CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-disabled skin-theme-clientpref-day vector-toc-available" lang="it" dir="ltr"> <head> <meta charset="UTF-8"> <title>Ossigeno - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-disabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )itwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":[",\t."," \t,"],"wgDigitTransformTable":["",""], "wgDefaultDateFormat":"dmy","wgMonthNames":["","gennaio","febbraio","marzo","aprile","maggio","giugno","luglio","agosto","settembre","ottobre","novembre","dicembre"],"wgRequestId":"51437b75-aff3-43f5-9fb0-f00ad5225bd3","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Ossigeno","wgTitle":"Ossigeno","wgCurRevisionId":139077929,"wgRevisionId":139077929,"wgArticleId":3142,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Template Webarchive - collegamenti all'Internet Archive","P3365 letta da Wikidata","P1417 letta da Wikidata","Voci con codice Thesaurus BNCF","Voci con codice LCCN","Voci con codice GND","Voci con codice BNE","Voci con codice BNF","Voci con codice J9U","Voci con codice NDL","Voci non biografiche con codici di controllo di autorità","Elementi chimici","Ossigeno","Fluidi refrigeranti","Medicinali essenziali secondo l'Organizzazione Mondiale della Sanità"], "wgPageViewLanguage":"it","wgPageContentLanguage":"it","wgPageContentModel":"wikitext","wgRelevantPageName":"Ossigeno","wgRelevantArticleId":3142,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":false,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"it","pageLanguageDir":"ltr","pageVariantFallbacks":"it"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":30000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q629","wgCheckUserClientHintsHeadersJsApi":["brands","architecture", "bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.gadget.coloriDarkMode-default":"ready","ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","ext.math.styles":"ready","mediawiki.page.gallery.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","jquery.makeCollapsible.styles":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","mediawiki.page.media","site","mediawiki.page.ready","jquery.makeCollapsible", "mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.MainPageWikiList","ext.gadget.stru-commonsupload","ext.gadget.HiddenCat","ext.gadget.ReferenceTooltips","ext.gadget.TitoloErrato","ext.gadget.NewSection","ext.gadget.RichiediRevisioneBozza","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=it&modules=ext.cite.styles%7Cext.math.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cjquery.makeCollapsible.styles%7Cmediawiki.page.gallery.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=it&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=it&modules=ext.gadget.coloriDarkMode-default&only=styles&skin=vector-2022"> <link rel="stylesheet" href="/w/load.php?lang=it&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/d/d9/Hydrogenglow.jpg"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="1200"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Hydrogenglow.jpg/800px-Hydrogenglow.jpg"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="800"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Hydrogenglow.jpg/640px-Hydrogenglow.jpg"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="640"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Ossigeno - Wikipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//it.m.wikipedia.org/wiki/Ossigeno"> <link rel="alternate" type="application/x-wiki" title="Modifica" href="/w/index.php?title=Ossigeno&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (it)"> <link rel="EditURI" type="application/rsd+xml" href="//it.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://it.wikipedia.org/wiki/Ossigeno"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.it"> <link rel="alternate" type="application/atom+xml" title="Feed Atom di Wikipedia" href="/w/index.php?title=Speciale:UltimeModifiche&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Ossigeno rootpage-Ossigeno skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Vai al contenuto</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Sito"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Menu principale" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Menu principale</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Menu principale</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">nascondi</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigazione </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Pagina_principale" title="Visita la pagina principale [z]" accesskey="z"><span>Pagina principale</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Speciale:UltimeModifiche" title="Elenco delle ultime modifiche del sito [r]" accesskey="r"><span>Ultime modifiche</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Speciale:PaginaCasuale" title="Mostra una pagina a caso [x]" accesskey="x"><span>Una voce a caso</span></a></li><li id="n-nearby-pages-title" class="mw-list-item"><a href="/wiki/Speciale:NelleVicinanze"><span>Nelle vicinanze</span></a></li><li id="n-vetrina" class="mw-list-item"><a href="/wiki/Wikipedia:Vetrina"><span>Vetrina</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Aiuto:Aiuto" title="Pagine di aiuto"><span>Aiuto</span></a></li><li id="n-Sportello-informazioni" class="mw-list-item"><a href="/wiki/Aiuto:Sportello_informazioni"><span>Sportello informazioni</span></a></li> </ul> </div> </div> <div id="p-Comunità" class="vector-menu mw-portlet mw-portlet-Comunità" > <div class="vector-menu-heading"> Comunità </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-portal" class="mw-list-item"><a href="/wiki/Portale:Comunit%C3%A0" title="Descrizione del progetto, cosa puoi fare, dove trovare le cose"><span>Portale Comunità</span></a></li><li id="n-villagepump" class="mw-list-item"><a href="/wiki/Wikipedia:Bar"><span>Bar</span></a></li><li id="n-wikipediano" class="mw-list-item"><a href="/wiki/Wikipedia:Wikipediano"><span>Il Wikipediano</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="/wiki/Wikipedia:Contatti"><span>Contatti</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Pagina_principale" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="L'enciclopedia libera" src="/static/images/mobile/copyright/wikipedia-tagline-it.svg" width="120" height="13" style="width: 7.5em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Speciale:Ricerca" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Cerca in Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Ricerca</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Cerca in Wikipedia" aria-label="Cerca in Wikipedia" autocapitalize="sentences" title="Cerca in Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Speciale:Ricerca"> </div> <button class="cdx-button cdx-search-input__end-button">Ricerca</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Strumenti personali"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Aspetto"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Modifica la dimensione, la larghezza e il colore del testo" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Aspetto" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Aspetto</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_it.wikipedia.org&uselang=it" class=""><span>Fai una donazione</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:CreaUtenza&returnto=Ossigeno" title="Si consiglia di registrarsi e di effettuare l'accesso, anche se non è obbligatorio" class=""><span>registrati</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:Entra&returnto=Ossigeno" title="Si consiglia di effettuare l'accesso, anche se non è obbligatorio [o]" accesskey="o" class=""><span>entra</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Altre opzioni" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Strumenti personali" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Strumenti personali</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Menu utente" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_it.wikipedia.org&uselang=it"><span>Fai una donazione</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Speciale:CreaUtenza&returnto=Ossigeno" title="Si consiglia di registrarsi e di effettuare l'accesso, anche se non è obbligatorio"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>registrati</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Speciale:Entra&returnto=Ossigeno" title="Si consiglia di effettuare l'accesso, anche se non è obbligatorio [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>entra</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pagine per utenti anonimi <a href="/wiki/Aiuto:Benvenuto" aria-label="Ulteriori informazioni sulla contribuzione"><span>ulteriori informazioni</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Speciale:MieiContributi" title="Un elenco delle modifiche fatte da questo indirizzo IP [y]" accesskey="y"><span>contributi</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Speciale:MieDiscussioni" title="Discussioni sulle modifiche fatte da questo indirizzo IP [n]" accesskey="n"><span>discussioni</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Sito"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Indice" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Indice</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inizio</div> </a> </li> <li id="toc-Storia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Storia"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Storia</span> </div> </a> <ul id="toc-Storia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Isotopi" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Isotopi"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Isotopi</span> </div> </a> <ul id="toc-Isotopi-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Allotropi" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Allotropi"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Allotropi</span> </div> </a> <button aria-controls="toc-Allotropi-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Allotropi</span> </button> <ul id="toc-Allotropi-sublist" class="vector-toc-list"> <li id="toc-Ossigeno_atomico" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Ossigeno_atomico"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Ossigeno atomico</span> </div> </a> <ul id="toc-Ossigeno_atomico-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Ossigeno_biatomico" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Ossigeno_biatomico"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Ossigeno biatomico</span> </div> </a> <ul id="toc-Ossigeno_biatomico-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Ozono" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Ozono"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Ozono</span> </div> </a> <ul id="toc-Ozono-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Tetraossigeno" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Tetraossigeno"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>Tetraossigeno</span> </div> </a> <ul id="toc-Tetraossigeno-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Disponibilità" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Disponibilità"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Disponibilità</span> </div> </a> <ul id="toc-Disponibilità-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Produzione" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Produzione"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Produzione</span> </div> </a> <button aria-controls="toc-Produzione-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Produzione</span> </button> <ul id="toc-Produzione-sublist" class="vector-toc-list"> <li id="toc-Preparazione_in_laboratorio" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Preparazione_in_laboratorio"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>Preparazione in laboratorio</span> </div> </a> <ul id="toc-Preparazione_in_laboratorio-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Preparazione_industriale" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Preparazione_industriale"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.2</span> <span>Preparazione industriale</span> </div> </a> <ul id="toc-Preparazione_industriale-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Composti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Composti"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Composti</span> </div> </a> <ul id="toc-Composti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Applicazioni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Applicazioni"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Applicazioni</span> </div> </a> <ul id="toc-Applicazioni-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Precauzioni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Precauzioni"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Precauzioni</span> </div> </a> <button aria-controls="toc-Precauzioni-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Precauzioni</span> </button> <ul id="toc-Precauzioni-sublist" class="vector-toc-list"> <li id="toc-Pericolo_di_esplosione_o_combustione" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Pericolo_di_esplosione_o_combustione"> <div class="vector-toc-text"> <span class="vector-toc-numb">8.1</span> <span>Pericolo di esplosione o combustione</span> </div> </a> <ul id="toc-Pericolo_di_esplosione_o_combustione-sublist" class="vector-toc-list"> <li id="toc-Ossigenocompatibilità" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Ossigenocompatibilità"> <div class="vector-toc-text"> <span class="vector-toc-numb">8.1.1</span> <span>Ossigenocompatibilità</span> </div> </a> <ul id="toc-Ossigenocompatibilità-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Tossicità" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Tossicità"> <div class="vector-toc-text"> <span class="vector-toc-numb">8.2</span> <span>Tossicità</span> </div> </a> <ul id="toc-Tossicità-sublist" class="vector-toc-list"> <li id="toc-Tossicità_dei_composti" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Tossicità_dei_composti"> <div class="vector-toc-text"> <span class="vector-toc-numb">8.2.1</span> <span>Tossicità dei composti</span> </div> </a> <ul id="toc-Tossicità_dei_composti-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliografia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bibliografia"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>Bibliografia</span> </div> </a> <ul id="toc-Bibliografia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">11</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altri_progetti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Altri_progetti"> <div class="vector-toc-text"> <span class="vector-toc-numb">12</span> <span>Altri progetti</span> </div> </a> <ul id="toc-Altri_progetti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">13</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Indice" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Mostra/Nascondi l'indice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Mostra/Nascondi l'indice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Ossigeno</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vai a una voce in un'altra lingua. Disponibile in 209 lingue" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-209" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">209 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Suurstof" title="Suurstof - afrikaans" lang="af" hreflang="af" data-title="Suurstof" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Sauerstoff" title="Sauerstoff - tedesco svizzero" lang="gsw" hreflang="gsw" data-title="Sauerstoff" data-language-autonym="Alemannisch" data-language-local-name="tedesco svizzero" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-am mw-list-item"><a href="https://am.wikipedia.org/wiki/%E1%8A%A6%E1%8A%AD%E1%88%B2%E1%8C%85%E1%8A%95" title="ኦክሲጅን - amarico" lang="am" hreflang="am" data-title="ኦክሲጅን" data-language-autonym="አማርኛ" data-language-local-name="amarico" class="interlanguage-link-target"><span>አማርኛ</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Oxicheno" title="Oxicheno - aragonese" lang="an" hreflang="an" data-title="Oxicheno" data-language-autonym="Aragonés" data-language-local-name="aragonese" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ang mw-list-item"><a href="https://ang.wikipedia.org/wiki/%C3%86%C3%B0mlyft" title="Æðmlyft - inglese antico" lang="ang" hreflang="ang" data-title="Æðmlyft" data-language-autonym="Ænglisc" data-language-local-name="inglese antico" class="interlanguage-link-target"><span>Ænglisc</span></a></li><li class="interlanguage-link interwiki-anp mw-list-item"><a href="https://anp.wikipedia.org/wiki/%E0%A4%91%E0%A4%95%E0%A5%8D%E0%A4%B8%E0%A5%80%E0%A4%9C%E0%A4%A8" title="ऑक्सीजन - angika" lang="anp" hreflang="anp" data-title="ऑक्सीजन" data-language-autonym="अंगिका" data-language-local-name="angika" class="interlanguage-link-target"><span>अंगिका</span></a></li><li class="interlanguage-link interwiki-ar badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://ar.wikipedia.org/wiki/%D8%A3%D9%83%D8%B3%D8%AC%D9%8A%D9%86" title="أكسجين - arabo" lang="ar" hreflang="ar" data-title="أكسجين" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D8%A4%D9%83%D8%B3%D9%8A%D8%AC%D9%8A%D9%86" title="ؤكسيجين - arabo marocchino" lang="ary" hreflang="ary" data-title="ؤكسيجين" data-language-autonym="الدارجة" data-language-local-name="arabo marocchino" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%A7%D9%88%D9%83%D8%B3%D9%8A%D8%AC%D9%8A%D9%86" title="اوكسيجين - arabo egiziano" lang="arz" hreflang="arz" data-title="اوكسيجين" data-language-autonym="مصرى" data-language-local-name="arabo egiziano" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%85%E0%A6%AE%E0%A7%8D%E0%A6%B2%E0%A6%9C%E0%A6%BE%E0%A6%A8" title="অম্লজান - assamese" lang="as" hreflang="as" data-title="অম্লজান" data-language-autonym="অসমীয়া" data-language-local-name="assamese" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Ox%C3%ADxenu" title="Oxíxenu - asturiano" lang="ast" hreflang="ast" data-title="Oxíxenu" data-language-autonym="Asturianu" data-language-local-name="asturiano" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-awa mw-list-item"><a href="https://awa.wikipedia.org/wiki/%E0%A4%91%E0%A4%95%E0%A5%8D%E0%A4%B8%E0%A5%80%E0%A4%9C%E0%A4%A8" title="ऑक्सीजन - awadhi" lang="awa" hreflang="awa" data-title="ऑक्सीजन" data-language-autonym="अवधी" data-language-local-name="awadhi" class="interlanguage-link-target"><span>अवधी</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Oksigen" title="Oksigen - azerbaigiano" lang="az" hreflang="az" data-title="Oksigen" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaigiano" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%A7%D9%88%DA%A9%D8%B3%DB%8C%DA%98%D9%86" title="اوکسیژن - South Azerbaijani" lang="azb" hreflang="azb" data-title="اوکسیژن" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%9A%D0%B8%D1%81%D0%BB%D0%BE%D1%80%D0%BE%D0%B4" title="Кислород - baschiro" lang="ba" hreflang="ba" data-title="Кислород" data-language-autonym="Башҡортса" data-language-local-name="baschiro" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-ban mw-list-item"><a href="https://ban.wikipedia.org/wiki/Oksig%C3%A9n" title="Oksigén - balinese" lang="ban" hreflang="ban" data-title="Oksigén" data-language-autonym="Basa Bali" data-language-local-name="balinese" class="interlanguage-link-target"><span>Basa Bali</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Sauastoff" title="Sauastoff - bavarese" lang="bar" hreflang="bar" data-title="Sauastoff" data-language-autonym="Boarisch" data-language-local-name="bavarese" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-bat-smg mw-list-item"><a href="https://bat-smg.wikipedia.org/wiki/Degounis" title="Degounis - samogitico" lang="sgs" hreflang="sgs" data-title="Degounis" data-language-autonym="Žemaitėška" data-language-local-name="samogitico" class="interlanguage-link-target"><span>Žemaitėška</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Oksiheno" title="Oksiheno - Central Bikol" lang="bcl" hreflang="bcl" data-title="Oksiheno" data-language-autonym="Bikol Central" data-language-local-name="Central Bikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9A%D1%96%D1%81%D0%BB%D0%B0%D1%80%D0%BE%D0%B4" title="Кісларод - bielorusso" lang="be" hreflang="be" data-title="Кісларод" data-language-autonym="Беларуская" data-language-local-name="bielorusso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A2%D0%BB%D0%B5%D0%BD" title="Тлен - Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Тлен" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9A%D0%B8%D1%81%D0%BB%D0%BE%D1%80%D0%BE%D0%B4" title="Кислород - bulgaro" lang="bg" hreflang="bg" data-title="Кислород" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%91%E0%A4%95%E0%A5%8D%E0%A4%B8%E0%A5%80%E0%A4%9C%E0%A4%A8" title="ऑक्सीजन - Bhojpuri" lang="bh" hreflang="bh" data-title="ऑक्सीजन" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-blk mw-list-item"><a href="https://blk.wikipedia.org/wiki/%E1%80%A1%E1%80%B1%E1%80%AC%E1%80%80%E1%80%BA%E1%80%9E%E1%80%AE%E1%80%85%E1%80%B2%E1%80%94%E1%80%BA" title="အောက်သီစဲန် - Pa'O" lang="blk" hreflang="blk" data-title="အောက်သီစဲန်" data-language-autonym="ပအိုဝ်ႏဘာႏသာႏ" data-language-local-name="Pa'O" class="interlanguage-link-target"><span>ပအိုဝ်ႏဘာႏသာႏ</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%85%E0%A6%95%E0%A7%8D%E0%A6%B8%E0%A6%BF%E0%A6%9C%E0%A7%87%E0%A6%A8" title="অক্সিজেন - bengalese" lang="bn" hreflang="bn" data-title="অক্সিজেন" data-language-autonym="বাংলা" data-language-local-name="bengalese" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%82%E0%BD%A6%E0%BD%BC%E0%BC%8B%E0%BD%A2%E0%BE%B3%E0%BD%B4%E0%BD%84%E0%BC%8B%E0%BC%8D" title="གསོ་རླུང་། - tibetano" lang="bo" hreflang="bo" data-title="གསོ་རླུང་།" data-language-autonym="བོད་ཡིག" data-language-local-name="tibetano" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Oksigen" title="Oksigen - bretone" lang="br" hreflang="br" data-title="Oksigen" data-language-autonym="Brezhoneg" data-language-local-name="bretone" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Kisik" title="Kisik - bosniaco" lang="bs" hreflang="bs" data-title="Kisik" data-language-autonym="Bosanski" data-language-local-name="bosniaco" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-bxr mw-list-item"><a href="https://bxr.wikipedia.org/wiki/%D0%A5%D2%AF%D1%88%D1%8D%D0%BB%D1%82%D2%AF%D1%80%D1%8D%D0%B3%D1%88%D1%8D" title="Хүшэлтүрэгшэ - Russia Buriat" lang="bxr" hreflang="bxr" data-title="Хүшэлтүрэгшэ" data-language-autonym="Буряад" data-language-local-name="Russia Buriat" class="interlanguage-link-target"><span>Буряад</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Oxigen" title="Oxigen - catalano" lang="ca" hreflang="ca" data-title="Oxigen" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/I%C5%8Dng" title="Iōng - Mindong" lang="cdo" hreflang="cdo" data-title="Iōng" data-language-autonym="閩東語 / Mìng-dĕ̤ng-ngṳ̄" data-language-local-name="Mindong" class="interlanguage-link-target"><span>閩東語 / Mìng-dĕ̤ng-ngṳ̄</span></a></li><li class="interlanguage-link interwiki-ce mw-list-item"><a href="https://ce.wikipedia.org/wiki/%D0%9C%D1%83%D1%81%D1%82%D0%BB%D1%83%D1%80%D0%B3" title="Мустлург - ceceno" lang="ce" hreflang="ce" data-title="Мустлург" data-language-autonym="Нохчийн" data-language-local-name="ceceno" class="interlanguage-link-target"><span>Нохчийн</span></a></li><li class="interlanguage-link interwiki-ceb mw-list-item"><a href="https://ceb.wikipedia.org/wiki/Oksihena" title="Oksihena - cebuano" lang="ceb" hreflang="ceb" data-title="Oksihena" data-language-autonym="Cebuano" data-language-local-name="cebuano" class="interlanguage-link-target"><span>Cebuano</span></a></li><li class="interlanguage-link interwiki-chr mw-list-item"><a href="https://chr.wikipedia.org/wiki/%E1%8E%A4%E1%8F%AC%E1%8E%B3%E1%8F%95%E1%8F%8D%E1%8F%97" title="ᎤᏬᎳᏕᏍᏗ - cherokee" lang="chr" hreflang="chr" data-title="ᎤᏬᎳᏕᏍᏗ" data-language-autonym="ᏣᎳᎩ" data-language-local-name="cherokee" class="interlanguage-link-target"><span>ᏣᎳᎩ</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%A6%DB%86%DA%A9%D8%B3%D8%AC%DB%8C%D9%86" title="ئۆکسجین - curdo centrale" lang="ckb" hreflang="ckb" data-title="ئۆکسجین" data-language-autonym="کوردی" data-language-local-name="curdo centrale" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-co mw-list-item"><a href="https://co.wikipedia.org/wiki/Ossigenu" title="Ossigenu - corso" lang="co" hreflang="co" data-title="Ossigenu" data-language-autonym="Corsu" data-language-local-name="corso" class="interlanguage-link-target"><span>Corsu</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Kysl%C3%ADk" title="Kyslík - ceco" lang="cs" hreflang="cs" data-title="Kyslík" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%99%D3%B3%C3%A7%D0%B0%D0%BC%C4%83%D1%88" title="Йӳçамăш - ciuvascio" lang="cv" hreflang="cv" data-title="Йӳçамăш" data-language-autonym="Чӑвашла" data-language-local-name="ciuvascio" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Ocsigen" title="Ocsigen - gallese" lang="cy" hreflang="cy" data-title="Ocsigen" data-language-autonym="Cymraeg" data-language-local-name="gallese" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da badge-Q17559452 badge-recommendedarticle mw-list-item" title="voce consigliata"><a href="https://da.wikipedia.org/wiki/Ilt" title="Ilt - danese" lang="da" hreflang="da" data-title="Ilt" data-language-autonym="Dansk" data-language-local-name="danese" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de badge-Q17437798 badge-goodarticle mw-list-item" title="voce di qualità"><a href="https://de.wikipedia.org/wiki/Sauerstoff" title="Sauerstoff - tedesco" lang="de" hreflang="de" data-title="Sauerstoff" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/Oksicen" title="Oksicen - Zazaki" lang="diq" hreflang="diq" data-title="Oksicen" data-language-autonym="Zazaki" data-language-local-name="Zazaki" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9F%CE%BE%CF%85%CE%B3%CF%8C%CE%BD%CE%BF" title="Οξυγόνο - greco" lang="el" hreflang="el" data-title="Οξυγόνο" data-language-autonym="Ελληνικά" data-language-local-name="greco" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://en.wikipedia.org/wiki/Oxygen" title="Oxygen - inglese" lang="en" hreflang="en" data-title="Oxygen" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Oksigeno" title="Oksigeno - esperanto" lang="eo" hreflang="eo" data-title="Oksigeno" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://es.wikipedia.org/wiki/Ox%C3%ADgeno" title="Oxígeno - spagnolo" lang="es" hreflang="es" data-title="Oxígeno" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Hapnik" title="Hapnik - estone" lang="et" hreflang="et" data-title="Hapnik" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Oxigeno" title="Oxigeno - basco" lang="eu" hreflang="eu" data-title="Oxigeno" data-language-autonym="Euskara" data-language-local-name="basco" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-ext mw-list-item"><a href="https://ext.wikipedia.org/wiki/Oss%C3%ADgenu" title="Ossígenu - estremegno" lang="ext" hreflang="ext" data-title="Ossígenu" data-language-autonym="Estremeñu" data-language-local-name="estremegno" class="interlanguage-link-target"><span>Estremeñu</span></a></li><li class="interlanguage-link interwiki-fa badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://fa.wikipedia.org/wiki/%D8%A7%DA%A9%D8%B3%DB%8C%DA%98%D9%86" title="اکسیژن - persiano" lang="fa" hreflang="fa" data-title="اکسیژن" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Happi" title="Happi - finlandese" lang="fi" hreflang="fi" data-title="Happi" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fj mw-list-item"><a href="https://fj.wikipedia.org/wiki/Okosijeni" title="Okosijeni - figiano" lang="fj" hreflang="fj" data-title="Okosijeni" data-language-autonym="Na Vosa Vakaviti" data-language-local-name="figiano" class="interlanguage-link-target"><span>Na Vosa Vakaviti</span></a></li><li class="interlanguage-link interwiki-fo mw-list-item"><a href="https://fo.wikipedia.org/wiki/Oxygen" title="Oxygen - faroese" lang="fo" hreflang="fo" data-title="Oxygen" data-language-autonym="Føroyskt" data-language-local-name="faroese" class="interlanguage-link-target"><span>Føroyskt</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Oxyg%C3%A8ne" title="Oxygène - francese" lang="fr" hreflang="fr" data-title="Oxygène" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/S%C3%BCrstoof" title="Sürstoof - frisone settentrionale" lang="frr" hreflang="frr" data-title="Sürstoof" data-language-autonym="Nordfriisk" data-language-local-name="frisone settentrionale" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-fur mw-list-item"><a href="https://fur.wikipedia.org/wiki/Ossigjen" title="Ossigjen - friulano" lang="fur" hreflang="fur" data-title="Ossigjen" data-language-autonym="Furlan" data-language-local-name="friulano" class="interlanguage-link-target"><span>Furlan</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Soerstof" title="Soerstof - frisone occidentale" lang="fy" hreflang="fy" data-title="Soerstof" data-language-autonym="Frysk" data-language-local-name="frisone occidentale" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Ocsaigin" title="Ocsaigin - irlandese" lang="ga" hreflang="ga" data-title="Ocsaigin" data-language-autonym="Gaeilge" data-language-local-name="irlandese" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gan mw-list-item"><a href="https://gan.wikipedia.org/wiki/%E6%B0%A7" title="氧 - gan" lang="gan" hreflang="gan" data-title="氧" data-language-autonym="贛語" data-language-local-name="gan" class="interlanguage-link-target"><span>贛語</span></a></li><li class="interlanguage-link interwiki-gcr mw-list-item"><a href="https://gcr.wikipedia.org/wiki/Oksij%C3%A8n" title="Oksijèn - Guianan Creole" lang="gcr" hreflang="gcr" data-title="Oksijèn" data-language-autonym="Kriyòl gwiyannen" data-language-local-name="Guianan Creole" class="interlanguage-link-target"><span>Kriyòl gwiyannen</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Ogsaidean" title="Ogsaidean - gaelico scozzese" lang="gd" hreflang="gd" data-title="Ogsaidean" data-language-autonym="Gàidhlig" data-language-local-name="gaelico scozzese" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://gl.wikipedia.org/wiki/Os%C3%ADxeno" title="Osíxeno - galiziano" lang="gl" hreflang="gl" data-title="Osíxeno" data-language-autonym="Galego" data-language-local-name="galiziano" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gn mw-list-item"><a href="https://gn.wikipedia.org/wiki/Tatarapo" title="Tatarapo - guaraní" lang="gn" hreflang="gn" data-title="Tatarapo" data-language-autonym="Avañe'ẽ" data-language-local-name="guaraní" class="interlanguage-link-target"><span>Avañe'ẽ</span></a></li><li class="interlanguage-link interwiki-gom mw-list-item"><a href="https://gom.wikipedia.org/wiki/%E0%A4%91%E0%A4%95%E0%A5%8D%E0%A4%B8%E0%A4%BF%E0%A4%9C%E0%A4%A8" title="ऑक्सिजन - konkani goano" lang="gom" hreflang="gom" data-title="ऑक्सिजन" data-language-autonym="गोंयची कोंकणी / Gõychi Konknni" data-language-local-name="konkani goano" class="interlanguage-link-target"><span>गोंयची कोंकणी / Gõychi Konknni</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%AA%E0%AB%8D%E0%AA%B0%E0%AA%BE%E0%AA%A3%E0%AA%B5%E0%AA%BE%E0%AA%AF%E0%AB%81_(%E0%AA%91%E0%AA%95%E0%AB%8D%E0%AA%B8%E0%AB%80%E0%AA%9C%E0%AA%A8)" title="પ્રાણવાયુ (ઑક્સીજન) - gujarati" lang="gu" hreflang="gu" data-title="પ્રાણવાયુ (ઑક્સીજન)" data-language-autonym="ગુજરાતી" data-language-local-name="gujarati" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-gv mw-list-item"><a href="https://gv.wikipedia.org/wiki/Ocsygien" title="Ocsygien - mannese" lang="gv" hreflang="gv" data-title="Ocsygien" data-language-autonym="Gaelg" data-language-local-name="mannese" class="interlanguage-link-target"><span>Gaelg</span></a></li><li class="interlanguage-link interwiki-hak mw-list-item"><a href="https://hak.wikipedia.org/wiki/Y%C3%B4ng" title="Yông - hakka" lang="hak" hreflang="hak" data-title="Yông" data-language-autonym="客家語 / Hak-kâ-ngî" data-language-local-name="hakka" class="interlanguage-link-target"><span>客家語 / Hak-kâ-ngî</span></a></li><li class="interlanguage-link interwiki-haw mw-list-item"><a href="https://haw.wikipedia.org/wiki/%CA%BBOkikene" title="ʻOkikene - hawaiano" lang="haw" hreflang="haw" data-title="ʻOkikene" data-language-autonym="Hawaiʻi" data-language-local-name="hawaiano" class="interlanguage-link-target"><span>Hawaiʻi</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%97%D7%9E%D7%A6%D7%9F" title="חמצן - ebraico" lang="he" hreflang="he" data-title="חמצן" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%91%E0%A4%95%E0%A5%8D%E0%A4%B8%E0%A5%80%E0%A4%9C%E0%A4%A8" title="ऑक्सीजन - hindi" lang="hi" hreflang="hi" data-title="ऑक्सीजन" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hif mw-list-item"><a href="https://hif.wikipedia.org/wiki/Oxygen" title="Oxygen - hindi figiano" lang="hif" hreflang="hif" data-title="Oxygen" data-language-autonym="Fiji Hindi" data-language-local-name="hindi figiano" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Kisik" title="Kisik - croato" lang="hr" hreflang="hr" data-title="Kisik" data-language-autonym="Hrvatski" data-language-local-name="croato" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hsb mw-list-item"><a href="https://hsb.wikipedia.org/wiki/Kislik" title="Kislik - alto sorabo" lang="hsb" hreflang="hsb" data-title="Kislik" data-language-autonym="Hornjoserbsce" data-language-local-name="alto sorabo" class="interlanguage-link-target"><span>Hornjoserbsce</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Oksij%C3%A8n" title="Oksijèn - creolo haitiano" lang="ht" hreflang="ht" data-title="Oksijèn" data-language-autonym="Kreyòl ayisyen" data-language-local-name="creolo haitiano" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu badge-Q17437798 badge-goodarticle mw-list-item" title="voce di qualità"><a href="https://hu.wikipedia.org/wiki/Oxig%C3%A9n" title="Oxigén - ungherese" lang="hu" hreflang="hu" data-title="Oxigén" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B9%D5%A9%D5%BE%D5%A1%D5%AE%D5%AB%D5%B6" title="Թթվածին - armeno" lang="hy" hreflang="hy" data-title="Թթվածին" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hyw mw-list-item"><a href="https://hyw.wikipedia.org/wiki/%D4%B9%D5%A9%D5%B8%D6%82%D5%A1%D5%AE%D5%AB%D5%B6" title="Թթուածին - Western Armenian" lang="hyw" hreflang="hyw" data-title="Թթուածին" data-language-autonym="Արեւմտահայերէն" data-language-local-name="Western Armenian" class="interlanguage-link-target"><span>Արեւմտահայերէն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Oxygeno" title="Oxygeno - interlingua" lang="ia" hreflang="ia" data-title="Oxygeno" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Oksigen" title="Oksigen - indonesiano" lang="id" hreflang="id" data-title="Oksigen" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ilo mw-list-item"><a href="https://ilo.wikipedia.org/wiki/Oksiheno" title="Oksiheno - ilocano" lang="ilo" hreflang="ilo" data-title="Oksiheno" data-language-autonym="Ilokano" data-language-local-name="ilocano" class="interlanguage-link-target"><span>Ilokano</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Oxo" title="Oxo - ido" lang="io" hreflang="io" data-title="Oxo" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/S%C3%BArefni" title="Súrefni - islandese" lang="is" hreflang="is" data-title="Súrefni" data-language-autonym="Íslenska" data-language-local-name="islandese" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-ja badge-Q17437798 badge-goodarticle mw-list-item" title="voce di qualità"><a href="https://ja.wikipedia.org/wiki/%E9%85%B8%E7%B4%A0" title="酸素 - giapponese" lang="ja" hreflang="ja" data-title="酸素" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jam mw-list-item"><a href="https://jam.wikipedia.org/wiki/Axijen" title="Axijen - creolo giamaicano" lang="jam" hreflang="jam" data-title="Axijen" data-language-autonym="Patois" data-language-local-name="creolo giamaicano" class="interlanguage-link-target"><span>Patois</span></a></li><li class="interlanguage-link interwiki-jbo mw-list-item"><a href="https://jbo.wikipedia.org/wiki/kijno" title="kijno - lojban" lang="jbo" hreflang="jbo" data-title="kijno" data-language-autonym="La .lojban." data-language-local-name="lojban" class="interlanguage-link-target"><span>La .lojban.</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Oksig%C3%A8n" title="Oksigèn - giavanese" lang="jv" hreflang="jv" data-title="Oksigèn" data-language-autonym="Jawa" data-language-local-name="giavanese" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9F%E1%83%90%E1%83%9C%E1%83%92%E1%83%91%E1%83%90%E1%83%93%E1%83%98" title="ჟანგბადი - georgiano" lang="ka" hreflang="ka" data-title="ჟანგბადი" data-language-autonym="ქართული" data-language-local-name="georgiano" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Uksijin" title="Uksijin - cabilo" lang="kab" hreflang="kab" data-title="Uksijin" data-language-autonym="Taqbaylit" data-language-local-name="cabilo" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-kbp mw-list-item"><a href="https://kbp.wikipedia.org/wiki/%C6%86k%C9%A9s%C9%A9z%C9%9Bn%C9%A9" title="Ɔkɩsɩzɛnɩ - Kabiye" lang="kbp" hreflang="kbp" data-title="Ɔkɩsɩzɛnɩ" data-language-autonym="Kabɩyɛ" data-language-local-name="Kabiye" class="interlanguage-link-target"><span>Kabɩyɛ</span></a></li><li class="interlanguage-link interwiki-kge mw-list-item"><a href="https://kge.wikipedia.org/wiki/Oksigen" title="Oksigen - Komering" lang="kge" hreflang="kge" data-title="Oksigen" data-language-autonym="Kumoring" data-language-local-name="Komering" class="interlanguage-link-target"><span>Kumoring</span></a></li><li class="interlanguage-link interwiki-ki mw-list-item"><a href="https://ki.wikipedia.org/wiki/Oxygen" title="Oxygen - kikuyu" lang="ki" hreflang="ki" data-title="Oxygen" data-language-autonym="Gĩkũyũ" data-language-local-name="kikuyu" class="interlanguage-link-target"><span>Gĩkũyũ</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9E%D1%82%D1%82%D0%B5%D0%B3%D1%96" title="Оттегі - kazako" lang="kk" hreflang="kk" data-title="Оттегі" data-language-autonym="Қазақша" data-language-local-name="kazako" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%86%E0%B2%AE%E0%B3%8D%E0%B2%B2%E0%B2%9C%E0%B2%A8%E0%B2%95" title="ಆಮ್ಲಜನಕ - kannada" lang="kn" hreflang="kn" data-title="ಆಮ್ಲಜನಕ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%82%B0%EC%86%8C" title="산소 - coreano" lang="ko" hreflang="ko" data-title="산소" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-koi mw-list-item"><a href="https://koi.wikipedia.org/wiki/%D0%A8%D3%A7%D0%BC%D1%83%D0%B2%D1%82%D1%8B%D1%80" title="Шӧмувтыр - permiaco" lang="koi" hreflang="koi" data-title="Шӧмувтыр" data-language-autonym="Перем коми" data-language-local-name="permiaco" class="interlanguage-link-target"><span>Перем коми</span></a></li><li class="interlanguage-link interwiki-ks mw-list-item"><a href="https://ks.wikipedia.org/wiki/%D8%A2%DA%A9%D8%B3%DB%8C%D8%AC%D9%8E%D9%86" title="آکسیجَن - kashmiri" lang="ks" hreflang="ks" data-title="آکسیجَن" data-language-autonym="कॉशुर / کٲشُر" data-language-local-name="kashmiri" class="interlanguage-link-target"><span>कॉशुर / کٲشُر</span></a></li><li class="interlanguage-link interwiki-ksh mw-list-item"><a href="https://ksh.wikipedia.org/wiki/Sauerstoff" title="Sauerstoff - coloniese" lang="ksh" hreflang="ksh" data-title="Sauerstoff" data-language-autonym="Ripoarisch" data-language-local-name="coloniese" class="interlanguage-link-target"><span>Ripoarisch</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Oks%C3%AEjen" title="Oksîjen - curdo" lang="ku" hreflang="ku" data-title="Oksîjen" data-language-autonym="Kurdî" data-language-local-name="curdo" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-kv mw-list-item"><a href="https://kv.wikipedia.org/wiki/%D0%A8%D0%BE%D0%BC%D0%B2%D0%B0%D1%87%D1%83%D0%B6%D1%8B%D1%81%D1%8C" title="Шомвачужысь - komi" lang="kv" hreflang="kv" data-title="Шомвачужысь" data-language-autonym="Коми" data-language-local-name="komi" class="interlanguage-link-target"><span>Коми</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Oksyjen" title="Oksyjen - cornico" lang="kw" hreflang="kw" data-title="Oksyjen" data-language-autonym="Kernowek" data-language-local-name="cornico" class="interlanguage-link-target"><span>Kernowek</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9A%D1%8B%D1%87%D0%BA%D1%8B%D0%BB%D1%82%D0%B5%D0%BA" title="Кычкылтек - kirghiso" lang="ky" hreflang="ky" data-title="Кычкылтек" data-language-autonym="Кыргызча" data-language-local-name="kirghiso" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Oxygenium" title="Oxygenium - latino" lang="la" hreflang="la" data-title="Oxygenium" data-language-autonym="Latina" data-language-local-name="latino" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Sauerstoff" title="Sauerstoff - lussemburghese" lang="lb" hreflang="lb" data-title="Sauerstoff" data-language-autonym="Lëtzebuergesch" data-language-local-name="lussemburghese" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lez mw-list-item"><a href="https://lez.wikipedia.org/wiki/%D0%9A%D0%B8%D1%81%D0%BB%D0%BE%D1%80%D0%BE%D0%B4" title="Кислород - lesgo" lang="lez" hreflang="lez" data-title="Кислород" data-language-autonym="Лезги" data-language-local-name="lesgo" class="interlanguage-link-target"><span>Лезги</span></a></li><li class="interlanguage-link interwiki-lfn mw-list-item"><a href="https://lfn.wikipedia.org/wiki/Osijen" title="Osijen - Lingua Franca Nova" lang="lfn" hreflang="lfn" data-title="Osijen" data-language-autonym="Lingua Franca Nova" data-language-local-name="Lingua Franca Nova" class="interlanguage-link-target"><span>Lingua Franca Nova</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Zuurstof" title="Zuurstof - limburghese" lang="li" hreflang="li" data-title="Zuurstof" data-language-autonym="Limburgs" data-language-local-name="limburghese" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lij mw-list-item"><a href="https://lij.wikipedia.org/wiki/Oscigeno" title="Oscigeno - ligure" lang="lij" hreflang="lij" data-title="Oscigeno" data-language-autonym="Ligure" data-language-local-name="ligure" class="interlanguage-link-target"><span>Ligure</span></a></li><li class="interlanguage-link interwiki-lld mw-list-item"><a href="https://lld.wikipedia.org/wiki/Oss%C3%ACgen" title="Ossìgen - Ladin" lang="lld" hreflang="lld" data-title="Ossìgen" data-language-autonym="Ladin" data-language-local-name="Ladin" class="interlanguage-link-target"><span>Ladin</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Os%C3%ACgeno" title="Osìgeno - lombardo" lang="lmo" hreflang="lmo" data-title="Osìgeno" data-language-autonym="Lombard" data-language-local-name="lombardo" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-ln mw-list-item"><a href="https://ln.wikipedia.org/wiki/Oksij%C9%9B%CC%81n%C3%AD" title="Oksijɛ́ní - lingala" lang="ln" hreflang="ln" data-title="Oksijɛ́ní" data-language-autonym="Lingála" data-language-local-name="lingala" class="interlanguage-link-target"><span>Lingála</span></a></li><li class="interlanguage-link interwiki-lo mw-list-item"><a href="https://lo.wikipedia.org/wiki/%E0%BA%AD%E0%BA%BB%E0%BA%81%E0%BA%8A%E0%BA%B5%E0%BB%81%E0%BA%8A%E0%BA%99" title="ອົກຊີແຊນ - lao" lang="lo" hreflang="lo" data-title="ອົກຊີແຊນ" data-language-autonym="ລາວ" data-language-local-name="lao" class="interlanguage-link-target"><span>ລາວ</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Deguonis" title="Deguonis - lituano" lang="lt" hreflang="lt" data-title="Deguonis" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Sk%C4%81beklis" title="Skābeklis - lettone" lang="lv" hreflang="lv" data-title="Skābeklis" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mdf mw-list-item"><a href="https://mdf.wikipedia.org/wiki/%D0%A8%D0%B0%D0%BF%D0%B0%D1%84%D0%BD%D0%B8" title="Шапафни - moksha" lang="mdf" hreflang="mdf" data-title="Шапафни" data-language-autonym="Мокшень" data-language-local-name="moksha" class="interlanguage-link-target"><span>Мокшень</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/%C3%94ksizenina" title="Ôksizenina - malgascio" lang="mg" hreflang="mg" data-title="Ôksizenina" data-language-autonym="Malagasy" data-language-local-name="malgascio" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-mhr mw-list-item"><a href="https://mhr.wikipedia.org/wiki/%D0%A8%D0%BE%D0%BF%D0%B5%D1%88%D1%82%D1%8B%D1%88" title="Шопештыш - Eastern Mari" lang="mhr" hreflang="mhr" data-title="Шопештыш" data-language-autonym="Олык марий" data-language-local-name="Eastern Mari" class="interlanguage-link-target"><span>Олык марий</span></a></li><li class="interlanguage-link interwiki-mi mw-list-item"><a href="https://mi.wikipedia.org/wiki/H%C4%81ora" title="Hāora - maori" lang="mi" hreflang="mi" data-title="Hāora" data-language-autonym="Māori" data-language-local-name="maori" class="interlanguage-link-target"><span>Māori</span></a></li><li class="interlanguage-link interwiki-min mw-list-item"><a href="https://min.wikipedia.org/wiki/Oksigen" title="Oksigen - menangkabau" lang="min" hreflang="min" data-title="Oksigen" data-language-autonym="Minangkabau" data-language-local-name="menangkabau" class="interlanguage-link-target"><span>Minangkabau</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9A%D0%B8%D1%81%D0%BB%D0%BE%D1%80%D0%BE%D0%B4" title="Кислород - macedone" lang="mk" hreflang="mk" data-title="Кислород" data-language-autonym="Македонски" data-language-local-name="macedone" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%93%E0%B4%95%E0%B5%8D%E0%B4%B8%E0%B4%BF%E0%B4%9C%E0%B5%BB" title="ഓക്സിജൻ - malayalam" lang="ml" hreflang="ml" data-title="ഓക്സിജൻ" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A5%D2%AF%D1%87%D0%B8%D0%BB%D1%82%D3%A9%D1%80%D3%A9%D0%B3%D1%87" title="Хүчилтөрөгч - mongolo" lang="mn" hreflang="mn" data-title="Хүчилтөрөгч" data-language-autonym="Монгол" data-language-local-name="mongolo" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mni mw-list-item"><a href="https://mni.wikipedia.org/wiki/%EA%AF%91%EA%AF%A3%EA%AF%9B%EA%AF%81%EA%AF%A4%EA%AF%96%EA%AF%A6%EA%AF%9F" title="ꯑꯣꯛꯁꯤꯖꯦꯟ - manipuri" lang="mni" hreflang="mni" data-title="ꯑꯣꯛꯁꯤꯖꯦꯟ" data-language-autonym="ꯃꯤꯇꯩ ꯂꯣꯟ" data-language-local-name="manipuri" class="interlanguage-link-target"><span>ꯃꯤꯇꯩ ꯂꯣꯟ</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%91%E0%A4%95%E0%A5%8D%E0%A4%B8%E0%A4%BF%E0%A4%9C%E0%A4%A8" title="ऑक्सिजन - marathi" lang="mr" hreflang="mr" data-title="ऑक्सिजन" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-mrj mw-list-item"><a href="https://mrj.wikipedia.org/wiki/%D0%9A%D0%B8%D1%81%D0%BB%D0%BE%D1%80%D0%BE%D0%B4" title="Кислород - mari occidentale" lang="mrj" hreflang="mrj" data-title="Кислород" data-language-autonym="Кырык мары" data-language-local-name="mari occidentale" class="interlanguage-link-target"><span>Кырык мары</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Oksigen" title="Oksigen - malese" lang="ms" hreflang="ms" data-title="Oksigen" data-language-autonym="Bahasa Melayu" data-language-local-name="malese" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mt mw-list-item"><a href="https://mt.wikipedia.org/wiki/Ossi%C4%A1enu" title="Ossiġenu - maltese" lang="mt" hreflang="mt" data-title="Ossiġenu" data-language-autonym="Malti" data-language-local-name="maltese" class="interlanguage-link-target"><span>Malti</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%A1%E1%80%B1%E1%80%AC%E1%80%80%E1%80%BA%E1%80%86%E1%80%AE%E1%80%82%E1%80%BB%E1%80%84%E1%80%BA" title="အောက်ဆီဂျင် - birmano" lang="my" hreflang="my" data-title="အောက်ဆီဂျင်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmano" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-myv mw-list-item"><a href="https://myv.wikipedia.org/wiki/%D0%A7%D0%B0%D0%BF%D0%B0%D0%BC%D0%BE_%D1%87%D0%B0%D1%87%D1%82%D1%8B%D0%B9" title="Чапамо чачтый - erzya" lang="myv" hreflang="myv" data-title="Чапамо чачтый" data-language-autonym="Эрзянь" data-language-local-name="erzya" class="interlanguage-link-target"><span>Эрзянь</span></a></li><li class="interlanguage-link interwiki-mzn mw-list-item"><a href="https://mzn.wikipedia.org/wiki/%D8%A7%D9%88%DA%A9%D8%B3%DB%8C%D8%AC%D9%86" title="اوکسیجن - mazandarani" lang="mzn" hreflang="mzn" data-title="اوکسیجن" data-language-autonym="مازِرونی" data-language-local-name="mazandarani" class="interlanguage-link-target"><span>مازِرونی</span></a></li><li class="interlanguage-link interwiki-nah mw-list-item"><a href="https://nah.wikipedia.org/wiki/Ehecayoh" title="Ehecayoh - Nahuatl" lang="nah" hreflang="nah" data-title="Ehecayoh" data-language-autonym="Nāhuatl" data-language-local-name="Nahuatl" class="interlanguage-link-target"><span>Nāhuatl</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Suerstoff" title="Suerstoff - basso tedesco" lang="nds" hreflang="nds" data-title="Suerstoff" data-language-autonym="Plattdüütsch" data-language-local-name="basso tedesco" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%BE%E0%A4%A3%E0%A4%B5%E0%A4%BE%E0%A4%AF%E0%A5%81" title="प्राणवायु - nepalese" lang="ne" hreflang="ne" data-title="प्राणवायु" data-language-autonym="नेपाली" data-language-local-name="nepalese" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-new mw-list-item"><a href="https://new.wikipedia.org/wiki/%E0%A4%85%E0%A4%95%E0%A5%8D%E0%A4%B8%E0%A4%BF%E0%A4%9C%E0%A4%A8" title="अक्सिजन - newari" lang="new" hreflang="new" data-title="अक्सिजन" data-language-autonym="नेपाल भाषा" data-language-local-name="newari" class="interlanguage-link-target"><span>नेपाल भाषा</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Zuurstof_(element)" title="Zuurstof (element) - olandese" lang="nl" hreflang="nl" data-title="Zuurstof (element)" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Oksygen" title="Oksygen - norvegese nynorsk" lang="nn" hreflang="nn" data-title="Oksygen" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegese nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Oksygen" title="Oksygen - norvegese bokmål" lang="nb" hreflang="nb" data-title="Oksygen" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nv mw-list-item"><a href="https://nv.wikipedia.org/wiki/N%C3%AD%C5%82ch%CA%BCi_y%C3%A1%CA%BC%C3%A1t%CA%BC%C3%A9ehii" title="Níłchʼi yáʼátʼéehii - navajo" lang="nv" hreflang="nv" data-title="Níłchʼi yáʼátʼéehii" data-language-autonym="Diné bizaad" data-language-local-name="navajo" class="interlanguage-link-target"><span>Diné bizaad</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Oxig%C3%A8n" title="Oxigèn - occitano" lang="oc" hreflang="oc" data-title="Oxigèn" data-language-autonym="Occitan" data-language-local-name="occitano" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-olo mw-list-item"><a href="https://olo.wikipedia.org/wiki/Happamehsuadu" title="Happamehsuadu - Livvi-Karelian" lang="olo" hreflang="olo" data-title="Happamehsuadu" data-language-autonym="Livvinkarjala" data-language-local-name="Livvi-Karelian" class="interlanguage-link-target"><span>Livvinkarjala</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Ooksijiinii" title="Ooksijiinii - oromo" lang="om" hreflang="om" data-title="Ooksijiinii" data-language-autonym="Oromoo" data-language-local-name="oromo" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%85%E0%AC%AE%E0%AD%8D%E0%AC%B3%E0%AC%9C%E0%AC%BE%E0%AC%A8" title="ଅମ୍ଳଜାନ - odia" lang="or" hreflang="or" data-title="ଅମ୍ଳଜାନ" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="odia" class="interlanguage-link-target"><span>ଓଡ଼ିଆ</span></a></li><li class="interlanguage-link interwiki-os mw-list-item"><a href="https://os.wikipedia.org/wiki/%D0%A2%D1%83%D0%B0%D0%B3%D0%B3%D1%83%D1%8B%D1%80" title="Туаггуыр - ossetico" lang="os" hreflang="os" data-title="Туаггуыр" data-language-autonym="Ирон" data-language-local-name="ossetico" class="interlanguage-link-target"><span>Ирон</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%86%E0%A8%95%E0%A8%B8%E0%A9%80%E0%A8%9C%E0%A8%A8" title="ਆਕਸੀਜਨ - punjabi" lang="pa" hreflang="pa" data-title="ਆਕਸੀਜਨ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pam mw-list-item"><a href="https://pam.wikipedia.org/wiki/Oks%C3%ADhenu" title="Oksíhenu - pampanga" lang="pam" hreflang="pam" data-title="Oksíhenu" data-language-autonym="Kapampangan" data-language-local-name="pampanga" class="interlanguage-link-target"><span>Kapampangan</span></a></li><li class="interlanguage-link interwiki-pap mw-list-item"><a href="https://pap.wikipedia.org/wiki/Z%C3%BCrst%C3%B2f" title="Zürstòf - papiamento" lang="pap" hreflang="pap" data-title="Zürstòf" data-language-autonym="Papiamentu" data-language-local-name="papiamento" class="interlanguage-link-target"><span>Papiamentu</span></a></li><li class="interlanguage-link interwiki-pi mw-list-item"><a href="https://pi.wikipedia.org/wiki/%E0%A4%85%E0%A4%95%E0%A5%8D%E0%A4%B8%E0%A4%BF%E0%A4%9C%E0%A4%A8" title="अक्सिजन - pali" lang="pi" hreflang="pi" data-title="अक्सिजन" data-language-autonym="पालि" data-language-local-name="pali" class="interlanguage-link-target"><span>पालि</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Tlen" title="Tlen - polacco" lang="pl" hreflang="pl" data-title="Tlen" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Oss%C3%ACgen" title="Ossìgen - piemontese" lang="pms" hreflang="pms" data-title="Ossìgen" data-language-autonym="Piemontèis" data-language-local-name="piemontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%A2%DA%A9%D8%B3%DB%8C%D8%AC%D9%86" title="آکسیجن - Western Punjabi" lang="pnb" hreflang="pnb" data-title="آکسیجن" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D8%A7%DA%A9%D8%B3%D9%8A%D8%AC%D9%86" title="اکسيجن - pashto" lang="ps" hreflang="ps" data-title="اکسيجن" data-language-autonym="پښتو" data-language-local-name="pashto" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pt badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://pt.wikipedia.org/wiki/Oxig%C3%A9nio" title="Oxigénio - portoghese" lang="pt" hreflang="pt" data-title="Oxigénio" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Muksichaq" title="Muksichaq - quechua" lang="qu" hreflang="qu" data-title="Muksichaq" data-language-autonym="Runa Simi" data-language-local-name="quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-rm mw-list-item"><a href="https://rm.wikipedia.org/wiki/Oxigen" title="Oxigen - romancio" lang="rm" hreflang="rm" data-title="Oxigen" data-language-autonym="Rumantsch" data-language-local-name="romancio" class="interlanguage-link-target"><span>Rumantsch</span></a></li><li class="interlanguage-link interwiki-ro badge-Q17437798 badge-goodarticle mw-list-item" title="voce di qualità"><a href="https://ro.wikipedia.org/wiki/Oxigen" title="Oxigen - rumeno" lang="ro" hreflang="ro" data-title="Oxigen" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-roa-rup mw-list-item"><a href="https://roa-rup.wikipedia.org/wiki/Oxigenu" title="Oxigenu - arumeno" lang="rup" hreflang="rup" data-title="Oxigenu" data-language-autonym="Armãneashti" data-language-local-name="arumeno" class="interlanguage-link-target"><span>Armãneashti</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9A%D0%B8%D1%81%D0%BB%D0%BE%D1%80%D0%BE%D0%B4" title="Кислород - russo" lang="ru" hreflang="ru" data-title="Кислород" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%9E%D0%BA%D1%81%D0%B8%D0%B3%D0%B5%D0%BD" title="Оксиген - ruteno" lang="rue" hreflang="rue" data-title="Оксиген" data-language-autonym="Русиньскый" data-language-local-name="ruteno" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BB%D1%8B%D0%BA" title="Абалык - sacha" lang="sah" hreflang="sah" data-title="Абалык" data-language-autonym="Саха тыла" data-language-local-name="sacha" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-sat mw-list-item"><a href="https://sat.wikipedia.org/wiki/%E1%B1%B3%E1%B1%A0%E1%B1%A5%E1%B1%A4%E1%B1%A1%E1%B1%9F%E1%B1%B9%E1%B1%B1" title="ᱳᱠᱥᱤᱡᱟᱹᱱ - santali" lang="sat" hreflang="sat" data-title="ᱳᱠᱥᱤᱡᱟᱹᱱ" data-language-autonym="ᱥᱟᱱᱛᱟᱲᱤ" data-language-local-name="santali" class="interlanguage-link-target"><span>ᱥᱟᱱᱛᱟᱲᱤ</span></a></li><li class="interlanguage-link interwiki-sc mw-list-item"><a href="https://sc.wikipedia.org/wiki/Oss%C3%ACgenu" title="Ossìgenu - sardo" lang="sc" hreflang="sc" data-title="Ossìgenu" data-language-autonym="Sardu" data-language-local-name="sardo" class="interlanguage-link-target"><span>Sardu</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Uss%C3%ACgginu" title="Ussìgginu - siciliano" lang="scn" hreflang="scn" data-title="Ussìgginu" data-language-autonym="Sicilianu" data-language-local-name="siciliano" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Oxygen" title="Oxygen - scozzese" lang="sco" hreflang="sco" data-title="Oxygen" data-language-autonym="Scots" data-language-local-name="scozzese" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%A2%DA%AA%D8%B3%D9%8A%D8%AC%D9%86" title="آڪسيجن - sindhi" lang="sd" hreflang="sd" data-title="آڪسيجن" data-language-autonym="سنڌي" data-language-local-name="sindhi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Kiseonik" title="Kiseonik - serbo-croato" lang="sh" hreflang="sh" data-title="Kiseonik" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croato" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%94%E0%B6%9A%E0%B7%8A%E0%B7%83%E0%B7%92%E0%B6%A2%E0%B6%B1%E0%B7%8A" title="ඔක්සිජන් - singalese" lang="si" hreflang="si" data-title="ඔක්සිජන්" data-language-autonym="සිංහල" data-language-local-name="singalese" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Oxygen" title="Oxygen - Simple English" lang="en-simple" hreflang="en-simple" data-title="Oxygen" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Kysl%C3%ADk" title="Kyslík - slovacco" lang="sk" hreflang="sk" data-title="Kyslík" data-language-autonym="Slovenčina" data-language-local-name="slovacco" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-skr mw-list-item"><a href="https://skr.wikipedia.org/wiki/%D8%A2%DA%A9%D8%B3%DB%8C%D8%AC%D9%86" title="آکسیجن - Saraiki" lang="skr" hreflang="skr" data-title="آکسیجن" data-language-autonym="سرائیکی" data-language-local-name="Saraiki" class="interlanguage-link-target"><span>سرائیکی</span></a></li><li class="interlanguage-link interwiki-sl badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://sl.wikipedia.org/wiki/Kisik" title="Kisik - sloveno" lang="sl" hreflang="sl" data-title="Kisik" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-smn mw-list-item"><a href="https://smn.wikipedia.org/wiki/Happi" title="Happi - sami di Inari" lang="smn" hreflang="smn" data-title="Happi" data-language-autonym="Anarâškielâ" data-language-local-name="sami di Inari" class="interlanguage-link-target"><span>Anarâškielâ</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Ogsajiin" title="Ogsajiin - somalo" lang="so" hreflang="so" data-title="Ogsajiin" data-language-autonym="Soomaaliga" data-language-local-name="somalo" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Oksigjeni" title="Oksigjeni - albanese" lang="sq" hreflang="sq" data-title="Oksigjeni" data-language-autonym="Shqip" data-language-local-name="albanese" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9A%D0%B8%D1%81%D0%B5%D0%BE%D0%BD%D0%B8%D0%BA" title="Кисеоник - serbo" lang="sr" hreflang="sr" data-title="Кисеоник" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-stq mw-list-item"><a href="https://stq.wikipedia.org/wiki/Suurstof" title="Suurstof - saterfriesisch" lang="stq" hreflang="stq" data-title="Suurstof" data-language-autonym="Seeltersk" data-language-local-name="saterfriesisch" class="interlanguage-link-target"><span>Seeltersk</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Oksig%C3%A9n" title="Oksigén - sundanese" lang="su" hreflang="su" data-title="Oksigén" data-language-autonym="Sunda" data-language-local-name="sundanese" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv badge-Q17559452 badge-recommendedarticle mw-list-item" title="voce consigliata"><a href="https://sv.wikipedia.org/wiki/Syre" title="Syre - svedese" lang="sv" hreflang="sv" data-title="Syre" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Oksijeni" title="Oksijeni - swahili" lang="sw" hreflang="sw" data-title="Oksijeni" data-language-autonym="Kiswahili" data-language-local-name="swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%92%E0%AE%9F%E0%AF%8D%E0%AE%9A%E0%AE%BF%E0%AE%9A%E0%AE%A9%E0%AF%8D" title="ஒட்சிசன் - tamil" lang="ta" hreflang="ta" data-title="ஒட்சிசன்" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tcy mw-list-item"><a href="https://tcy.wikipedia.org/wiki/%E0%B2%86%E0%B2%AE%E0%B3%8D%E0%B2%B2%E0%B2%9C%E0%B2%A8%E0%B2%95" title="ಆಮ್ಲಜನಕ - tulu" lang="tcy" hreflang="tcy" data-title="ಆಮ್ಲಜನಕ" data-language-autonym="ತುಳು" data-language-local-name="tulu" class="interlanguage-link-target"><span>ತುಳು</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%86%E0%B0%95%E0%B1%8D%E0%B0%B8%E0%B0%BF%E0%B0%9C%E0%B0%A8%E0%B1%8D" title="ఆక్సిజన్ - telugu" lang="te" hreflang="te" data-title="ఆక్సిజన్" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D0%9E%D0%BA%D1%81%D0%B8%D0%B3%D0%B5%D0%BD" title="Оксиген - tagico" lang="tg" hreflang="tg" data-title="Оксиген" data-language-autonym="Тоҷикӣ" data-language-local-name="tagico" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AD%E0%B8%AD%E0%B8%81%E0%B8%8B%E0%B8%B4%E0%B9%80%E0%B8%88%E0%B8%99" title="ออกซิเจน - thailandese" lang="th" hreflang="th" data-title="ออกซิเจน" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Oksihino" title="Oksihino - tagalog" lang="tl" hreflang="tl" data-title="Oksihino" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Oksijen" title="Oksijen - turco" lang="tr" hreflang="tr" data-title="Oksijen" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%9A%D0%B8%D1%81%D0%BB%D0%BE%D1%80%D0%BE%D0%B4" title="Кислород - tataro" lang="tt" hreflang="tt" data-title="Кислород" data-language-autonym="Татарча / tatarça" data-language-local-name="tataro" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-ug mw-list-item"><a href="https://ug.wikipedia.org/wiki/%D8%A6%D9%88%D9%83%D8%B3%D9%89%DA%AF%DB%90%D9%86" title="ئوكسىگېن - uiguro" lang="ug" hreflang="ug" data-title="ئوكسىگېن" data-language-autonym="ئۇيغۇرچە / Uyghurche" data-language-local-name="uiguro" class="interlanguage-link-target"><span>ئۇيغۇرچە / Uyghurche</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9A%D0%B8%D1%81%D0%B5%D0%BD%D1%8C" title="Кисень - ucraino" lang="uk" hreflang="uk" data-title="Кисень" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%A2%DA%A9%D8%B3%DB%8C%D8%AC%D9%86" title="آکسیجن - urdu" lang="ur" hreflang="ur" data-title="آکسیجن" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Kislorod" title="Kislorod - uzbeco" lang="uz" hreflang="uz" data-title="Kislorod" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbeco" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/Os%C3%ACzeno" title="Osìzeno - veneto" lang="vec" hreflang="vec" data-title="Osìzeno" data-language-autonym="Vèneto" data-language-local-name="veneto" class="interlanguage-link-target"><span>Vèneto</span></a></li><li class="interlanguage-link interwiki-vep mw-list-item"><a href="https://vep.wikipedia.org/wiki/Hapanik" title="Hapanik - vepso" lang="vep" hreflang="vep" data-title="Hapanik" data-language-autonym="Vepsän kel’" data-language-local-name="vepso" class="interlanguage-link-target"><span>Vepsän kel’</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Oxy" title="Oxy - vietnamita" lang="vi" hreflang="vi" data-title="Oxy" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-vls mw-list-item"><a href="https://vls.wikipedia.org/wiki/Zuurstof" title="Zuurstof - fiammingo occidentale" lang="vls" hreflang="vls" data-title="Zuurstof" data-language-autonym="West-Vlams" data-language-local-name="fiammingo occidentale" class="interlanguage-link-target"><span>West-Vlams</span></a></li><li class="interlanguage-link interwiki-vo mw-list-item"><a href="https://vo.wikipedia.org/wiki/Loxin" title="Loxin - volapük" lang="vo" hreflang="vo" data-title="Loxin" data-language-autonym="Volapük" data-language-local-name="volapük" class="interlanguage-link-target"><span>Volapük</span></a></li><li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://wa.wikipedia.org/wiki/Ocsidjinne" title="Ocsidjinne - vallone" lang="wa" hreflang="wa" data-title="Ocsidjinne" data-language-autonym="Walon" data-language-local-name="vallone" class="interlanguage-link-target"><span>Walon</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Oksiheno" title="Oksiheno - waray" lang="war" hreflang="war" data-title="Oksiheno" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E6%B0%A7" title="氧 - wu" lang="wuu" hreflang="wuu" data-title="氧" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xal mw-list-item"><a href="https://xal.wikipedia.org/wiki/%D0%9E%D0%BA%D1%81%D0%B8%D2%97%D0%B5%D0%BD" title="Оксиҗен - kalmyk" lang="xal" hreflang="xal" data-title="Оксиҗен" data-language-autonym="Хальмг" data-language-local-name="kalmyk" class="interlanguage-link-target"><span>Хальмг</span></a></li><li class="interlanguage-link interwiki-xh mw-list-item"><a href="https://xh.wikipedia.org/wiki/I-oxygen" title="I-oxygen - xhosa" lang="xh" hreflang="xh" data-title="I-oxygen" data-language-autonym="IsiXhosa" data-language-local-name="xhosa" class="interlanguage-link-target"><span>IsiXhosa</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%9F%E1%83%90%E1%83%9C%E1%83%92%E1%83%91%E1%83%90%E1%83%93%E1%83%98" title="ჟანგბადი - mengrelio" lang="xmf" hreflang="xmf" data-title="ჟანგბადი" data-language-autonym="მარგალური" data-language-local-name="mengrelio" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%96%D7%95%D7%99%D7%A2%D7%A8%D7%A9%D7%98%D7%90%D7%A3" title="זויערשטאף - yiddish" lang="yi" hreflang="yi" data-title="זויערשטאף" data-language-autonym="ייִדיש" data-language-local-name="yiddish" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/%E1%BB%8C%CC%81ks%C3%ADj%C3%ACn" title="Ọ́ksíjìn - yoruba" lang="yo" hreflang="yo" data-title="Ọ́ksíjìn" data-language-autonym="Yorùbá" data-language-local-name="yoruba" class="interlanguage-link-target"><span>Yorùbá</span></a></li><li class="interlanguage-link interwiki-za mw-list-item"><a href="https://za.wikipedia.org/wiki/Yangj" title="Yangj - zhuang" lang="za" hreflang="za" data-title="Yangj" data-language-autonym="Vahcuengh" data-language-local-name="zhuang" class="interlanguage-link-target"><span>Vahcuengh</span></a></li><li class="interlanguage-link interwiki-zgh mw-list-item"><a href="https://zgh.wikipedia.org/wiki/%E2%B5%93%E2%B4%BD%E2%B5%99%E2%B5%89%E2%B5%8A%E2%B5%89%E2%B5%8F" title="ⵓⴽⵙⵉⵊⵉⵏ - tamazight del Marocco standard" lang="zgh" hreflang="zgh" data-title="ⵓⴽⵙⵉⵊⵉⵏ" data-language-autonym="ⵜⴰⵎⴰⵣⵉⵖⵜ ⵜⴰⵏⴰⵡⴰⵢⵜ" data-language-local-name="tamazight del Marocco standard" class="interlanguage-link-target"><span>ⵜⴰⵎⴰⵣⵉⵖⵜ ⵜⴰⵏⴰⵡⴰⵢⵜ</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%B0%A7" title="氧 - cinese" lang="zh" hreflang="zh" data-title="氧" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E6%B0%A7" title="氧 - cinese classico" lang="lzh" hreflang="lzh" data-title="氧" data-language-autonym="文言" data-language-local-name="cinese classico" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Sng-s%C3%B2%CD%98" title="Sng-sò͘ - min nan" lang="nan" hreflang="nan" data-title="Sng-sò͘" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="min nan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E6%B0%A7" title="氧 - cantonese" lang="yue" hreflang="yue" data-title="氧" data-language-autonym="粵語" data-language-local-name="cantonese" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zu mw-list-item"><a href="https://zu.wikipedia.org/wiki/IsOhwe" title="IsOhwe - zulu" lang="zu" hreflang="zu" data-title="IsOhwe" data-language-autonym="IsiZulu" data-language-local-name="zulu" class="interlanguage-link-target"><span>IsiZulu</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q629#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" class="wbc-editpage">Modifica collegamenti</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespace"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Ossigeno" title="Vedi la voce [c]" accesskey="c"><span>Voce</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Discussione:Ossigeno" rel="discussion" title="Vedi le discussioni relative a questa pagina [t]" accesskey="t"><span>Discussione</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Cambia versione linguistica" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">italiano</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visite"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Ossigeno"><span>Leggi</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Ossigeno&veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Ossigeno&action=edit" title="Modifica il wikitesto di questa pagina [e]" accesskey="e"><span>Modifica wikitesto</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Ossigeno&action=history" title="Versioni precedenti di questa pagina [h]" accesskey="h"><span>Cronologia</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Strumenti pagine"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Strumenti" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Strumenti</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Strumenti</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">nascondi</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Altre opzioni" > <div class="vector-menu-heading"> Azioni </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Ossigeno"><span>Leggi</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Ossigeno&veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Ossigeno&action=edit" title="Modifica il wikitesto di questa pagina [e]" accesskey="e"><span>Modifica wikitesto</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Ossigeno&action=history"><span>Cronologia</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generale </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Speciale:PuntanoQui/Ossigeno" title="Elenco di tutte le pagine che sono collegate a questa [j]" accesskey="j"><span>Puntano qui</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Speciale:ModificheCorrelate/Ossigeno" rel="nofollow" title="Elenco delle ultime modifiche alle pagine collegate a questa [k]" accesskey="k"><span>Modifiche correlate</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Speciale:PagineSpeciali" title="Elenco di tutte le pagine speciali [q]" accesskey="q"><span>Pagine speciali</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Ossigeno&oldid=139077929" title="Collegamento permanente a questa versione di questa pagina"><span>Link permanente</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Ossigeno&action=info" title="Ulteriori informazioni su questa pagina"><span>Informazioni pagina</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Speciale:Cita&page=Ossigeno&id=139077929&wpFormIdentifier=titleform" title="Informazioni su come citare questa pagina"><span>Cita questa voce</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Speciale:UrlShortener&url=https%3A%2F%2Fit.wikipedia.org%2Fwiki%2FOssigeno"><span>Ottieni URL breve</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Speciale:QrCode&url=https%3A%2F%2Fit.wikipedia.org%2Fwiki%2FOssigeno"><span>Scarica codice QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Stampa/esporta </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Speciale:Libro&bookcmd=book_creator&referer=Ossigeno"><span>Crea un libro</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Speciale:DownloadAsPdf&page=Ossigeno&action=show-download-screen"><span>Scarica come PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Ossigeno&printable=yes" title="Versione stampabile di questa pagina [p]" accesskey="p"><span>Versione stampabile</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In altri progetti </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Oxygen" hreflang="en"><span>Wikimedia Commons</span></a></li><li class="wb-otherproject-link wb-otherproject-wikiquote mw-list-item"><a href="https://it.wikiquote.org/wiki/Ossigeno" hreflang="it"><span>Wikiquote</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q629" title="Collegamento all'elemento connesso dell'archivio dati [g]" accesskey="g"><span>Elemento Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Strumenti pagine"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aspetto"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aspetto</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">nascondi</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="it" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r130658281">body:not(.skin-minerva) .mw-parser-output .hatnote.nota-disambigua{clear:both;margin-top:0;padding:.05em .5em}</style> <style data-mw-deduplicate="TemplateStyles:r139142988">.mw-parser-output .hatnote-content{align-items:center;display:flex}.mw-parser-output .hatnote-icon{flex-shrink:0}.mw-parser-output .hatnote-icon img{display:flex}.mw-parser-output .hatnote-text{font-style:italic}body:not(.skin-minerva) .mw-parser-output .hatnote{border:1px solid #CCC;display:flex;margin:.5em 0;padding:.2em .5em}body:not(.skin-minerva) .mw-parser-output .hatnote-text{padding-left:.5em}body.skin-minerva .mw-parser-output .hatnote-icon{padding-right:8px}body.skin-minerva .mw-parser-output .hatnote-icon img{height:auto;width:16px}body.skin--responsive .mw-parser-output .hatnote a.new{color:#d73333}body.skin--responsive .mw-parser-output .hatnote a.new:visited{color:#a55858}</style> <div class="hatnote noprint nota-disambigua"> <div class="hatnote-content"><span class="noviewer hatnote-icon" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/18px-Nota_disambigua.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/27px-Nota_disambigua.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/36px-Nota_disambigua.svg.png 2x" data-file-width="200" data-file-height="200" /></span></span> <span class="hatnote-text"><a href="/wiki/Aiuto:Disambiguazione" title="Aiuto:Disambiguazione">Disambiguazione</a> – Se stai cercando altri significati, vedi <b><a href="/wiki/Ossigeno_(disambigua)" class="mw-disambig" title="Ossigeno (disambigua)">Ossigeno (disambigua)</a></b>.</span></div> </div> <table class="infobox sinottico" summary="Tabella sinottica che riassume i principali dati del soggetto" style="width: 300px;"><tbody><tr class="sinottico_testata"><th colspan="2" style="background:#EEEEEE;">Ossigeno</th></tr><tr><td class="sinottico_testo_centrale" colspan="2"> <table border="0" cellpadding="0" cellspacing="1" align="center" style="border-collapse:separate;width:248px;background-color:transparent;"> <tbody><tr> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #a0ffa0;"><a href="/wiki/Idrogeno" title="Idrogeno"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="border:none;width:7px;padding:0;background-color:transparent;"> </td> <td colspan="14" rowspan="5" style="border:none;padding:0;background-color:transparent;">  </td> <td rowspan="3" style="border:none;width:7px;padding:0;background-color:transparent;"> </td> <td colspan="9" rowspan="3" style="border:none;text-align:center;padding:0;background-color:transparent;"> <table align="center" border="0" cellpadding="0" cellspacing="0" style="background-color:transparent;"> <tbody><tr> <td style="font-size:10pt;border:none;padding:0;line-height:1em;background-color:transparent;"><br />8</td> <td style="font-size:16pt;border:none;padding:0;line-height:1em;background-color:transparent;"><b>O</b></td></tr></tbody></table> </td> <td colspan="5" style="border:none;padding:0;background-color:transparent;"> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #c0ffff;"><a href="/wiki/Elio" title="Elio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td></tr> <tr> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff6666;"><a href="/wiki/Litio" title="Litio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffdead;"><a href="/wiki/Berillio" title="Berillio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccc99;"><a href="/wiki/Boro" title="Boro"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #a0ffa0;"><a href="/wiki/Carbonio" title="Carbonio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #a0ffa0;"><a href="/wiki/Azoto" title="Azoto"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #a0ffa0;"><a class="mw-selflink selflink"><span style="float: left; width: 7px; height: 10px; font-size: 7px; line-height: 7px; word-spacing: 3px; cursor: pointer; border: 1px solid black"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffff99;"><a href="/wiki/Fluoro" title="Fluoro"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #c0ffff;"><a href="/wiki/Neon" title="Neon"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td></tr> <tr> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff6666;"><a href="/wiki/Sodio" title="Sodio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffdead;"><a href="/wiki/Magnesio" title="Magnesio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccccc;"><a href="/wiki/Alluminio" title="Alluminio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccc99;"><a href="/wiki/Silicio" title="Silicio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #a0ffa0;"><a href="/wiki/Fosforo" title="Fosforo"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #a0ffa0;"><a href="/wiki/Zolfo" title="Zolfo"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffff99;"><a href="/wiki/Cloro" title="Cloro"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #c0ffff;"><a href="/wiki/Argon" title="Argon"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td></tr> <tr> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff6666;"><a href="/wiki/Potassio" title="Potassio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffdead;"><a href="/wiki/Calcio_(elemento_chimico)" title="Calcio (elemento chimico)"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Scandio" title="Scandio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Titanio" title="Titanio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Vanadio" title="Vanadio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Cromo" title="Cromo"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Manganese" title="Manganese"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Ferro" title="Ferro"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Cobalto" title="Cobalto"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Nichel" title="Nichel"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Rame" title="Rame"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Zinco" title="Zinco"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccccc;"><a href="/wiki/Gallio_(elemento_chimico)" title="Gallio (elemento chimico)"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccc99;"><a href="/wiki/Germanio" title="Germanio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccc99;"><a href="/wiki/Arsenico" title="Arsenico"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #a0ffa0;"><a href="/wiki/Selenio" title="Selenio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffff99;"><a href="/wiki/Bromo" title="Bromo"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #c0ffff;"><a href="/wiki/Kripton" title="Kripton"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td></tr> <tr> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff6666;"><a href="/wiki/Rubidio" title="Rubidio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffdead;"><a href="/wiki/Stronzio" title="Stronzio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Ittrio" title="Ittrio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Zirconio" title="Zirconio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Niobio" title="Niobio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Molibdeno" title="Molibdeno"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Tecnezio" title="Tecnezio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Rutenio" title="Rutenio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Rodio" title="Rodio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Palladio_(elemento_chimico)" title="Palladio (elemento chimico)"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Argento" title="Argento"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Cadmio" title="Cadmio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccccc;"><a href="/wiki/Indio" title="Indio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccccc;"><a href="/wiki/Stagno_(elemento_chimico)" title="Stagno (elemento chimico)"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccc99;"><a href="/wiki/Antimonio" title="Antimonio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccc99;"><a href="/wiki/Tellurio" title="Tellurio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffff99;"><a href="/wiki/Iodio" title="Iodio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #c0ffff;"><a href="/wiki/Xeno" title="Xeno"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td></tr> <tr> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff6666;"><a href="/wiki/Cesio_(elemento_chimico)" class="mw-redirect" title="Cesio (elemento chimico)"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffdead;"><a href="/wiki/Bario" title="Bario"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Lantanio" title="Lantanio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Cerio" title="Cerio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Praseodimio" title="Praseodimio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Neodimio" title="Neodimio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Promezio" title="Promezio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Samario" title="Samario"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Europio" title="Europio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Gadolinio" title="Gadolinio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Terbio" title="Terbio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Disprosio" title="Disprosio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Olmio" title="Olmio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Erbio" title="Erbio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Tulio" title="Tulio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Itterbio" title="Itterbio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffbfff;"><a href="/wiki/Lutezio" title="Lutezio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Afnio" title="Afnio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Tantalio" title="Tantalio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Tungsteno" title="Tungsteno"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Renio" title="Renio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Osmio" title="Osmio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Iridio" title="Iridio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Platino" title="Platino"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Oro" title="Oro"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Mercurio_(elemento_chimico)" title="Mercurio (elemento chimico)"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccccc;"><a href="/wiki/Tallio" title="Tallio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccccc;"><a href="/wiki/Piombo" title="Piombo"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccccc;"><a href="/wiki/Bismuto" title="Bismuto"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #cccc99;"><a href="/wiki/Polonio" title="Polonio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffff99;"><a href="/wiki/Astato" title="Astato"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #c0ffff;"><a href="/wiki/Radon" title="Radon"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td></tr> <tr> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff6666;"><a href="/wiki/Francio" title="Francio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffdead;"><a href="/wiki/Radio_(elemento_chimico)" title="Radio (elemento chimico)"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Attinio" title="Attinio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Torio" title="Torio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Protoattinio" title="Protoattinio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Uranio" title="Uranio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Nettunio" title="Nettunio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Plutonio" title="Plutonio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Americio" title="Americio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Curio" title="Curio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Berkelio" title="Berkelio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Californio" title="Californio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Einsteinio" title="Einsteinio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Fermio" title="Fermio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Mendelevio" title="Mendelevio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Nobelio" title="Nobelio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff99cc;"><a href="/wiki/Laurenzio" title="Laurenzio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Rutherfordio" title="Rutherfordio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Dubnio" title="Dubnio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Seaborgio" title="Seaborgio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Bohrio" title="Bohrio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Hassio" title="Hassio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Meitnerio" title="Meitnerio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Darmstadtio" title="Darmstadtio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Roentgenio" title="Roentgenio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffc0c0;"><a href="/wiki/Copernicio" title="Copernicio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #e0e0e0;"><a href="/wiki/Nihonio" title="Nihonio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #e0e0e0;"><a href="/wiki/Flerovio" title="Flerovio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #e0e0e0;"><a href="/wiki/Moscovio" title="Moscovio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #e0e0e0;"><a href="/wiki/Livermorio" title="Livermorio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #fcfecc;"><a href="/wiki/Tennesso" title="Tennesso"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #e8ffff;"><a href="/wiki/Oganesson" title="Oganesson"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td></tr> <tr> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ff9999;"><a href="/wiki/Ununennio" title="Ununennio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td> <td style="padding: 0; width: 9px; height: 12px; border: none; background-color: #ffeedd;"><a href="/wiki/Unbinilio" title="Unbinilio"><span style="float: left; width: 9px; height: 12px; font-size: 9px; line-height: 9px; word-spacing: 3px; cursor: pointer;"> </span></a> </td></tr></tbody></table> <p><a href="/wiki/Azoto" title="Azoto">azoto</a> ← ossigeno → <a href="/wiki/Fluoro" title="Fluoro">fluoro</a> </p> </td></tr><tr><td class="sinottico_testo_centrale" colspan="2"><div class="center"><b><a href="/wiki/Linea_spettrale" title="Linea spettrale">Linea spettrale</a></b><br /><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Hydrogenglow.jpg" class="mw-file-description" title="Linea spettrale dell'elemento"><img alt="Linea spettrale dell'elemento" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Hydrogenglow.jpg/200px-Hydrogenglow.jpg" decoding="async" width="200" height="200" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Hydrogenglow.jpg/300px-Hydrogenglow.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Hydrogenglow.jpg/400px-Hydrogenglow.jpg 2x" data-file-width="1108" data-file-height="1108" /></a><figcaption>Linea spettrale dell'elemento</figcaption></figure></div> </td></tr><tr class="sinottico_divisione"><th colspan="2" style="background:#EEEEEE;">Generalità</th></tr><tr><th>Nome, simbolo, numero atomico</th><td>ossigeno, O, 8 </td></tr><tr><th><a href="/wiki/Serie_chimica" title="Serie chimica">Serie</a></th><td><a href="/wiki/Non_metallo" title="Non metallo">non metalli</a> </td></tr><tr><th><a href="/wiki/Gruppo_della_tavola_periodica" title="Gruppo della tavola periodica">Gruppo</a>, <a href="/wiki/Periodo_della_tavola_periodica" title="Periodo della tavola periodica">periodo</a>, <a href="/wiki/Blocco_della_tavola_periodica" title="Blocco della tavola periodica">blocco</a></th><td><a href="/wiki/Elementi_del_gruppo_16" title="Elementi del gruppo 16">16 (VIA)</a>, <a href="/wiki/Elementi_del_periodo_2" title="Elementi del periodo 2">2</a>, <a href="/wiki/Elementi_del_blocco_p" class="mw-redirect" title="Elementi del blocco p">p</a> </td></tr><tr><th><a href="/wiki/Densit%C3%A0" title="Densità">Densità</a></th><td>1,429 kg/m³ a <span class="nowrap"><span data-sort-value="7002273000000000000♠"></span>273 <a href="/wiki/Kelvin" title="Kelvin">K</a></span><sup id="cite_ref-thermo_1-0" class="reference"><a href="#cite_note-thermo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr><tr><th>Configurazione elettronica</th><td><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Elektronskal_8.svg" class="mw-file-description" title="Configurazione elettronica"><img alt="Configurazione elettronica" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Elektronskal_8.svg/125px-Elektronskal_8.svg.png" decoding="async" width="125" height="125" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Elektronskal_8.svg/188px-Elektronskal_8.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Elektronskal_8.svg/250px-Elektronskal_8.svg.png 2x" data-file-width="500" data-file-height="500" /></a><figcaption>Configurazione elettronica</figcaption></figure> </td></tr><tr><th><a href="/wiki/Termine_spettroscopico" title="Termine spettroscopico">Termine spettroscopico</a></th><td><sup>3</sup>P<sub>2</sub> </td></tr><tr class="sinottico_divisione"><th colspan="2" style="background:#EEEEEE;">Proprietà atomiche</th></tr><tr><th><a href="/wiki/Peso_atomico" class="mw-redirect" title="Peso atomico">Peso atomico</a></th><td><span class="nowrap"><span data-sort-value="7001159994000000000♠"></span>15,9994 <a href="/wiki/Unit%C3%A0_di_massa_atomica" title="Unità di massa atomica">u</a></span> </td></tr><tr><th><a href="/wiki/Raggio_atomico" title="Raggio atomico">Raggio atomico</a> (calc.)</th><td><span class="nowrap"><span data-sort-value="6989600000000000000♠"></span>60 <a href="/wiki/Metro" title="Metro">pm</a></span> </td></tr><tr><th><a href="/wiki/Raggio_covalente" title="Raggio covalente">Raggio covalente</a></th><td>73 pm </td></tr><tr><th><a href="/wiki/Raggio_di_van_der_Waals" title="Raggio di van der Waals">Raggio di van der Waals</a></th><td>152 pm </td></tr><tr><th><a href="/wiki/Configurazione_elettronica" title="Configurazione elettronica">Configurazione elettronica</a></th><td>[<a href="/wiki/Elio" title="Elio">He</a>]2s<sup>2</sup>2p<sup>4</sup> </td></tr><tr><th><a href="/wiki/Elettrone" title="Elettrone">e<sup>−</sup></a> per <a href="/wiki/Livello_energetico" title="Livello energetico">livello energetico</a></th><td>2, 6 </td></tr><tr><th><a href="/wiki/Stato_di_ossidazione" title="Stato di ossidazione">Stati di ossidazione</a></th><td>0, ±1, ±2 </td></tr><tr><th><a href="/wiki/Cristallo" title="Cristallo">Struttura cristallina</a></th><td><a href="/wiki/Sistema_cubico" title="Sistema cubico">cubica</a> </td></tr><tr class="sinottico_divisione"><th colspan="2" style="background:#EEEEEE;">Proprietà fisiche</th></tr><tr><th><a href="/wiki/Stato_della_materia" title="Stato della materia">Stato della materia</a></th><td><a href="/wiki/Gas" title="Gas">gassoso</a> (<a href="/wiki/Paramagnetismo" title="Paramagnetismo">paramagnetico</a>) </td></tr><tr><th><a href="/wiki/Punto_di_fusione" title="Punto di fusione">Punto di fusione</a></th><td>50,35 <a href="/wiki/Kelvin" title="Kelvin">K</a> (−222,80 <a href="/wiki/Grado_Celsius" title="Grado Celsius">°C</a>) </td></tr><tr><th><a href="/wiki/Punto_di_ebollizione" title="Punto di ebollizione">Punto di ebollizione</a></th><td>90,18 K (−182,97 °C) </td></tr><tr><th><a href="/wiki/Punto_critico_(termodinamica)" title="Punto critico (termodinamica)">Punto critico</a></th><td><span class="nowrap"><span data-sort-value="7002154579999999999♠"></span>−118,57 <a href="/wiki/Grado_Celsius" title="Grado Celsius">°C</a></span> a <span class="nowrap"><span data-sort-value="7006504295000000000♠"></span>5,04295 <a href="/wiki/Pascal_(unit%C3%A0_di_misura)" title="Pascal (unità di misura)">MPa</a></span><sup id="cite_ref-sapio_2-0" class="reference"><a href="#cite_note-sapio-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td></tr><tr><th><a href="/wiki/Punto_triplo" title="Punto triplo">Punto triplo</a></th><td><span class="nowrap"><span data-sort-value="7001543629999999999♠"></span>−218,787 °C</span> a <span class="nowrap"><span data-sort-value="7002151990000000000♠"></span>151,99 Pa</span><sup id="cite_ref-sapio_2-1" class="reference"><a href="#cite_note-sapio-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td></tr><tr><th><a href="/wiki/Volume_molare" title="Volume molare">Volume molare</a></th><td><span class="nowrap"><span data-sort-value="6998173600000000000♠"></span>17,36<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−3</sup> m³/mol</span> </td></tr><tr><th><a href="/wiki/Entalpia_di_vaporizzazione" title="Entalpia di vaporizzazione">Entalpia di vaporizzazione</a></th><td><span class="nowrap"><span data-sort-value="7003340990000000000♠"></span>3,4099 <a href="/wiki/Joule_per_mole" title="Joule per mole">kJ/mol</a></span> </td></tr><tr><th><a href="/wiki/Calore_di_fusione" class="mw-redirect" title="Calore di fusione">Calore di fusione</a></th><td>0,22259 kJ/mol </td></tr><tr><th><a href="/wiki/Velocit%C3%A0_del_suono" title="Velocità del suono">Velocità del suono</a></th><td><span class="nowrap"><span data-sort-value="7002317500000000000♠"></span>317,5 <a href="/wiki/Metro_al_secondo" title="Metro al secondo">m/s</a></span> a <span class="nowrap"><span data-sort-value="7002293000000000000♠"></span>293 K</span> </td></tr><tr class="sinottico_divisione"><th colspan="2" style="background:#EEEEEE;">Altre proprietà</th></tr><tr><th><a href="/wiki/Numero_CAS" title="Numero CAS">Numero CAS</a></th><td><span class="reflink plainlinksneverexpand"><span class="noarchive"><a class="external text" href="https://iw.toolforge.org/magnustools/cas.php?language=it&cas=7782-44-7">7782-44-7</a></span></span> </td></tr><tr><th><a href="/wiki/Elettronegativit%C3%A0" title="Elettronegatività">Elettronegatività</a></th><td>3,44 (<a href="/wiki/Scala_di_Pauling" class="mw-redirect" title="Scala di Pauling">scala di Pauling</a>) </td></tr><tr><th><a href="/wiki/Calore_specifico" title="Calore specifico">Calore specifico</a></th><td>920 J/(kg·K) </td></tr><tr><th><a href="/wiki/Conducibilit%C3%A0_termica" title="Conducibilità termica">Conducibilità termica</a></th><td>0,02674 W/(m·K) </td></tr><tr><th><a href="/wiki/Energia_di_ionizzazione" title="Energia di ionizzazione">Energia di prima ionizzazione</a></th><td><span class="nowrap"><span data-sort-value="7006131390000000000♠"></span>1<span style="margin-left:.25em;">313</span>,9 kJ/mol</span> </td></tr><tr><th>Energia di seconda ionizzazione</th><td><span class="nowrap"><span data-sort-value="7006338830000000000♠"></span>3<span style="margin-left:.25em;">388</span>,3 kJ/mol</span> </td></tr><tr><th>Energia di terza ionizzazione</th><td><span class="nowrap"><span data-sort-value="7006530050000000000♠"></span>5<span style="margin-left:.25em;">300</span>,5 kJ/mol</span> </td></tr><tr><th>Energia di quarta ionizzazione</th><td><span class="nowrap"><span data-sort-value="7006622270000000000♠"></span>6<span style="margin-left:.25em;">222</span>,7 kJ/mol</span> </td></tr><tr><th>Energia di quinta ionizzazione</th><td><span class="nowrap"><span data-sort-value="7006746920000000000♠"></span>7<span style="margin-left:.25em;">469</span>,2 kJ/mol</span> </td></tr><tr class="sinottico_divisione"><th colspan="2" style="background:#EEEEEE;">Isotopi più stabili</th></tr><tr><td class="sinottico_testo_centrale" colspan="2"><table class="wikitable" style="margin: 0;" width="100%"> <tbody><tr><th>iso</th><th>NA</th><th>TD</th><th>DM</th><th>DE</th><th>DP</th></tr> <tr><td><sup>16</sup>O</td><td><b>99,762%</b></td> <td colspan="4">È stabile con 8 neutroni</td></tr><tr><td><sup>17</sup>O</td><td>0,038%</td> <td colspan="4">È stabile con 9 neutroni</td></tr><tr><td><sup>18</sup>O</td><td>0,2%</td> <td colspan="4">È stabile con 10 neutroni</td></tr> </tbody></table> </td></tr><tr class="sinottico_divisione"><th colspan="2" style="background:#EEEEEE;"><small>iso: <a href="/wiki/Isotopo" title="Isotopo">isotopo</a><br />NA: abbondanza in natura<br />TD: <a href="/wiki/Emivita_(fisica)" title="Emivita (fisica)">tempo di dimezzamento</a><br />DM: modalità di decadimento<br />DE: energia di decadimento in MeV<br />DP: prodotto del decadimento</small></th></tr></tbody></table> <p>L'<b>ossigeno</b> è un <a href="/wiki/Elemento_chimico" title="Elemento chimico">elemento chimico</a> con <a href="/wiki/Numero_atomico" title="Numero atomico">numero atomico</a> 8 (<a href="/wiki/Simbolo_chimico" title="Simbolo chimico">simbolo</a> <i>O</i>), il primo del <a href="/wiki/Gruppo_della_tavola_periodica" title="Gruppo della tavola periodica">gruppo</a> 16 del <a href="/wiki/Tavola_periodica_degli_elementi" title="Tavola periodica degli elementi">sistema periodico</a>, facente parte del <a href="/wiki/Blocco_della_tavola_periodica" title="Blocco della tavola periodica">blocco</a> <i>p</i>. È un elemento <a href="/wiki/Non_metallo" title="Non metallo">non metallico</a> altamente reattivo (<a href="/wiki/Ossidante" title="Ossidante">ossidante</a>) che forma facilmente <a href="/wiki/Ossido" title="Ossido">ossidi</a> e altri <a href="/wiki/Composto_chimico" title="Composto chimico">composti</a> con la maggior parte degli elementi.<sup id="cite_ref-webelements.com_3-0" class="reference"><a href="#cite_note-webelements.com-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Per <a href="/wiki/Massa_(fisica)" title="Massa (fisica)">massa</a>, è il terzo elemento più abbondante dell'universo<sup id="cite_ref-thermo_1-1" class="reference"><a href="#cite_note-thermo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> dopo l'<a href="/wiki/Idrogeno" title="Idrogeno">idrogeno</a> e l'<a href="/wiki/Elio" title="Elio">elio</a>.<sup id="cite_ref-webelements.com_3-1" class="reference"><a href="#cite_note-webelements.com-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Il suo <a href="/wiki/Isotopo" title="Isotopo">isotopo</a> più abbondante più stabile ha <a href="/wiki/Numero_di_massa" title="Numero di massa">numero di massa</a> 16. </p><p>A <a href="/wiki/Condizioni_standard" title="Condizioni standard">temperatura e pressione standard</a> due <a href="/wiki/Atomo" title="Atomo">atomi</a> dell'elemento si <a href="/wiki/Legame_chimico" title="Legame chimico">legano</a> per formare l'ossigeno molecolare, o diossigeno (<a href="/wiki/Formula_chimica" title="Formula chimica">formula chimica</a> O<sub>2</sub>), un <a href="/wiki/Gas" title="Gas">gas</a> incolore e inodore che costituisce il 20,8% dell'<a href="/wiki/Atmosfera_terrestre" title="Atmosfera terrestre">atmosfera terrestre</a> (l'ossigeno è chimicamente troppo reattivo per rimanere un elemento libero nell'aria<sup id="cite_ref-ECE500_4-0" class="reference"><a href="#cite_note-ECE500-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>); legato ad altri elementi, è l'elemento chimico più comune della <a href="/wiki/Crosta_terrestre" title="Crosta terrestre">crosta terrestre</a>, rappresentandone circa il 47% della massa<sup id="cite_ref-lanl_5-0" class="reference"><a href="#cite_note-lanl-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>, ed entra inoltre nella molecola dell'acqua. </p><p>L'ossigeno è essenziale per la vita della maggior parte degli esseri viventi in quanto necessario alla <a href="/wiki/Respirazione_(fisiologia_comparata)" title="Respirazione (fisiologia comparata)">respirazione</a>; inoltre, le principali classi di <a href="/wiki/Molecole_organiche" class="mw-redirect" title="Molecole organiche">molecole organiche</a> presenti negli organismi viventi, come le <a href="/wiki/Proteine" title="Proteine">proteine</a>, gli <a href="/wiki/Acidi_nucleici" title="Acidi nucleici">acidi nucleici</a>, i <a href="/wiki/Carboidrati" class="mw-redirect" title="Carboidrati">carboidrati</a> e i <a href="/wiki/Lipidi" title="Lipidi">lipidi</a>, contengono ossigeno. </p><p>Nelle attività umane viene comunemente utilizzato per l'<a href="/wiki/Ossigenoterapia" title="Ossigenoterapia">ossigenoterapia</a>, il <a href="/wiki/Sistema_di_supporto_vitale" title="Sistema di supporto vitale">sistema di supporto vitale</a> degli <a href="/wiki/Aeromobili" class="mw-redirect" title="Aeromobili">aeromobili</a>, dei <a href="/wiki/Sottomarini" class="mw-redirect" title="Sottomarini">sottomarini</a> e dei <a href="/wiki/Veicolo_spaziale" title="Veicolo spaziale">veicoli spaziali</a>, per le attività <a href="/wiki/Subacquea" title="Subacquea">subacquee</a> ricreative, come <a href="/wiki/Propellente" title="Propellente">propellente</a> per i <a href="/wiki/Razzo" title="Razzo">razzi</a>. Entra inoltre nei processi di produzione dell'<a href="/wiki/Acciaio" title="Acciaio">acciaio</a> e della <a href="/wiki/Plastica" class="mw-redirect" title="Plastica">plastica</a>, nella <a href="/wiki/Brasatura" title="Brasatura">brasatura</a>, <a href="/wiki/Saldatura" title="Saldatura">saldatura</a> e il taglio di alcuni metalli. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Storia">Storia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=1" title="Modifica la sezione Storia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=1" title="Edit section's source code: Storia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'ossigeno fu scoperto dal farmacista svedese <a href="/wiki/Carl_Wilhelm_Scheele" class="mw-redirect" title="Carl Wilhelm Scheele">Carl Wilhelm Scheele</a> nel 1771, ma la scoperta non venne immediatamente riconosciuta; invece quella fatta nel 1774 da <a href="/wiki/Joseph_Priestley" title="Joseph Priestley">Joseph Priestley</a> ricevette subito riconoscimento pubblico.<sup id="cite_ref-thermo_1-2" class="reference"><a href="#cite_note-thermo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Nel 1777 <a href="/wiki/Antoine-Laurent_de_Lavoisier" title="Antoine-Laurent de Lavoisier">Antoine-Laurent de Lavoisier</a> diede il nome all'elemento<sup id="cite_ref-mellor_6-0" class="reference"><a href="#cite_note-mellor-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>, che deriva dal <a href="/wiki/Lingua_greca_antica" title="Lingua greca antica">greco</a> ὀξύς, <i>oxýs</i>, "acido" (letteralmente: "appuntito") e la radice γεν-, <i>ghen-</i>, che significa "generare".<sup id="cite_ref-thermo_1-3" class="reference"><a href="#cite_note-thermo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Rolla283_7-0" class="reference"><a href="#cite_note-Rolla283-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> Questo perché al momento della denominazione si riteneva erroneamente che entrasse nella composizione di tutti gli <a href="/wiki/Acido" title="Acido">acidi</a>. Nello stesso anno Scheele lo riconobbe come un componente dell'<a href="/wiki/Aria" title="Aria">aria</a>. Nel 1781 Lavoisier ne accertò la funzione per i fenomeni di <a href="/wiki/Respirazione_(fisiologia_comparata)" title="Respirazione (fisiologia comparata)">respirazione</a> e <a href="/wiki/Combustione" title="Combustione">combustione</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Isotopi">Isotopi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=2" title="Modifica la sezione Isotopi" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=2" title="Edit section's source code: Isotopi"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'ossigeno ha tre <a href="/wiki/Isotopo" title="Isotopo">isotopi</a> stabili (<a href="/wiki/Numero_di_massa" title="Numero di massa">numero di massa</a> 16, 17 e 18) e dieci <a href="/wiki/Radionuclide" title="Radionuclide">radioattivi</a> con <a href="/wiki/Emivita_(fisica)" title="Emivita (fisica)">emivite</a> molto brevi, inferiori ai tre minuti. </p><p>La massa atomica dell'isotopo <sup>16</sup>O, presente per circa il 99%, è in realtà inferiore a 16, perché come riferimento per il calcolo delle masse è stato scelto il carbonio-12, e nella sintesi degli elementi più pesanti, per motivi <a href="/wiki/Relativit%C3%A0_ristretta" title="Relatività ristretta">relativistici</a>, si ha un difetto di massa causato alla <a href="/wiki/Fusione_nucleare" title="Fusione nucleare">fusione nucleare</a>, con liberazione di energia. </p> <div class="mw-heading mw-heading2"><h2 id="Allotropi">Allotropi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=3" title="Modifica la sezione Allotropi" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=3" title="Edit section's source code: Allotropi"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Ossigeno_atomico">Ossigeno atomico</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=4" title="Modifica la sezione Ossigeno atomico" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=4" title="Edit section's source code: Ossigeno atomico"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'ossigeno atomico, indicato come O(<sup>3</sup>P) oppure O(3P)<sup id="cite_ref-ACS1_8-0" class="reference"><a href="#cite_note-ACS1-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup>, è molto reattivo, siccome i singoli atomi di ossigeno tendono a legarsi velocemente alle molecole vicine. Sulla superficie terrestre non può esistere a lungo, ma nell'<a href="/wiki/Orbita_terrestre_bassa" title="Orbita terrestre bassa">orbita terrestre bassa</a>, la presenza di <a href="/wiki/Radiazione_ultravioletta" title="Radiazione ultravioletta">radiazione ultravioletta</a> risulta in un'<a href="/wiki/Atmosfera" title="Atmosfera">atmosfera</a> in cui il 96% dell'ossigeno è in forma atomica.<sup id="cite_ref-ACS1_8-1" class="reference"><a href="#cite_note-ACS1-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-nasas11_9-0" class="reference"><a href="#cite_note-nasas11-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>L'ossigeno atomico è stato rilevato su <a href="/wiki/Marte_(astronomia)" title="Marte (astronomia)">Marte</a> dalle sonde <a href="/wiki/Programma_Mariner" title="Programma Mariner">Mariner</a> e <a href="/wiki/Programma_Viking" title="Programma Viking">Viking</a>, e dall'osservatorio <a href="/wiki/Stratospheric_Observatory_for_Infrared_Astronomy" title="Stratospheric Observatory for Infrared Astronomy">SOFIA</a>.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Ossigeno_biatomico">Ossigeno biatomico</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=5" title="Modifica la sezione Ossigeno biatomico" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=5" title="Edit section's source code: Ossigeno biatomico"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A <a href="/wiki/Condizioni_standard" title="Condizioni standard">temperatura e pressione standard</a>, l'ossigeno si trova in forma di <a href="/wiki/Gas" title="Gas">gas</a> costituito da due <a href="/wiki/Atomo" title="Atomo">atomi</a> (ossigeno biatomico). Si indica come: O<sub>2</sub> (<a href="/wiki/Numero_CAS" title="Numero CAS">numero CAS</a>: <span class="reflink plainlinksneverexpand"><span class="noarchive"><a class="external text" href="https://iw.toolforge.org/magnustools/cas.php?language=it&cas=7782-44-7">7782-44-7</a></span></span>). Questa <a href="/wiki/Sostanza_chimica" class="mw-redirect" title="Sostanza chimica">sostanza</a> è un importante componente dell'<a href="/wiki/Aria" title="Aria">aria</a>, venendo costantemente prodotta nella <a href="/wiki/Fotosintesi_clorofilliana" title="Fotosintesi clorofilliana">fotosintesi clorofilliana</a> delle <a href="/wiki/Plant%C3%A6" class="mw-redirect" title="Plantæ">piante</a> dall'acqua e dall'<a href="/wiki/Anidride_carbonica" title="Anidride carbonica">anidride carbonica</a>, ed è necessaria per la <a href="/wiki/Respirazione_(fisiologia_comparata)" title="Respirazione (fisiologia comparata)">respirazione</a> degli esseri viventi. </p><p>La <a href="/wiki/Specie_chimica" title="Specie chimica">specie</a> O<sub>2</sub> viene frequentemente e impropriamente chiamata "ossigeno" per <a href="/wiki/Sineddoche" title="Sineddoche">sineddoche</a>; per una nomenclatura univoca non ambigua si possono utilizzare, oltre a ossigeno biatomico, anche i seguenti termini: ossigeno molecolare, ossigeno diatomico e diossigeno </p><p>L'ossigeno biatomico O<sub>2</sub>, allo stato <a href="/wiki/Liquido" title="Liquido">liquido</a> e a quello <a href="/wiki/Solido" title="Solido">solido</a>, ha colore azzurro ed è altamente <a href="/wiki/Paramagnetismo" title="Paramagnetismo">paramagnetico</a>.<sup id="cite_ref-thermo_1-4" class="reference"><a href="#cite_note-thermo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> La <a href="/wiki/Teoria_degli_orbitali_molecolari" title="Teoria degli orbitali molecolari">teoria degli orbitali molecolari</a> ha spiegato il fenomeno del paramagnetismo e ha confermato che il legame è da considerarsi doppio: i due elettroni meno legati in O<sub>2</sub> occupano orbitali degeneri di simmetria π ed hanno <a href="/wiki/Spin" title="Spin">spin</a> paralleli. Ciò porta ad uno stato fondamentale di <a href="/wiki/Molteplicit%C3%A0_di_spin" title="Molteplicità di spin">tripletto</a> che ha come conseguenza una straordinaria inerzia cinetica nelle reazioni di <a href="/wiki/Ossidazione" title="Ossidazione">ossidazione</a> di molecole organiche <a href="/wiki/Diamagnetismo" title="Diamagnetismo">diamagnetiche</a> perché queste reazioni avvengono senza la conservazione del numero quantico totale di spin. </p> <div class="mw-heading mw-heading3"><h3 id="Ozono">Ozono</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=6" title="Modifica la sezione Ozono" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=6" title="Edit section's source code: Ozono"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r130657691">body:not(.skin-minerva) .mw-parser-output .vedi-anche{font-size:95%}</style><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r139142988"> <div class="hatnote noprint vedi-anche"> <div class="hatnote-content"><span class="noviewer hatnote-icon" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/18px-Magnifying_glass_icon_mgx2.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/27px-Magnifying_glass_icon_mgx2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/36px-Magnifying_glass_icon_mgx2.svg.png 2x" data-file-width="286" data-file-height="280" /></span></span> <span class="hatnote-text">Lo stesso argomento in dettaglio: <b><a href="/wiki/Ozono" title="Ozono">Ozono</a></b>.</span></div> </div> <p>Un altro <a href="/wiki/Allotropia_(chimica)" title="Allotropia (chimica)">allotropo</a> dell'ossigeno è l'<a href="/wiki/Ozono" title="Ozono">ozono</a> (O<sub>3</sub>), un gas in grado di assorbire notevolmente le <a href="/wiki/Radiazioni_ultraviolette" class="mw-redirect" title="Radiazioni ultraviolette">radiazioni ultraviolette</a>. Per questa sua proprietà lo <a href="/wiki/Strato_di_ozono" class="mw-redirect" title="Strato di ozono">strato di ozono</a> presente ad alta quota aiuta a proteggere la <a href="/wiki/Biosfera" title="Biosfera">biosfera</a> da queste radiazioni. Tuttavia vicino alla superficie terrestre l'ozono, che è un sottoprodotto dello <a href="/wiki/Smog" title="Smog">smog</a>, è considerato un inquinante essendo un <a href="/wiki/Gas_serra" title="Gas serra">gas serra</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Tetraossigeno">Tetraossigeno</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=7" title="Modifica la sezione Tetraossigeno" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=7" title="Edit section's source code: Tetraossigeno"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r130657691"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r139142988"> <div class="hatnote noprint vedi-anche"> <div class="hatnote-content"><span class="noviewer hatnote-icon" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/18px-Magnifying_glass_icon_mgx2.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/27px-Magnifying_glass_icon_mgx2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/36px-Magnifying_glass_icon_mgx2.svg.png 2x" data-file-width="286" data-file-height="280" /></span></span> <span class="hatnote-text">Lo stesso argomento in dettaglio: <b><a href="/wiki/Tetraossigeno" title="Tetraossigeno">Tetraossigeno</a></b>.</span></div> </div> <p>Il tetraossigeno è una delle forme allotropiche nelle quali può essere trovato l'ossigeno. </p><p>La molecola del tetraossigeno (O<sub>4</sub>) era stata teorizzata nel 1924 da Gilbert Lewis, che la propose come una spiegazione al fatto che l'ossigeno liquido non obbedisce alla <a href="/wiki/Legge_di_Curie" title="Legge di Curie">Legge di Curie</a>. Oggi si è scoperto che Lewis si sbagliava, sebbene non si fosse allontanato molto dalla realtà: le simulazioni al computer mostrano che benché non vi siano molecole stabili di O<sub>4</sub> nell'ossigeno liquido, le molecole di O<sub>2</sub> tendono ad associarsi in coppie con spin antiparallelo, formando molecole temporaneamente stabili di O<sub>4</sub>. </p><p>Nel 1999 i ricercatori pensarono che l'ossigeno solido esistesse alla fase-ε come O<sub>4</sub>, scoprendo solo nel 2006 che in realtà è una forma di ossigeno octamolecolare. </p><p>La struttura del tetraossigeno non è ancora del tutto chiarita. Anche un gruppo di studio della Sapienza Università di Roma ha condotto nel 2001 studi per investigare la struttura dell'O<sub>4</sub>. </p> <div class="mw-heading mw-heading2"><h2 id="Disponibilità"><span id="Disponibilit.C3.A0"></span>Disponibilità</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=8" title="Modifica la sezione Disponibilità" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=8" title="Edit section's source code: Disponibilità"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'ossigeno è l'elemento più abbondante della <a href="/wiki/Crosta_terrestre" title="Crosta terrestre">crosta terrestre</a><sup id="cite_ref-Rolla284_11-0" class="reference"><a href="#cite_note-Rolla284-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup>. L'ossigeno forma l'87% degli <a href="/wiki/Oceano" title="Oceano">oceani</a> in quanto componente dell'<a href="/wiki/Acqua" title="Acqua">acqua</a> (H<sub>2</sub>O) e il 21% dell'<a href="/wiki/Atmosfera_terrestre" title="Atmosfera terrestre">atmosfera terrestre</a> come ossigeno molecolare O<sub>2</sub> o come <a href="/wiki/Ozono" title="Ozono">ozono</a> O<sub>3</sub>. I composti di ossigeno, in particolare ossidi metallici, silicati (SiO<span style="display:-moz-inline-box;-moz-box-orient:vertical;display:inline-block;vertical-align:bottom;min-height:1em;font-size:80%;line-height:1;margin-bottom:-0.1em;overflow:visible;text-align:left"><span style="display:block;min-height:1em;margin-top:-1.1em;line-height:1;background:transparent;overflow:visible">4−</span><span style="display:block;min-height:1em;background:transparent;line-height:1;overflow:visible">4</span></span>) e carbonati (CO<span style="display:-moz-inline-box;-moz-box-orient:vertical;display:inline-block;vertical-align:bottom;min-height:1em;font-size:80%;line-height:1;margin-bottom:-0.1em;overflow:visible;text-align:left"><span style="display:block;min-height:1em;margin-top:-1.1em;line-height:1;background:transparent;overflow:visible">2−</span><span style="display:block;min-height:1em;background:transparent;line-height:1;overflow:visible">3</span></span>), si trovano comunemente nelle rocce e nel terreno. L'<a href="/wiki/Ghiaccio" title="Ghiaccio">acqua ghiacciata</a> è un <a href="/wiki/Solido" title="Solido">solido</a> comune sui <a href="/wiki/Pianeta" title="Pianeta">pianeti</a> e le <a href="/wiki/Cometa" title="Cometa">comete</a>. I composti di ossigeno si trovano in tutto l'universo e lo <a href="/wiki/Spettro_elettromagnetico" title="Spettro elettromagnetico">spettro</a> dell'ossigeno è spesso rintracciabile nelle stelle. Di solito l'ossigeno è molto scarso nei <a href="/wiki/Gigante_gassoso" title="Gigante gassoso">pianeti gassosi</a>. </p> <figure typeof="mw:File/Thumb"><a href="/wiki/File:WOA05_sea-surf_O2_AYool.png" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/WOA05_sea-surf_O2_AYool.png/331px-WOA05_sea-surf_O2_AYool.png" decoding="async" width="331" height="233" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/WOA05_sea-surf_O2_AYool.png/497px-WOA05_sea-surf_O2_AYool.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3b/WOA05_sea-surf_O2_AYool.png/662px-WOA05_sea-surf_O2_AYool.png 2x" data-file-width="1612" data-file-height="1133" /></a><figcaption> O<sub>2</sub> disciolto in corrispondenza della superficie delle acque (dati del 2005). Si nota che nelle regioni polari, dove l'acqua è più fredda, il contenuto di O<sub>2</sub> disciolto è maggiore (in termini tecnici, il sistema acqua-ossigeno ha <a href="/wiki/Solubilit%C3%A0#Influenza_della_temperatura" title="Solubilità">solubilità inversa</a>).</figcaption></figure> <p>Oltre che nella molecola O<sub>2</sub>, l'ossigeno si può trovare in natura sotto forma di <a href="/wiki/Ozono" title="Ozono">ozono</a> (O<sub>3</sub>): esso viene formato da <a href="/wiki/Ionizzazione_dei_gas" title="Ionizzazione dei gas">scariche elettrostatiche</a> in presenza di ossigeno molecolare.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> Un dimero della molecola di ossigeno (O<sub>2</sub>)<sub>2</sub> si trova come componente minore nell'O<sub>2</sub> liquido. </p><p>L'ossigeno non si trova solo sulla Terra: è infatti il terzo elemento più abbondante nel <a href="/wiki/Sole" title="Sole">Sole</a>,<sup id="cite_ref-thermo_1-5" class="reference"><a href="#cite_note-thermo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> ed è presente anche su Marte (dove la sua abbondanza nell'<a href="/wiki/Atmosfera_marziana" class="mw-redirect" title="Atmosfera marziana">atmosfera marziana</a> è dello 0,15%<sup id="cite_ref-thermo_1-6" class="reference"><a href="#cite_note-thermo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>). </p> <div class="mw-heading mw-heading2"><h2 id="Produzione">Produzione</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=9" title="Modifica la sezione Produzione" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=9" title="Edit section's source code: Produzione"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Preparazione_in_laboratorio">Preparazione in laboratorio</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=10" title="Modifica la sezione Preparazione in laboratorio" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=10" title="Edit section's source code: Preparazione in laboratorio"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La preparazione dell'ossigeno biatomico O<sub>2</sub> in <a href="/wiki/Laboratorio_chimico" title="Laboratorio chimico">laboratorio</a> avviene attraverso <a href="/wiki/Reazione_chimica" title="Reazione chimica">reazioni</a> <a href="/wiki/Processo_endotermico" title="Processo endotermico">endotermiche</a> che coinvolgono composti ossigenati, ad esempio:<sup id="cite_ref-thermo_1-7" class="reference"><a href="#cite_note-thermo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Rolla285_13-0" class="reference"><a href="#cite_note-Rolla285-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {2KClO3 -> 2KCl + 3O2}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mspace width="thinmathspace" /> <msubsup> <mtext>KClO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> <mo stretchy="false">⟶</mo> <mn>2</mn> <mspace width="thinmathspace" /> <mtext>KCl</mtext> <mo>+</mo> <mn>3</mn> <mspace width="thinmathspace" /> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {2KClO3 -> 2KCl + 3O2}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6edd400915ed84aa7bf36a09b3902369df658ab7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:26.576ex; height:2.843ex;" alt="{\displaystyle {\ce {2KClO3 -> 2KCl + 3O2}}}"></span></dd></dl> <p>questa reazione ha carattere esplosivo per cui viene condotta a bassa temperatura su catalizzatore a base di <a href="/wiki/Diossido_di_manganese" title="Diossido di manganese">biossido di manganese</a> (MnO<sub>2</sub>).<sup id="cite_ref-thermo_1-8" class="reference"><a href="#cite_note-thermo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Rolla285_13-1" class="reference"><a href="#cite_note-Rolla285-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p><p>Si ha inoltre produzione di ossigeno biatomico durante il processo di <a href="/wiki/Elettrolisi_dell%27acqua" title="Elettrolisi dell'acqua">elettrolisi dell'acqua</a> da cui si ottiene anche <a href="/wiki/Idrogeno" title="Idrogeno">idrogeno</a> biatomico gassoso H<sub>2</sub>. </p> <div class="mw-heading mw-heading3"><h3 id="Preparazione_industriale">Preparazione industriale</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=11" title="Modifica la sezione Preparazione industriale" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=11" title="Edit section's source code: Preparazione industriale"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r130657691"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r139142988"> <div class="hatnote noprint vedi-anche"> <div class="hatnote-content"><span class="noviewer hatnote-icon" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/18px-Magnifying_glass_icon_mgx2.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/27px-Magnifying_glass_icon_mgx2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/36px-Magnifying_glass_icon_mgx2.svg.png 2x" data-file-width="286" data-file-height="280" /></span></span> <span class="hatnote-text">Lo stesso argomento in dettaglio: <b><a href="/wiki/Frazionamento_dell%27aria" title="Frazionamento dell'aria">Frazionamento dell'aria</a></b>.</span></div> </div> <p>A livello industriale è possibile ottenere ossigeno biatomico attraverso: </p> <ul><li>separazione criogenica dell'aria;<sup id="cite_ref-Ull4.1_14-0" class="reference"><a href="#cite_note-Ull4.1-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup></li> <li>separazione dell'aria per <a href="/wiki/Adsorbimento" title="Adsorbimento">adsorbimento</a>;<sup id="cite_ref-Ull4.2_15-0" class="reference"><a href="#cite_note-Ull4.2-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup></li> <li>separazione dell'aria per <a href="/wiki/Processo_a_membrana" title="Processo a membrana">filtrazione a membrana</a>.<sup id="cite_ref-Ull4.3_16-0" class="reference"><a href="#cite_note-Ull4.3-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup></li></ul> <p>Il processo di separazione criogenica dell'aria, messa a punto tra il <a href="/wiki/1901" title="1901">1901</a> e il <a href="/wiki/1910" title="1910">1910</a> dall'ingegnere tedesco <a href="/wiki/Carl_von_Linde" title="Carl von Linde">Carl von Linde</a>,<sup id="cite_ref-Ull4.1_14-1" class="reference"><a href="#cite_note-Ull4.1-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> prevede la <a href="/wiki/Distillazione_frazionata" title="Distillazione frazionata">distillazione frazionata</a> dell'<a href="/wiki/Aria" title="Aria">aria</a> liquida che è costituita principalmente da <a href="/wiki/Azoto" title="Azoto">azoto</a> molecolare N<sub>2</sub> e ossigeno molecolare O<sub>2</sub>. Questa <a href="/wiki/Operazione_unitaria" title="Operazione unitaria">operazione unitaria</a> viene svolta intorno a 77,35 <a href="/wiki/Kelvin" title="Kelvin">K</a> (−195,80 <a href="/wiki/Grado_Celsius" title="Grado Celsius">°C</a>), in quanto a questa temperatura l'ossigeno biatomico è liquido mentre l'azoto molecolare è gassoso per cui è possibile separarli.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Coldbox.JPG" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Coldbox.JPG/310px-Coldbox.JPG" decoding="async" width="310" height="233" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Coldbox.JPG/465px-Coldbox.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Coldbox.JPG/620px-Coldbox.JPG 2x" data-file-width="3488" data-file-height="2616" /></a><figcaption>Apparecchiature per la produzione di ossigeno biatomico per separazione criogenica dell'aria.</figcaption></figure> <div class="mw-heading mw-heading2"><h2 id="Composti">Composti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=12" title="Modifica la sezione Composti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=12" title="Edit section's source code: Composti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A causa della sua <a href="/wiki/Elettronegativit%C3%A0" title="Elettronegatività">elettronegatività</a> l'ossigeno forma legami chimici con quasi tutti gli elementi e questa è l'origine della definizione di "ossidazione". Gli unici elementi chimici che sfuggono l'ossidazione sono <a href="/wiki/Elio" title="Elio">elio</a>, <a href="/wiki/Neon" title="Neon">neon</a> e <a href="/wiki/Argon" title="Argon">argon</a>.<sup id="cite_ref-Rolla284_11-1" class="reference"><a href="#cite_note-Rolla284-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p><p>I minerali più abbondanti presenti sulla crosta terrestre sono formati da <a href="/wiki/Silicio" title="Silicio">silicio</a> e ossigeno nella forma di vari composti solidi (come il <a href="/wiki/Quarzo" title="Quarzo">quarzo</a>), mentre negli strati interni del nucleo e del mantello lo stato fisico cambia a causa della pressione e delle elevate temperature. </p><p>L'ossigeno entra nella composizione di molte sostanze organiche e inorganiche. In natura può formare al massimo 2 legami <a href="/wiki/Legame_covalente" title="Legame covalente">covalenti</a>. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Rust_screw.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Rust_screw.jpg/180px-Rust_screw.jpg" decoding="async" width="180" height="135" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Rust_screw.jpg/270px-Rust_screw.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Rust_screw.jpg/360px-Rust_screw.jpg 2x" data-file-width="1024" data-file-height="768" /></a><figcaption>Gli ossidi, come la <a href="/wiki/Ruggine" title="Ruggine">ruggine</a>, si formano quando l'ossigeno reagisce con altri elementi.</figcaption></figure> <p>L'ossigeno si lega in modi diversi a seconda dell'elemento e delle condizioni: crea infatti <a href="/wiki/Ossido" title="Ossido">ossidi</a>, <a href="/wiki/Perossidi" title="Perossidi">perossidi</a>, <a href="/wiki/Superossido" title="Superossido">superossidi</a> o <a href="/wiki/Idrossido" title="Idrossido">idrossidi</a>. L'ossido più comune è il monossido di diidrogeno, l'<a href="/wiki/Acqua" title="Acqua">acqua</a> (H<sub>2</sub>O). Altri esempi includono i composti di carbonio e ossigeno quali: il <a href="/wiki/Anidride_carbonica" title="Anidride carbonica">biossido di carbonio</a> (CO<sub>2</sub>), gli <a href="/wiki/Alcoli" title="Alcoli">alcoli</a> (R-OH), le <a href="/wiki/Aldeidi" title="Aldeidi">aldeidi</a> (R-CHO), e gli <a href="/wiki/Acidi_carbossilici" title="Acidi carbossilici">acidi carbossilici</a> (R-COOH). </p><p>Anioni ossigenati, quali i <a href="/wiki/Clorato" title="Clorato">clorati</a> (ClO<span style="display:-moz-inline-box;-moz-box-orient:vertical;display:inline-block;vertical-align:bottom;min-height:1em;font-size:80%;line-height:1;margin-bottom:-0.1em;overflow:visible;text-align:left"><span style="display:block;min-height:1em;margin-top:-1.1em;line-height:1;background:transparent;overflow:visible">−</span><span style="display:block;min-height:1em;background:transparent;line-height:1;overflow:visible">3</span></span>), i <a href="/wiki/Perclorato" title="Perclorato">perclorati</a> (ClO<span style="display:-moz-inline-box;-moz-box-orient:vertical;display:inline-block;vertical-align:bottom;min-height:1em;font-size:80%;line-height:1;margin-bottom:-0.1em;overflow:visible;text-align:left"><span style="display:block;min-height:1em;margin-top:-1.1em;line-height:1;background:transparent;overflow:visible">−</span><span style="display:block;min-height:1em;background:transparent;line-height:1;overflow:visible">4</span></span>), i <a href="/wiki/Cromato" title="Cromato">cromati</a> (CrO<span style="display:-moz-inline-box;-moz-box-orient:vertical;display:inline-block;vertical-align:bottom;min-height:1em;font-size:80%;line-height:1;margin-bottom:-0.1em;overflow:visible;text-align:left"><span style="display:block;min-height:1em;margin-top:-1.1em;line-height:1;background:transparent;overflow:visible">2−</span><span style="display:block;min-height:1em;background:transparent;line-height:1;overflow:visible">4</span></span>), i <a href="/wiki/Cromato" title="Cromato">dicromati</a> (Cr<sub>2</sub>O<span style="display:-moz-inline-box;-moz-box-orient:vertical;display:inline-block;vertical-align:bottom;min-height:1em;font-size:80%;line-height:1;margin-bottom:-0.1em;overflow:visible;text-align:left"><span style="display:block;min-height:1em;margin-top:-1.1em;line-height:1;background:transparent;overflow:visible">2−</span><span style="display:block;min-height:1em;background:transparent;line-height:1;overflow:visible">7</span></span>), i <a href="/wiki/Permanganato" title="Permanganato">permanganati</a> (MnO<span style="display:-moz-inline-box;-moz-box-orient:vertical;display:inline-block;vertical-align:bottom;min-height:1em;font-size:80%;line-height:1;margin-bottom:-0.1em;overflow:visible;text-align:left"><span style="display:block;min-height:1em;margin-top:-1.1em;line-height:1;background:transparent;overflow:visible">−</span><span style="display:block;min-height:1em;background:transparent;line-height:1;overflow:visible">4</span></span>) e i <a href="/wiki/Nitrato" title="Nitrato">nitrati</a> (NO<span style="display:-moz-inline-box;-moz-box-orient:vertical;display:inline-block;vertical-align:bottom;min-height:1em;font-size:80%;line-height:1;margin-bottom:-0.1em;overflow:visible;text-align:left"><span style="display:block;min-height:1em;margin-top:-1.1em;line-height:1;background:transparent;overflow:visible">−</span><span style="display:block;min-height:1em;background:transparent;line-height:1;overflow:visible">3</span></span>), sono forti agenti ossidanti. Molti metalli si legano ad atomi di ossigeno generando vari composti, per esempio il <a href="/wiki/Ferro" title="Ferro">ferro</a> dà luogo all'<a href="/wiki/Ossido_ferrico" title="Ossido ferrico">ossido di ferro(3+)</a> (Fe<sub>2</sub>O<sub>3</sub>), comunemente chiamato <a href="/wiki/Ruggine" title="Ruggine">ruggine</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Applicazioni">Applicazioni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=13" title="Modifica la sezione Applicazioni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=13" title="Edit section's source code: Applicazioni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'ossigeno trova un impiego considerevole come <a href="/wiki/Ossidante" title="Ossidante">ossidante</a> e <a href="/wiki/Comburente" title="Comburente">comburente</a>;<sup id="cite_ref-Rolla284_11-2" class="reference"><a href="#cite_note-Rolla284-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> solo il <a href="/wiki/Fluoro" title="Fluoro">fluoro</a> possiede un'<a href="/wiki/Elettronegativit%C3%A0" title="Elettronegatività">elettronegatività</a> superiore.<sup id="cite_ref-Rolla283_7-1" class="reference"><a href="#cite_note-Rolla283-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><br />L'ossigeno biatomico O<sub>2</sub> è utilizzato in forma liquida come ossidante nella <a href="/wiki/Propulsione_spaziale" title="Propulsione spaziale">propulsione dei razzi</a>; è essenziale per la <a href="/wiki/Respirazione_(fisiologia_comparata)" title="Respirazione (fisiologia comparata)">respirazione</a> e quindi viene utilizzato in <a href="/wiki/Medicina" title="Medicina">medicina</a>; viene utilizzato come riserva d'aria negli <a href="/wiki/Aeroplano" title="Aeroplano">aeroplani</a> o per le <a href="/wiki/Arrampicata" title="Arrampicata">ascensioni alpinistiche</a> ad alta quota; è usato nella <a href="/wiki/Saldatura" title="Saldatura">saldatura</a> e nella produzione di <a href="/wiki/Acciaio" title="Acciaio">acciaio</a> e <a href="/wiki/Metanolo" title="Metanolo">metanolo</a>. L'ossigeno o l'aria vengono utilizzati per la produzione di acido acrilico<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup>, acrilonitrile<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup>, acido benzoico<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> e perossido di idrogeno<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup>. L'ossigeno è l'ossidante utilizzato nelle <a href="/wiki/Pila_a_combustibile" title="Pila a combustibile">pila a combustibile</a>. Viene anche utilizzato per rimuovere selettivamente la CO dall'H2 preparato mediante steam reforming<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup>. Anche i processi di ossidazione sono di importanza cruciale nella rimozione degli inquinanti<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup>. </p><p>Per la sua proprietà di rimanere allo stato liquido se mantenuto a una pressione blanda (<span class="nowrap"><span data-sort-value="7005400000000000000♠"></span>4 <a href="/wiki/Bar_(unit%C3%A0_di_misura)" title="Bar (unità di misura)">bar</a></span>), può venire stoccato in grandi quantità in bombole opportunamente predisposte; attraverso un corpo vaporizzante (o riscaldatore), viene poi gassificato per essere immesso in linee di distribuzione in forma gassosa. </p><p>Una delle applicazioni più importanti dell'O<sub>2</sub> in ambito terapeutico, ospedaliero e <a href="/wiki/Subacquea" title="Subacquea">subacqueo</a> è l'<a href="/wiki/Ossigenoterapia" title="Ossigenoterapia">ossigenoterapia</a> e l'<a href="/wiki/Ossigenoterapia_iperbarica" title="Ossigenoterapia iperbarica">ossigenoterapia iperbarica</a>, attraverso cui è possibile curare e/o accelerare i processi curativi di una lunga serie di patologie di vario genere oltre a quelle da decompressione tipiche dei palombari e dei sommozzatori. Per pazienti con difficoltà respiratorie si usano maschere speciali ad O<sub>2</sub> che ne aumentano la concentrazione nell'aria inspirata. Alla base di queste applicazioni sta il principio secondo cui la trasportabilità dell'O<sub>2</sub> nel sangue aumenta con la sua pressione parziale. </p><p>Essendo un <a href="/wiki/Farmaco" title="Farmaco">farmaco</a> a tutti gli effetti (<a href="/wiki/Decreto_legislativo" title="Decreto legislativo">Dlgs</a> 219/06), da maggio 2010 l'O<sub>2</sub> utilizzato in ambito ospedaliero dopo essere stato prodotto per <a href="/wiki/Distillazione_frazionata" title="Distillazione frazionata">distillazione frazionata</a> viene trattato ulteriormente ed analizzato. Una volta verificate le sue caratteristiche, che devono essere come quelle riportate nella <a href="/wiki/Farmacopea_Ufficiale" title="Farmacopea Ufficiale">Farmacopea Ufficiale</a>, viene "etichettato" con un numero di lotto come avviene per i farmaci, viene indicata la data di scadenza (nel caso dell'O<sub>2</sub> medicinale è 5 anni) e consegnato alle strutture sanitarie attraverso un'operazione di "rilascio del lotto" sotto la completa responsabilità del farmacista dell'azienda che l'ha prodotto. Come farmaco a tutti gli effetti quindi, oltre che a possedere un AIC (Autorizzazione Immissione in Commercio) legata al tipo di confezionamento (<a href="/wiki/Bombola" title="Bombola">bombola</a>, <a href="/wiki/Cisterna" title="Cisterna">cisterna</a>, ecc.), deve essere somministrato dietro ricetta medica che ne indichi le modalità di somministrazione, la posologia e la durata della terapia. </p><p>Altri utilizzi dell'O<sub>2</sub> sono in miscele chiamate "stimolanti respiratori"; queste miscele sono composte principalmente da O<sub>2</sub> in fase gassosa (95%) e anidride carbonica (5%), e vengono utilizzate in ambito ospedaliero. Queste miscele hanno la peculiarità di permettere un'espulsione più rapida di molecole dannose dall'organismo, ad esempio nel caso di intossicazioni da <a href="/wiki/Monossido_di_carbonio" title="Monossido di carbonio">monossido di carbonio</a> (CO). </p><p>Fino al 1961 l'ossigeno è stato utilizzato come elemento standard di riferimento per quantificare la massa degli altri elementi chimici, per poi essere sostituito dal <a href="/wiki/Carbonio_12" class="mw-redirect" title="Carbonio 12">carbonio 12</a>.<sup id="cite_ref-thermo_1-9" class="reference"><a href="#cite_note-thermo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Le batterie agli ioni di ossigeno trovano impiego come <a href="/wiki/Accumulatore" class="mw-disambig" title="Accumulatore">accumulatori</a> degli impianti stazionari che ricevono <a href="/wiki/Energia_rinnovabile" class="mw-redirect" title="Energia rinnovabile">energia da fonti rinnovabili</a>, che operano a temperature comprese fra i 200 e 400 gradi centigradi.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> La durata è pari a migliaia di cicli di ricarica e si rigenera facilmente sostituendo l'ossigeno con altro presente nell'area circostante. Tuttavia, al 2023 non è ancora stato brevettato un tipo di batteria privo di materiali nobili. </p> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:US_Navy_120209-N-RG587-230_Hull_Maintenance_Technician_2nd_Class_Tiffani_Carlin_uses_an_oxy-acetylene_torch_to_separate_a_pipe_from_a_fitting_in_th.jpg" class="mw-file-description" title="Saldatura con fiamma ossiacetilenica."><img alt="Saldatura con fiamma ossiacetilenica." src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ad/US_Navy_120209-N-RG587-230_Hull_Maintenance_Technician_2nd_Class_Tiffani_Carlin_uses_an_oxy-acetylene_torch_to_separate_a_pipe_from_a_fitting_in_th.jpg/120px-US_Navy_120209-N-RG587-230_Hull_Maintenance_Technician_2nd_Class_Tiffani_Carlin_uses_an_oxy-acetylene_torch_to_separate_a_pipe_from_a_fitting_in_th.jpg" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ad/US_Navy_120209-N-RG587-230_Hull_Maintenance_Technician_2nd_Class_Tiffani_Carlin_uses_an_oxy-acetylene_torch_to_separate_a_pipe_from_a_fitting_in_th.jpg/180px-US_Navy_120209-N-RG587-230_Hull_Maintenance_Technician_2nd_Class_Tiffani_Carlin_uses_an_oxy-acetylene_torch_to_separate_a_pipe_from_a_fitting_in_th.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ad/US_Navy_120209-N-RG587-230_Hull_Maintenance_Technician_2nd_Class_Tiffani_Carlin_uses_an_oxy-acetylene_torch_to_separate_a_pipe_from_a_fitting_in_th.jpg/240px-US_Navy_120209-N-RG587-230_Hull_Maintenance_Technician_2nd_Class_Tiffani_Carlin_uses_an_oxy-acetylene_torch_to_separate_a_pipe_from_a_fitting_in_th.jpg 2x" data-file-width="2700" data-file-height="1794" /></a></span></div> <div class="gallerytext"><a href="/wiki/Saldatura_ossiacetilenica" title="Saldatura ossiacetilenica">Saldatura con fiamma ossiacetilenica</a>.</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Monoplace_chamber.JPG" class="mw-file-description" title="Camere iperbariche per ossigenoterapia."><img alt="Camere iperbariche per ossigenoterapia." src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Monoplace_chamber.JPG/120px-Monoplace_chamber.JPG" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Monoplace_chamber.JPG/180px-Monoplace_chamber.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Monoplace_chamber.JPG/240px-Monoplace_chamber.JPG 2x" data-file-width="3072" data-file-height="2304" /></a></span></div> <div class="gallerytext">Camere iperbariche per <a href="/wiki/Ossigenoterapia_iperbarica" title="Ossigenoterapia iperbarica">ossigenoterapia</a>.</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Space_Shuttle_external_tank_assembly_08.jpg" class="mw-file-description" title="Serbatoi esterni dello Space Shuttle contenenti H2 e O2, utilizzati per la propulsione del mezzo."><img alt="Serbatoi esterni dello Space Shuttle contenenti H2 e O2, utilizzati per la propulsione del mezzo." src="//upload.wikimedia.org/wikipedia/commons/thumb/1/13/Space_Shuttle_external_tank_assembly_08.jpg/120px-Space_Shuttle_external_tank_assembly_08.jpg" decoding="async" width="120" height="95" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/13/Space_Shuttle_external_tank_assembly_08.jpg/180px-Space_Shuttle_external_tank_assembly_08.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/13/Space_Shuttle_external_tank_assembly_08.jpg/240px-Space_Shuttle_external_tank_assembly_08.jpg 2x" data-file-width="3000" data-file-height="2385" /></a></span></div> <div class="gallerytext">Serbatoi esterni dello <a href="/wiki/Space_Shuttle" title="Space Shuttle">Space Shuttle</a> contenenti H<sub>2</sub> e O<sub>2</sub>, utilizzati per la propulsione del mezzo.</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Oxygen-Process_Steel-Making_Vessel.jpg" class="mw-file-description" title="Un convertitore Bessemer; in esso il prodotto dell'altoforno viene fatto reagire con O2 per produrre acciaio."><img alt="Un convertitore Bessemer; in esso il prodotto dell'altoforno viene fatto reagire con O2 per produrre acciaio." src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Oxygen-Process_Steel-Making_Vessel.jpg/80px-Oxygen-Process_Steel-Making_Vessel.jpg" decoding="async" width="80" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Oxygen-Process_Steel-Making_Vessel.jpg/119px-Oxygen-Process_Steel-Making_Vessel.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Oxygen-Process_Steel-Making_Vessel.jpg/159px-Oxygen-Process_Steel-Making_Vessel.jpg 2x" data-file-width="2848" data-file-height="4288" /></a></span></div> <div class="gallerytext">Un <a href="/wiki/Convertitore_Bessemer" title="Convertitore Bessemer">convertitore Bessemer</a>; in esso il prodotto dell'<a href="/wiki/Altoforno" title="Altoforno">altoforno</a> viene fatto reagire con O<sub>2</sub> per produrre <a href="/wiki/Acciaio" title="Acciaio">acciaio</a>.</div> </li> </ul> <div class="mw-heading mw-heading2"><h2 id="Precauzioni">Precauzioni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=14" title="Modifica la sezione Precauzioni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=14" title="Edit section's source code: Precauzioni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="infobox sinottico" summary="Tabella sinottica che riassume i principali dati del soggetto"><tbody><tr class="sinottico_divisione"><th colspan="2"><a href="/wiki/Simboli_di_rischio_chimico" title="Simboli di rischio chimico">Simboli di rischio chimico</a></th></tr><tr><td class="sinottico_testo_centrale" colspan="2"><span typeof="mw:File"><a href="/wiki/File:GHS-pictogram-rondflam.svg" class="mw-file-description" title="comburente"><img alt="comburente" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/GHS-pictogram-rondflam.svg/50px-GHS-pictogram-rondflam.svg.png" decoding="async" width="50" height="50" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/GHS-pictogram-rondflam.svg/75px-GHS-pictogram-rondflam.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/GHS-pictogram-rondflam.svg/100px-GHS-pictogram-rondflam.svg.png 2x" data-file-width="724" data-file-height="724" /></a></span>  <span typeof="mw:File"><a href="/wiki/File:GHS-pictogram-bottle.svg" class="mw-file-description" title="gas compresso"><img alt="gas compresso" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6a/GHS-pictogram-bottle.svg/50px-GHS-pictogram-bottle.svg.png" decoding="async" width="50" height="50" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6a/GHS-pictogram-bottle.svg/75px-GHS-pictogram-bottle.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6a/GHS-pictogram-bottle.svg/100px-GHS-pictogram-bottle.svg.png 2x" data-file-width="724" data-file-height="724" /></a></span>  <br />pericolo <hr /> </td></tr><tr><th><a href="/wiki/Frasi_H" class="mw-redirect" title="Frasi H">frasi H</a></th><td><abbr title="Può provocare o aggravare un incendio; comburente.">270 </abbr>- <abbr title="Contiene gas sotto pressione; può esplodere se riscaldato.">280 </abbr> </td></tr><tr><th><a href="/wiki/Frasi_R" title="Frasi R">frasi R</a></th><td>R 8 </td></tr><tr><th><a href="/wiki/Consigli_P" title="Consigli P">consigli P</a></th><td><abbr title="Mantenere le valvole di riduzione libere da grasso e olio.">244 </abbr>- <abbr title="Tenere/conservare lontano da indumenti / ... / materiali combustibili.">220 </abbr>- <abbr title="In caso di incendio: bloccare la perdita se non c'è pericolo.">370+376 </abbr>- <abbr title="Conservare in luogo ben ventilato.">403 </abbr><sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </td></tr><tr><th><a href="/wiki/Frasi_S" title="Frasi S">frasi S</a></th><td>S 2-17 </td></tr><tr><td class="sinottico_testo_centrale" colspan="2"><hr /> <span style="font-size:90%"><b>Le sostanze chimiche<br />vanno manipolate con cautela</b></span> </td></tr><tr><td colspan="2" class="sinottico_piede"><a href="/wiki/Wikipedia:Disclaimer_sul_rischio" title="Wikipedia:Disclaimer sul rischio">Avvertenze</a> </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Pericolo_di_esplosione_o_combustione">Pericolo di esplosione o combustione</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=15" title="Modifica la sezione Pericolo di esplosione o combustione" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=15" title="Edit section's source code: Pericolo di esplosione o combustione"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Una forte <a href="/wiki/Legge_delle_pressioni_parziali" title="Legge delle pressioni parziali">pressione parziale</a> di O<sub>2</sub> può provocare combustioni spontanee, può accelerare le combustioni già in atto e produrre esplosioni se sono presenti buoni combustibili. Questo è vero anche per composti molto ricchi di ossigeno come clorati, perclorati, dicromati, ecc. </p> <div class="mw-heading mw-heading4"><h4 id="Ossigenocompatibilità"><span id="Ossigenocompatibilit.C3.A0"></span>Ossigenocompatibilità</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=16" title="Modifica la sezione Ossigenocompatibilità" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=16" title="Edit section's source code: Ossigenocompatibilità"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Diving_cylinder_oxygen_label.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Diving_cylinder_oxygen_label.JPG/220px-Diving_cylinder_oxygen_label.JPG" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Diving_cylinder_oxygen_label.JPG/330px-Diving_cylinder_oxygen_label.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Diving_cylinder_oxygen_label.JPG/440px-Diving_cylinder_oxygen_label.JPG 2x" data-file-width="500" data-file-height="375" /></a><figcaption>Etichettatura su una bombola d'ossigeno.</figcaption></figure> <p>Quando si maneggia O<sub>2</sub> puro compresso, per evitare il rischio di combustioni o esplosioni, è necessario utilizzare attrezzature cosiddette <i>ossigeno compatibili</i> o <i>pulite per ossigeno</i><sup id="cite_ref-usnavyman_28-0" class="reference"><a href="#cite_note-usnavyman-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup>, cioè pulite accuratamente da ogni traccia di grassi e olii e in cui l'O<sub>2</sub> compresso non entra mai in contatto con materiali combustibili, ad esempio guarnizioni o metalli non compatibili. </p> <div class="mw-heading mw-heading3"><h3 id="Tossicità"><span id="Tossicit.C3.A0"></span>Tossicità</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=17" title="Modifica la sezione Tossicità" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=17" title="Edit section's source code: Tossicità"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r130657691"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r139142988"> <div class="hatnote noprint vedi-anche"> <div class="hatnote-content"><span class="noviewer hatnote-icon" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/18px-Magnifying_glass_icon_mgx2.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/27px-Magnifying_glass_icon_mgx2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/36px-Magnifying_glass_icon_mgx2.svg.png 2x" data-file-width="286" data-file-height="280" /></span></span> <span class="hatnote-text">Lo stesso argomento in dettaglio: <b><a href="/wiki/Tossicit%C3%A0_dell%27ossigeno" title="Tossicità dell'ossigeno">Tossicità dell'ossigeno</a></b>.</span></div> </div> <p>L'ossigeno è un elemento molto instabile e quindi reagisce anche violentemente con gli altri elementi per aumentare la sua stabilità. La compatibilità con la vita in sua presenza è legata alla possibilità di adoperarlo come prezioso e potente reagente (è letteralmente un <i>pozzo di elettroni</i>) senza esserne danneggiati. </p><p>I viventi <a href="/wiki/Aerobiosi" title="Aerobiosi">aerobi</a> hanno strutture metaboliche che ne neutralizzino gli effetti dannosi. Gli effetti dannosi sono chiaramente evidenti invece nei viventi <a href="/wiki/Anaerobiosi" title="Anaerobiosi">anaerobi</a> che non hanno strutture di protezione fisiologiche e che sono distrutti dall'O<sub>2</sub> e che possono sopravvivere solo se dotati di barriere fisiche che ne impediscano il contatto. </p><p>Un'esposizione prolungata all'O<sub>2</sub> ad alte <a href="/wiki/Legge_delle_pressioni_parziali" title="Legge delle pressioni parziali">pressioni parziali</a> è tossica, dato che supera i livelli di neutralizzazione, e può avere gravi conseguenze a livello polmonare e <a href="/wiki/Neurologia" title="Neurologia">neurologico</a> a seconda della pressione e del tempo di esposizione. Gli effetti <a href="/wiki/Polmone" title="Polmone">polmonari</a> includono perdita di capacità e danni ai <a href="/wiki/Tessuto_(biologia)" title="Tessuto (biologia)">tessuti</a>. Gli effetti neurologici possono comprendere convulsioni, cecità e coma. </p> <div class="mw-heading mw-heading4"><h4 id="Tossicità_dei_composti"><span id="Tossicit.C3.A0_dei_composti"></span>Tossicità dei composti</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=18" title="Modifica la sezione Tossicità dei composti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=18" title="Edit section's source code: Tossicità dei composti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Composti dell'ossigeno come i <a href="/wiki/Perossidi" title="Perossidi">perossidi</a>, i <a href="/wiki/Superossidi" class="mw-redirect" title="Superossidi">superossidi</a> e il suo allotropo <a href="/wiki/Ozono" title="Ozono">ozono</a> sono altamente reattivi e quindi letali per gli organismi. </p> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=19" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=19" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-thermo-1"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-thermo_1-0">a</a></i></sup> <sup><i><a href="#cite_ref-thermo_1-1">b</a></i></sup> <sup><i><a href="#cite_ref-thermo_1-2">c</a></i></sup> <sup><i><a href="#cite_ref-thermo_1-3">d</a></i></sup> <sup><i><a href="#cite_ref-thermo_1-4">e</a></i></sup> <sup><i><a href="#cite_ref-thermo_1-5">f</a></i></sup> <sup><i><a href="#cite_ref-thermo_1-6">g</a></i></sup> <sup><i><a href="#cite_ref-thermo_1-7">h</a></i></sup> <sup><i><a href="#cite_ref-thermo_1-8">i</a></i></sup> <sup><i><a href="#cite_ref-thermo_1-9">j</a></i></sup></span> <span class="reference-text">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="http://www.thermopedia.com/content/1008">Thermopedia, "Oxygen"</a></span> </li> <li id="cite_note-sapio-2"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-sapio_2-0">a</a></i></sup> <sup><i><a href="#cite_ref-sapio_2-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110714222556/http://cms.sapio.it/modules/FORMARCHITECT/Externals/117187/20060321165829.pdf"><span style="font-style:italic;">Scheda ossigeno della Sapio</span></a> (<span style="font-weight: bolder; font-size:80%"><abbr title="documento in formato PDF">PDF</abbr></span>), su <span style="font-style:italic;">cms.sapio.it</span>. <small>URL consultato il 10 aprile 2010</small> <small>(archiviato dall'<abbr title="http://cms.sapio.it/modules/FORMARCHITECT/Externals/117187/20060321165829.pdf">url originale</abbr> il 14 luglio 2011)</small>.</cite></span> </li> <li id="cite_note-webelements.com-3"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-webelements.com_3-0">a</a></i></sup> <sup><i><a href="#cite_ref-webelements.com_3-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://www.webelements.com/oxygen/electronegativity.html"><span style="font-style:italic;">WebElements: the periodic table on the web – Oxygen: electronegativities</span></a>, su <span style="font-style:italic;">webelements.com</span>. <small>URL consultato il 7 novembre 2011</small>.</cite></span> </li> <li id="cite_note-ECE500-4"><a href="#cite_ref-ECE500_4-0"><b>^</b></a> <span class="reference-text"><a href="#Reference-idCook1968">Cook & Lauer 1968</a>, p.500</span> </li> <li id="cite_note-lanl-5"><a href="#cite_ref-lanl_5-0"><b>^</b></a> <span class="reference-text"> <cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20071026034224/http://periodic.lanl.gov/elements/8.html"><span style="font-style:italic;">Oxygen</span></a>, su <span style="font-style:italic;">periodic.lanl.gov</span>, Los Alamos National Laboratory. <small>URL consultato il 16 dicembre 2007</small> <small>(archiviato dall'<abbr title="http://periodic.lanl.gov/elements/8.html">url originale</abbr> il 26 ottobre 2007)</small>.</cite></span> </li> <li id="cite_note-mellor-6"><a href="#cite_ref-mellor_6-0"><b>^</b></a> <span class="reference-text"><cite class="citation libro" style="font-style:normal"> G. D. Parks e J. W. Mellor, <span style="font-style:italic;">Mellor's Modern Inorganic Chemistry</span>, 6th, London, Longmans, Green and Co., 1939.</cite></span> </li> <li id="cite_note-Rolla283-7"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Rolla283_7-0">a</a></i></sup> <sup><i><a href="#cite_ref-Rolla283_7-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFRolla">Rolla</a>, p. 283</cite>.</span> </li> <li id="cite_note-ACS1-8"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-ACS1_8-0">a</a></i></sup> <sup><i><a href="#cite_ref-ACS1_8-1">b</a></i></sup></span> <span class="reference-text"> Ryan D. McCulla, Saint Louis University (2010). <a rel="nofollow" class="external text" href="//acswebcontent.acs.org/prfar/2010/reports/P11141.html">"Atomic Oxygen O(3P): Photogeneration and Reactions with Biomolecules"</a>.</span> </li> <li id="cite_note-nasas11-9"><a href="#cite_ref-nasas11_9-0"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.nasa.gov/topics/technology/features/atomic_oxygen.html">"Out of Thin Air"</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20170623003016/https://www.nasa.gov/topics/technology/features/atomic_oxygen.html">Archiviato</a> il 23 giugno 2017 in <a href="/wiki/Internet_Archive" title="Internet Archive">Internet Archive</a>.. NASA.gov. 17 febbraio 2011.</span> </li> <li id="cite_note-10"><a href="#cite_ref-10"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> Kassandra Bell, <a rel="nofollow" class="external text" href="https://www.nasa.gov/feature/ames/sofia/flying-observatory-detects-atomic-oxygen-in-martian-atmosphere"><span style="font-style:italic;">Flying observatory detects atomic oxygen in Martian Atmosphere</span></a>, su <span style="font-style:italic;"><a href="/wiki/NASA" title="NASA">NASA</a></span>, 6 maggio 2016.</cite></span> </li> <li id="cite_note-Rolla284-11"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Rolla284_11-0">a</a></i></sup> <sup><i><a href="#cite_ref-Rolla284_11-1">b</a></i></sup> <sup><i><a href="#cite_ref-Rolla284_11-2">c</a></i></sup></span> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFRolla">Rolla</a>, p. 284</cite>.</span> </li> <li id="cite_note-12"><a href="#cite_ref-12"><b>^</b></a> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFRolla">Rolla</a>, p. 287</cite>.</span> </li> <li id="cite_note-Rolla285-13"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Rolla285_13-0">a</a></i></sup> <sup><i><a href="#cite_ref-Rolla285_13-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFRolla">Rolla</a>, p. 285</cite>.</span> </li> <li id="cite_note-Ull4.1-14"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Ull4.1_14-0">a</a></i></sup> <sup><i><a href="#cite_ref-Ull4.1_14-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFUllmann's">Ullmann's</a>, cap. 4.1</cite>.</span> </li> <li id="cite_note-Ull4.2-15"><a href="#cite_ref-Ull4.2_15-0"><b>^</b></a> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFUllmann's">Ullmann's</a>, cap. 4.2</cite>.</span> </li> <li id="cite_note-Ull4.3-16"><a href="#cite_ref-Ull4.3_16-0"><b>^</b></a> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFUllmann's">Ullmann's</a>, cap. 4.3</cite>.</span> </li> <li id="cite_note-17"><a href="#cite_ref-17"><b>^</b></a> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFRolla">Rolla</a>, p. 286</cite>.</span> </li> <li id="cite_note-18"><a href="#cite_ref-18"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://pure.mpg.de/rest/items/item_1108560_8/component/file_1402724/content"><span style="font-style:italic;">Surface chemistry of phase-pure M1 MoVTeNb oxide during operation in selective oxidation of propane to acrylic acid</span></a>, in <span style="font-style:italic;">J. Catal.</span>, vol. 285, 2012.</cite></span> </li> <li id="cite_note-19"><a href="#cite_ref-19"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Laio Damasceno da Silva, Ronaldo Costa Santos e Jordan Gonzaga Andrade Batista Silva, <a rel="nofollow" class="external text" href="https://doi.org/10.1007/s11144-021-02111-8"><span style="font-style:italic;">Direct ammoxidation of glycerol to nitriles using Mo/alumina catalysts</span></a>, in <span style="font-style:italic;">Reaction Kinetics, Mechanisms and Catalysis</span>, 2 dicembre 2021, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1007%2Fs11144-021-02111-8">10.1007/s11144-021-02111-8</a>. <small>URL consultato il 21 dicembre 2021</small>.</cite></span> </li> <li id="cite_note-20"><a href="#cite_ref-20"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://www.researchgate.net/publication/278196177_Multifunctionality_of_Crystalline_MoVTeNb_M1_Oxide_Catalysts_in_Selective_Oxidation_of_Propane_and_Benzyl_Alcohol"><span style="font-style:italic;">Multifunctionality of Crystalline MoV(TeNb) M1 Oxide Catalysts in Selective Oxidation of Propane and Benzyl Alcohol</span></a>, in <span style="font-style:italic;">ACS Catal.</span>, vol. 3, n. 6, 2013, pp. 1103-1113.</cite></span> </li> <li id="cite_note-21"><a href="#cite_ref-21"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://www.nature.com/articles/s41570-019-0110-6"><span style="font-style:italic;">Electrochemical synthesis of hydrogen peroxide from water and oxygen</span></a>, in <span style="font-style:italic;">Nat. Rev. Chem.</span>, vol. 3, 2019.</cite></span> </li> <li id="cite_note-22"><a href="#cite_ref-22"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Francesco Arena, Francesco Ferrante e Roberto Di Chio, <a rel="nofollow" class="external text" href="https://www.sciencedirect.com/science/article/pii/S0926337321008407"><span style="font-style:italic;">DFT and kinetic evidences of the preferential CO oxidation pattern of manganese dioxide catalysts in hydrogen stream (PROX)</span></a>, in <span style="font-style:italic;">Applied Catalysis B: Environmental</span>, vol. 300, 1º gennaio 2022, pp. 120715, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1016%2Fj.apcatb.2021.120715">10.1016/j.apcatb.2021.120715</a>. <small>URL consultato il 21 dicembre 2021</small>.</cite></span> </li> <li id="cite_note-23"><a href="#cite_ref-23"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Andrei I. Boronin, Elena M. Slavinskaya e Alberto Figueroba, <a rel="nofollow" class="external text" href="https://www.sciencedirect.com/science/article/pii/S0926337321000576"><span style="font-style:italic;">CO oxidation activity of Pt/CeO2 catalysts below 0 °C: platinum loading effects</span></a>, in <span style="font-style:italic;">Applied Catalysis B: Environmental</span>, vol. 286, 5 giugno 2021, pp. 119931, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1016%2Fj.apcatb.2021.119931">10.1016/j.apcatb.2021.119931</a>. <small>URL consultato il 21 dicembre 2021</small>.</cite></span> </li> <li id="cite_note-24"><a href="#cite_ref-24"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Katarzyna Adamska, Szymon Smykała e Sebastian Zieliński, <a rel="nofollow" class="external text" href="https://doi.org/10.1007/s11144-021-02048-y"><span style="font-style:italic;">Oxidation of soot over supported RuRe nanoparticles prepared by the microwave-polyol method</span></a>, in <span style="font-style:italic;">Reaction Kinetics, Mechanisms and Catalysis</span>, vol. 134, n. 1, 1º ottobre 2021, pp. 221–242, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1007%2Fs11144-021-02048-y">10.1007/s11144-021-02048-y</a>. <small>URL consultato il 21 dicembre 2021</small>.</cite></span> </li> <li id="cite_note-25"><a href="#cite_ref-25"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Oscar Cabezuelo, Rebeca Martinez-Haya e Noelia Montes, <a rel="nofollow" class="external text" href="https://www.sciencedirect.com/science/article/pii/S0926337321006238"><span style="font-style:italic;">Heterogeneous riboflavin-based photocatalyst for pollutant oxidation through electron transfer processes</span></a>, in <span style="font-style:italic;">Applied Catalysis B: Environmental</span>, vol. 298, 5 dicembre 2021, pp. 120497, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1016%2Fj.apcatb.2021.120497">10.1016/j.apcatb.2021.120497</a>. <small>URL consultato il 21 dicembre 2021</small>.</cite></span> </li> <li id="cite_note-26"><a href="#cite_ref-26"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://insideevs.it/news/658936/batteria-ioni-ossigeno-caratteristiche-densita-durata/amp/"><span style="font-style:italic;">Ecco la batteria agli ioni di ossigeno che ha vita "infinita"</span></a>, su <span style="font-style:italic;">insideevs.it</span>.</cite></span> </li> <li id="cite_note-27"><a href="#cite_ref-27"><b>^</b></a> <span class="reference-text">scheda dell'ossigeno su <cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20191016183546/http://gestis-en.itrust.de/"><span style="font-style:italic;">IFA-GESTIS</span></a>, su <span style="font-style:italic;">gestis-en.itrust.de</span>. <small>URL consultato il 9 maggio 2021</small> <small>(archiviato dall'<abbr title="http://gestis-en.itrust.de">url originale</abbr> il 16 ottobre 2019)</small>.</cite></span> </li> <li id="cite_note-usnavyman-28"><a href="#cite_ref-usnavyman_28-0"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://web.archive.org/web/20090206123923/http://supsalv.org/pdf/DiveMan_rev6.pdf"><span style="font-style:italic;">U.S. Navy Diving Manual</span></a> (<span style="font-weight: bolder; font-size:80%"><abbr title="documento in formato PDF">PDF</abbr></span>), in <span style="font-style:italic;">Naval Sea Systems Command</span>, United States. Naval Sea Systems Command, 2008, 6ª edizione, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/1-57980-454-3" title="Speciale:RicercaISBN/1-57980-454-3">1-57980-454-3</a> <small>(archiviato dall'<abbr title="http://www.supsalv.org/pdf/DiveMan_rev6.pdf">url originale</abbr> il 6 febbraio 2009)</small>.</cite></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Bibliografia">Bibliografia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=20" title="Modifica la sezione Bibliografia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=20" title="Edit section's source code: Bibliografia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite class="citation libro" style="font-style:normal"> Francesco Borgese, <a rel="nofollow" class="external text" href="http://books.google.it/books?id=9uNyAAAACAAJ"><span style="font-style:italic;">Gli elementi della tavola periodica. Rinvenimento, proprietà, usi. Prontuario chimico, fisico, geologico</span></a>, Roma, CISU, 1993, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/88-7975-077-1" title="Speciale:RicercaISBN/88-7975-077-1">88-7975-077-1</a>.</cite></li> <li><cite id="CITEREFTavola_periodica_e_proprietà_degli_elementi" class="citation libro" style="font-style:normal"> R. Barbucci, A. Sabatini, P. Dapporto, <a rel="nofollow" class="external text" href="https://web.archive.org/web/20101022060832/http://www.idelsongnocchi.it/online/vmchk/chimica/tavola-periodica-degli-elementi-iupac.html"><span style="font-style:italic;">Tavola periodica e proprietà degli elementi</span></a>, Firenze, Edizioni V. Morelli, 1998 <small>(archiviato dall'<abbr title="http://www.idelsongnocchi.it/online/vmchk/chimica/tavola-periodica-degli-elementi-iupac.html">url originale</abbr> il 22 ottobre 2010)</small>.</cite></li> <li><cite id="CITEREFRolla" class="citation libro" style="font-style:normal"> Luigi Rolla, <span style="font-style:italic;">Chimica e mineralogia. Per le Scuole superiori</span>, 29ª ed., Dante Alighieri, 1987.</cite></li> <li><cite id="CITEREFUllmann's" class="citation libro" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Mark J. Kirschner, <span style="font-style:italic;">Ullmann's Encyclopedia of Industrial Chemistry, "Oxygen"</span>, 6ª ed., Wiley-VCH, 2002, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1002%2F14356007.a18_329">10.1002/14356007.a18_329</a>, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/3-527-30385-5" title="Speciale:RicercaISBN/3-527-30385-5">3-527-30385-5</a>.</cite></li></ul> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=21" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=21" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r119427926">.mw-parser-output .responsive-columns{display:flex;flex-wrap:wrap;justify-content:space-between;margin-bottom:-20px}.mw-parser-output .responsive-columns>div{flex:1 1;margin:0 20px 20px 0}</style><div class="responsive-columns" style=""> <div> <dl><dt>Chimica dell'ossigeno</dt></dl> <ul><li><a href="/wiki/Ossigeno_liquido" title="Ossigeno liquido">Ossigeno liquido</a></li> <li><a href="/wiki/Ossigeno_solido" title="Ossigeno solido">Ossigeno solido</a></li> <li><a href="/wiki/Ozono" title="Ozono">Ozono</a></li> <li><a href="/wiki/Tetraossigeno" title="Tetraossigeno">Tetraossigeno</a></li> <li><a href="/wiki/Ossido" title="Ossido">Ossido</a></li> <li><a href="/wiki/Perossido" class="mw-redirect" title="Perossido">Perossido</a></li> <li><a href="/wiki/Idrossido" title="Idrossido">Idrossido</a></li> <li><a href="/wiki/Ossiacidi" title="Ossiacidi">Ossiacidi</a></li> <li><a href="/wiki/Ossidazione" title="Ossidazione">Ossidazione</a></li> <li><a href="/wiki/Ossidrogeno" title="Ossidrogeno">Ossidrogeno</a></li></ul> </div> <div> <dl><dt>Enzimi</dt></dl> <ul><li><a href="/wiki/Ossigenasi" title="Ossigenasi">Ossigenasi</a></li></ul> <dl><dt>Ossigeno in natura</dt></dl> <ul><li><a href="/wiki/Ciclo_dell%27ossigeno" title="Ciclo dell'ossigeno">Ciclo dell'ossigeno</a></li> <li><a href="/wiki/Catastrofe_dell%27ossigeno" title="Catastrofe dell'ossigeno">Catastrofe dell'ossigeno</a></li></ul> <dl><dt>Effetti sul corpo umano</dt></dl> <ul><li><a href="/wiki/Anossia" title="Anossia">Anossia</a></li> <li><a href="/wiki/Ipossia" title="Ipossia">Ipossia</a></li> <li><a href="/wiki/Ipossiemia" title="Ipossiemia">Ipossiemia</a></li> <li><a href="/wiki/Ossigenoterapia_iperbarica" title="Ossigenoterapia iperbarica">Ossigenoterapia iperbarica</a></li> <li><a href="/wiki/Tossicit%C3%A0_dell%27ossigeno" title="Tossicità dell'ossigeno">Tossicità dell'ossigeno</a></li></ul> </div> <div> <dl><dt>Apparecchiature e dispositivi</dt></dl> <ul><li><a href="/wiki/Autorespiratore_a_ossigeno" title="Autorespiratore a ossigeno">Autorespiratore a ossigeno</a></li> <li><a href="/wiki/Maschera_dell%27ossigeno" class="mw-redirect" title="Maschera dell'ossigeno">Maschera dell'ossigeno</a></li> <li><a href="/wiki/Rebreather" title="Rebreather">Rebreather</a></li> <li><a href="/wiki/Saturimetro" class="mw-redirect" title="Saturimetro">Saturimetro</a></li></ul> <dl><dt>Misure</dt></dl> <ul><li><a href="/wiki/Ossigeno_disciolto" title="Ossigeno disciolto">Ossigeno disciolto</a></li> <li><a href="/wiki/Domanda_biochimica_di_ossigeno" title="Domanda biochimica di ossigeno">Domanda biochimica di ossigeno</a></li> <li><a href="/wiki/Domanda_chimica_di_ossigeno" title="Domanda chimica di ossigeno">Domanda chimica di ossigeno</a></li> <li><a href="/wiki/Total_oxygen_demand" title="Total oxygen demand">Total oxygen demand</a></li></ul> <dl><dt>Ossigeno in enologia</dt></dl> <ul><li><a href="/wiki/Microssigenazione" title="Microssigenazione">Microssigenazione</a></li></ul> </div> </div> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=22" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=22" title="Edit section's source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><a href="https://it.wikiquote.org/wiki/Ossigeno" class="extiw" title="q:Ossigeno">Wikiquote</a></li> <li class="" title=""><a href="https://it.wiktionary.org/wiki/ossigeno" class="extiw" title="wikt:ossigeno">Wikizionario</a></li> <li class="" title=""><span class="plainlinks" title="commons:Category:Oxygen"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Oxygen?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://it.wikiquote.org/wiki/" title="Collabora a Wikiquote"><img alt="Collabora a Wikiquote" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/18px-Wikiquote-logo.svg.png" decoding="async" width="18" height="21" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/27px-Wikiquote-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/36px-Wikiquote-logo.svg.png 2x" data-file-width="300" data-file-height="355" /></a></span> <a href="https://it.wikiquote.org/wiki/" class="extiw" title="q:">Wikiquote</a> contiene citazioni sull'<b><a href="https://it.wikiquote.org/wiki/Ossigeno" class="extiw" title="q:Ossigeno">ossigeno</a></b></li> <li><span typeof="mw:File"><a href="https://it.wiktionary.org/wiki/" title="Collabora a Wikizionario"><img alt="Collabora a Wikizionario" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Wiktionary_small.svg/18px-Wiktionary_small.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Wiktionary_small.svg/27px-Wiktionary_small.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Wiktionary_small.svg/36px-Wiktionary_small.svg.png 2x" data-file-width="350" data-file-height="350" /></a></span> <a href="https://it.wiktionary.org/wiki/" class="extiw" title="wikt:">Wikizionario</a> contiene il lemma di dizionario «<b><a href="https://it.wiktionary.org/wiki/ossigeno" class="extiw" title="wikt:ossigeno">ossigeno</a></b>»</li> <li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file sull'<b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Oxygen?uselang=it">ossigeno</a></span></b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ossigeno&veaction=edit&section=23" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ossigeno&action=edit&section=23" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li class="mw-empty-elt"></li> <li><cite id="CITEREFTreccani.it" class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://www.treccani.it/enciclopedia/ossigeno"><span style="font-style:italic;">ossigeno</span></a>, su <span style="font-style:italic;">Treccani.it – Enciclopedie on line</span>, <a href="/wiki/Istituto_dell%27Enciclopedia_Italiana" title="Istituto dell'Enciclopedia Italiana">Istituto dell'Enciclopedia Italiana</a>.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q629#P3365" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></li> <li><cite id="CITEREFBritannica.com" class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Robert C. Brasted, <a rel="nofollow" class="external text" href="https://www.britannica.com/science/oxygen"><span style="font-style:italic;">oxygen</span></a>, su <span style="font-style:italic;"><a href="/wiki/Enciclopedia_Britannica" title="Enciclopedia Britannica">Enciclopedia Britannica</a></span>, Encyclopædia Britannica, Inc.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q629#P1417" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></li> <li><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://www.itchiavari.org/chimica/lab/prepo2.html"><span style="font-style:italic;">Preparazione dell'ossigeno</span></a>, su <span style="font-style:italic;">itchiavari.org</span>.</cite></li></ul> <style data-mw-deduplicate="TemplateStyles:r141815314">.mw-parser-output .navbox{border:1px solid #aaa;clear:both;margin:auto;padding:2px;width:100%}.mw-parser-output .navbox th{padding-left:1em;padding-right:1em;text-align:center}.mw-parser-output .navbox>tbody>tr:first-child>th{background:#ccf;font-size:90%;width:100%;color:var(--color-base,black)}.mw-parser-output .navbox_navbar{float:left;margin:0;padding:0 10px 0 0;text-align:left;width:6em}.mw-parser-output .navbox_title{font-size:110%}.mw-parser-output .navbox_abovebelow{background:#ddf;font-size:90%;font-weight:normal}.mw-parser-output .navbox_group{background:#ddf;font-size:90%;padding:0 10px;white-space:nowrap}.mw-parser-output .navbox_list{font-size:90%;width:100%}.mw-parser-output .navbox_list a{white-space:nowrap}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_odd{background:#fdfdfd;color:var(--color-base,black)}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_even{background:#f7f7f7;color:var(--color-base,black)}.mw-parser-output .navbox a.mw-selflink{color:var(--color-base,black)}.mw-parser-output .navbox_center{text-align:center}.mw-parser-output .navbox .navbox_image{padding-left:7px;vertical-align:middle;width:0}.mw-parser-output .navbox+.navbox{margin-top:-1px}.mw-parser-output .navbox .mw-collapsible-toggle{font-weight:normal;text-align:right;width:7em}body.skin--responsive .mw-parser-output .navbox_image img{max-width:none!important}.mw-parser-output .subnavbox{margin:-3px;width:100%}.mw-parser-output .subnavbox_group{background:#e6e6ff;padding:0 10px}@media screen{html.skin-theme-clientpref-night .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-night .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-night .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-os .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-os .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}</style><table class="navbox mw-collapsible mw-collapsed noprint metadata" id="navbox-Elementi_chimici"><tbody><tr><th colspan="2"><div class="navbox_navbar"><div class="noprint plainlinks" style="background-color:transparent; padding:0; font-size:xx-small; color:var(--color-base, #000000); white-space:nowrap;"><a href="/wiki/Template:Elementi_chimici" title="Template:Elementi chimici"><span title="Vai alla pagina del template">V</span></a> · <a href="/wiki/Discussioni_template:Elementi_chimici" title="Discussioni template:Elementi chimici"><span title="Discuti del template">D</span></a> · <a class="external text" href="https://it.wikipedia.org/w/index.php?title=Template:Elementi_chimici&action=edit"><span title="Modifica il template. Usa l'anteprima prima di salvare">M</span></a></div></div><span class="navbox_title"><a href="/wiki/Tavola_periodica_degli_elementi" title="Tavola periodica degli elementi">Tavola periodica degli elementi</a></span></th></tr><tr><td colspan="2" class="navbox_list navbox_center navbox_odd"><table style="width:100%"> <tbody><tr> <td align="center"> <table style="font-size:90%; text-align:center"> <tbody><tr> <td style="background-color:#A0DDA0; width:20px"><a href="/wiki/Idrogeno" title="Idrogeno">H</a></td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="width:20px"> </td> <td style="background-color:#C0DDDD; width:20px"><a href="/wiki/Elio" title="Elio">He</a></td> </tr> <tr> <td style="background-color:#FF6666"><a href="/wiki/Litio" title="Litio">Li</a></td> <td style="background-color:#FFDEAD"><a href="/wiki/Berillio" title="Berillio">Be</a></td> <td colspan="24"> </td> <td style="background-color:#CCCC99"><a href="/wiki/Boro" title="Boro">B</a></td> <td style="background-color:#A0DDA0"><a href="/wiki/Carbonio" title="Carbonio">C</a></td> <td style="background-color:#A0DDA0"><a href="/wiki/Azoto" title="Azoto">N</a></td> <td style="background-color:#A0DDA0"><a class="mw-selflink selflink">O</a></td> <td style="background-color:#FFDD00"><a href="/wiki/Fluoro" title="Fluoro">F</a></td> <td style="background-color:#C0DDDD"><a href="/wiki/Neon" title="Neon">Ne</a></td> </tr> <tr> <td style="background-color:#FF6666"><a href="/wiki/Sodio" title="Sodio">Na</a></td> <td style="background-color:#FFDEAD"><a href="/wiki/Magnesio" title="Magnesio">Mg</a></td> <td colspan="24"> </td> <td style="background-color:#CCCCCC"><a href="/wiki/Alluminio" title="Alluminio">Al</a></td> <td style="background-color:#CCCC99"><a href="/wiki/Silicio" title="Silicio">Si</a></td> <td style="background-color:#A0DDA0"><a href="/wiki/Fosforo" title="Fosforo">P</a></td> <td style="background-color:#A0DDA0"><a href="/wiki/Zolfo" title="Zolfo">S</a></td> <td style="background-color:#FFDD00"><a href="/wiki/Cloro" title="Cloro">Cl</a></td> <td style="background-color:#C0DDDD"><a href="/wiki/Argon" title="Argon">Ar</a></td> </tr> <tr> <td style="background-color:#FF6666"><a href="/wiki/Potassio" title="Potassio">K</a></td> <td style="background-color:#FFDEAD"><a href="/wiki/Calcio_(elemento_chimico)" title="Calcio (elemento chimico)">Ca</a></td> <td colspan="14"> </td> <td style="background-color:#FFC0C0"><a href="/wiki/Scandio" title="Scandio">Sc</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Titanio" title="Titanio">Ti</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Vanadio" title="Vanadio">V</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Cromo" title="Cromo">Cr</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Manganese" title="Manganese">Mn</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Ferro" title="Ferro">Fe</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Cobalto" title="Cobalto">Co</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Nichel" title="Nichel">Ni</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Rame" title="Rame">Cu</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Zinco" title="Zinco">Zn</a></td> <td style="background-color:#CCCCCC"><a href="/wiki/Gallio_(elemento_chimico)" title="Gallio (elemento chimico)">Ga</a></td> <td style="background-color:#CCCC99"><a href="/wiki/Germanio" title="Germanio">Ge</a></td> <td style="background-color:#CCCC99"><a href="/wiki/Arsenico" title="Arsenico">As</a></td> <td style="background-color:#A0DDA0"><a href="/wiki/Selenio" title="Selenio">Se</a></td> <td style="background-color:#FFDD00"><a href="/wiki/Bromo" title="Bromo">Br</a></td> <td style="background-color:#C0DDDD"><a href="/wiki/Kripton" title="Kripton">Kr</a></td> </tr> <tr> <td style="background-color:#FF6666"><a href="/wiki/Rubidio" title="Rubidio">Rb</a></td> <td style="background-color:#FFDEAD"><a href="/wiki/Stronzio" title="Stronzio">Sr</a></td> <td colspan="14"> </td> <td style="background-color:#FFC0C0"><a href="/wiki/Ittrio" title="Ittrio">Y</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Zirconio" title="Zirconio">Zr</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Niobio" title="Niobio">Nb</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Molibdeno" title="Molibdeno">Mo</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Tecnezio" title="Tecnezio">Tc</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Rutenio" title="Rutenio">Ru</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Rodio" title="Rodio">Rh</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Palladio_(elemento_chimico)" title="Palladio (elemento chimico)">Pd</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Argento" title="Argento">Ag</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Cadmio" title="Cadmio">Cd</a></td> <td style="background-color:#CCCCCC"><a href="/wiki/Indio" title="Indio">In</a></td> <td style="background-color:#CCCCCC"><a href="/wiki/Stagno_(elemento_chimico)" title="Stagno (elemento chimico)">Sn</a></td> <td style="background-color:#CCCC99"><a href="/wiki/Antimonio" title="Antimonio">Sb</a></td> <td style="background-color:#CCCC99"><a href="/wiki/Tellurio" title="Tellurio">Te</a></td> <td style="background-color:#FFDD00"><a href="/wiki/Iodio" title="Iodio">I</a></td> <td style="background-color:#C0DDDD"><a href="/wiki/Xeno" title="Xeno">Xe</a></td> </tr> <tr> <td style="background-color:#FF6666"><a href="/wiki/Cesio" title="Cesio">Cs</a></td> <td style="background-color:#FFDEAD"><a href="/wiki/Bario" title="Bario">Ba</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Lantanio" title="Lantanio">La</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Cerio" title="Cerio">Ce</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Praseodimio" title="Praseodimio">Pr</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Neodimio" title="Neodimio">Nd</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Promezio" title="Promezio">Pm</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Samario" title="Samario">Sm</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Europio" title="Europio">Eu</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Gadolinio" title="Gadolinio">Gd</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Terbio" title="Terbio">Tb</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Disprosio" title="Disprosio">Dy</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Olmio" title="Olmio">Ho</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Erbio" title="Erbio">Er</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Tulio" title="Tulio">Tm</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Itterbio" title="Itterbio">Yb</a></td> <td style="background-color:#FFBFFF"><a href="/wiki/Lutezio" title="Lutezio">Lu</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Afnio" title="Afnio">Hf</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Tantalio" title="Tantalio">Ta</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Tungsteno" title="Tungsteno">W</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Renio" title="Renio">Re</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Osmio" title="Osmio">Os</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Iridio" title="Iridio">Ir</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Platino" title="Platino">Pt</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Oro" title="Oro">Au</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Mercurio_(elemento_chimico)" title="Mercurio (elemento chimico)">Hg</a></td> <td style="background-color:#CCCCCC"><a href="/wiki/Tallio" title="Tallio">Tl</a></td> <td style="background-color:#CCCCCC"><a href="/wiki/Piombo" title="Piombo">Pb</a></td> <td style="background-color:#CCCCCC"><a href="/wiki/Bismuto" title="Bismuto">Bi</a></td> <td style="background-color:#CCCC99"><a href="/wiki/Polonio" title="Polonio">Po</a></td> <td style="background-color:#FFDD00"><a href="/wiki/Astato" title="Astato">At</a></td> <td style="background-color:#C0DDDD"><a href="/wiki/Radon" title="Radon">Rn</a></td> </tr> <tr> <td style="background-color:#FF6666"><a href="/wiki/Francio" title="Francio">Fr</a></td> <td style="background-color:#FFDEAD"><a href="/wiki/Radio_(elemento_chimico)" title="Radio (elemento chimico)">Ra</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Attinio" title="Attinio">Ac</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Torio" title="Torio">Th</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Protoattinio" title="Protoattinio">Pa</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Uranio" title="Uranio">U</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Nettunio" title="Nettunio">Np</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Plutonio" title="Plutonio">Pu</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Americio" title="Americio">Am</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Curio" title="Curio">Cm</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Berkelio" title="Berkelio">Bk</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Californio" title="Californio">Cf</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Einsteinio" title="Einsteinio">Es</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Fermio" title="Fermio">Fm</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Mendelevio" title="Mendelevio">Md</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Nobelio" title="Nobelio">No</a></td> <td style="background-color:#FF99CC"><a href="/wiki/Laurenzio" title="Laurenzio">Lr</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Rutherfordio" title="Rutherfordio">Rf</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Dubnio" title="Dubnio">Db</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Seaborgio" title="Seaborgio">Sg</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Bohrio" title="Bohrio">Bh</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Hassio" title="Hassio">Hs</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Meitnerio" title="Meitnerio">Mt</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Darmstadtio" title="Darmstadtio">Ds</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Roentgenio" title="Roentgenio">Rg</a></td> <td style="background-color:#FFC0C0"><a href="/wiki/Copernicio" title="Copernicio">Cn</a></td> <td style="background-color:#CCCCCC"><a href="/wiki/Nihonio" title="Nihonio">Nh</a></td> <td style="background-color:#CCCCCC"><a href="/wiki/Flerovio" title="Flerovio">Fl</a></td> <td style="background-color:#CCCCCC"><a href="/wiki/Moscovio" title="Moscovio">Mc</a></td> <td style="background-color:#CCCCCC"><a href="/wiki/Livermorio" title="Livermorio">Lv</a></td> <td style="background-color:#FFDD00"><a href="/wiki/Tennesso" title="Tennesso">Ts</a></td> <td style="background-color:#C0DDDD"><a href="/wiki/Oganesson" title="Oganesson">Og</a></td> </tr> <tr> <td style="background-color:#FF6666"><a href="/wiki/Ununennio" title="Ununennio">Uue</a></td> <td style="background-color:#FFDEAD"><a href="/wiki/Unbinilio" title="Unbinilio">Ubn</a></td> </tr> </tbody></table> </td></tr></tbody></table> <table style="width:100%"> <tbody><tr> <td align="center"> <a href="/wiki/Unbibidi" title="Unbibidi">Unbibidi</a><table style="font-size:90%; text-align:center"> <tbody><tr> <td style="background-color:#FF61CC; width:20px">Ubu</td> <td style="background-color:#FF61CC">Ubb</td> <td style="background-color:#FF61CC">Ubt</td> <td style="background-color:#FF61CC">Ubq</td> <td style="background-color:#FF61CC">Ubp</td> <td style="background-color:#FF61CC">Ubh</td> <td style="background-color:#FF61CC">Ubs</td> <td style="background-color:#FF61CC">Ubo</td> <td style="background-color:#FF61CC">Ube</td> <td style="background-color:#FF61CC">Utn</td> <td style="background-color:#FF61CC">Utu</td> <td style="background-color:#FF61CC">Utb</td> <td style="background-color:#FF61CC">Utt</td> <td style="background-color:#FF61CC">Utq</td> <td style="background-color:#FF61CC">Utp</td> <td style="background-color:#FF61CC">Uth</td> <td style="background-color:#FF61CC">Uts</td> <td style="background-color:#FF61CC">Uto</td> </tr> </tbody></table> </td></tr></tbody></table> <table style="width:100%"> <tbody><tr> <td align="center"> <a href="/wiki/Superattinidi" title="Superattinidi">Superattinidi</a><table style="font-size:90%; text-align:center"> <tbody><tr> <td style="background-color:#FF61CC">Ute</td> <td style="background-color:#FF61CC">Uqn</td> <td style="background-color:#FF61CC">Uqu</td> <td style="background-color:#FF61CC">Uqb</td> <td style="background-color:#FF61CC">Uqt</td> <td style="background-color:#FF61CC">Uqq</td> <td style="background-color:#FF61CC">Uqp</td> <td style="background-color:#FF61CC">Uqh</td> <td style="background-color:#FF61CC">Uqs</td> <td style="background-color:#FF61CC">Uqo</td> <td style="background-color:#FF61CC">Uqe</td> <td style="background-color:#FF61CC">Upn</td> <td style="background-color:#FF61CC">Upu</td> <td style="background-color:#FF61CC">Upb</td> <td style="background-color:#FF61CC">Upt</td> </tr> </tbody></table> </td></tr></tbody></table> <hr /> Suddivisioni della tavola periodica: <a href="/wiki/Gruppo_della_tavola_periodica" title="Gruppo della tavola periodica">Gruppi</a><b> ·</b> <a href="/wiki/Periodo_della_tavola_periodica" title="Periodo della tavola periodica">Periodi</a><b> ·</b> <a href="/wiki/Blocco_della_tavola_periodica" title="Blocco della tavola periodica">Blocchi</a><b> ·</b> <a href="/wiki/Metallo" title="Metallo">Metalli</a><b> ·</b> <a href="/wiki/Metalloide" title="Metalloide">Metalloidi</a> (semimetalli)<b> ·</b> <a href="/wiki/Non_metallo" title="Non metallo">Non metalli</a><b> ·</b> <a href="/wiki/Lantanoidi" title="Lantanoidi">Lantanoidi</a><b> ·</b> <a href="/wiki/Attinoidi" title="Attinoidi">Attinoidi</a><b> ·</b> <a href="/wiki/Superattinidi" title="Superattinidi">Superattinidi</a><b> ·</b> <a href="/wiki/Unbibidi" title="Unbibidi">Unbibidi</a><b> ·</b> <a href="/wiki/Elementi_transuranici" title="Elementi transuranici">Elementi transuranici</a></td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r140554510">.mw-parser-output .CdA{border:1px solid #aaa;width:100%;margin:auto;font-size:90%;padding:2px}.mw-parser-output .CdA th{background-color:#f2f2f2;font-weight:bold;width:20%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .CdA{border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .CdA th{background-color:#202122}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .CdA{border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .CdA th{background-color:#202122}}</style><table class="CdA"><tbody><tr><th><a href="/wiki/Aiuto:Controllo_di_autorit%C3%A0" title="Aiuto:Controllo di autorità">Controllo di autorità</a></th><td><a href="/wiki/Nuovo_soggettario" title="Nuovo soggettario">Thesaurus BNCF</a> <span class="uid"><a rel="nofollow" class="external text" href="https://thes.bncf.firenze.sbn.it/termine.php?id=607">607</a></span><span style="font-weight:bold;"> ·</span> <a href="/wiki/Library_of_Congress_Control_Number" title="Library of Congress Control Number">LCCN</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="http://id.loc.gov/authorities/subjects/sh85096329">sh85096329</a></span><span style="font-weight:bold;"> ·</span> <a href="/wiki/Gemeinsame_Normdatei" title="Gemeinsame Normdatei">GND</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="tedesco">DE</abbr></span>) <a rel="nofollow" class="external text" href="https://d-nb.info/gnd/4051803-6">4051803-6</a></span><span style="font-weight:bold;"> ·</span> <a href="/wiki/Biblioteca_nazionale_di_Spagna" title="Biblioteca nazionale di Spagna">BNE</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="spagnolo">ES</abbr></span>) <a rel="nofollow" class="external text" href="http://catalogo.bne.es/uhtbin/authoritybrowse.cgi?action=display&authority_id=XX534245">XX534245</a> <a rel="nofollow" class="external text" href="http://datos.bne.es/resource/XX534245">(data)</a></span><span style="font-weight:bold;"> ·</span> <a href="/wiki/Biblioteca_nazionale_di_Francia" title="Biblioteca nazionale di Francia">BNF</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="francese">FR</abbr></span>) <a rel="nofollow" class="external text" href="https://catalogue.bnf.fr/ark:/12148/cb11977353d">cb11977353d</a> <a rel="nofollow" class="external text" href="https://data.bnf.fr/ark:/12148/cb11977353d">(data)</a></span><span style="font-weight:bold;"> ·</span> <a href="/wiki/Biblioteca_nazionale_di_Israele" title="Biblioteca nazionale di Israele">J9U</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr>, <abbr title="ebraico">HE</abbr></span>) <a rel="nofollow" class="external text" href="http://olduli.nli.org.il/F/?func=find-b&local_base=NLX10&find_code=UID&request=987007555738105171">987007555738105171</a></span><span style="font-weight:bold;"> ·</span> <a href="/wiki/Biblioteca_della_Dieta_nazionale_del_Giappone" title="Biblioteca della Dieta nazionale del Giappone">NDL</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr>, <abbr title="giapponese">JA</abbr></span>) <a rel="nofollow" class="external text" href="https://id.ndl.go.jp/auth/ndlna/00570181">00570181</a></span></td></tr></tbody></table> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"><div style="flex-basis: calc( 100% / 2 - 8px / 2 );"><style data-mw-deduplicate="TemplateStyles:r140555418">.mw-parser-output .itwiki-template-occhiello{width:100%;line-height:25px;border:1px solid #CCF;background-color:#F0EEFF;box-sizing:border-box}.mw-parser-output .itwiki-template-occhiello-progetto{background-color:#FAFAFA}@media screen{html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}</style><div class="itwiki-template-occhiello"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Gnome-applications-science.svg" class="mw-file-description" title="Chimica"><img alt=" " src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Gnome-applications-science.svg/25px-Gnome-applications-science.svg.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Gnome-applications-science.svg/38px-Gnome-applications-science.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Gnome-applications-science.svg/50px-Gnome-applications-science.svg.png 2x" data-file-width="48" data-file-height="48" /></a></span> <b><a href="/wiki/Portale:Chimica" title="Portale:Chimica">Portale Chimica</a></b></div></div><div style="flex-basis: calc( 100% / 2 - 8px / 2 );"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r140555418"><div class="itwiki-template-occhiello"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Asclepius_staff.svg" class="mw-file-description" title="Medicina"><img alt=" " src="//upload.wikimedia.org/wikipedia/commons/thumb/1/19/Asclepius_staff.svg/13px-Asclepius_staff.svg.png" decoding="async" width="13" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/19/Asclepius_staff.svg/19px-Asclepius_staff.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/19/Asclepius_staff.svg/25px-Asclepius_staff.svg.png 2x" data-file-width="512" data-file-height="995" /></a></span> <b><a href="/wiki/Portale:Medicina" title="Portale:Medicina">Portale Medicina</a></b></div></div></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Estratto da "<a dir="ltr" href="https://it.wikipedia.org/w/index.php?title=Ossigeno&oldid=139077929">https://it.wikipedia.org/w/index.php?title=Ossigeno&oldid=139077929</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Categoria:Categorie" title="Categoria:Categorie">Categorie</a>: <ul><li><a href="/wiki/Categoria:Elementi_chimici" title="Categoria:Elementi chimici">Elementi chimici</a></li><li><a href="/wiki/Categoria:Ossigeno" title="Categoria:Ossigeno">Ossigeno</a></li><li><a href="/wiki/Categoria:Fluidi_refrigeranti" title="Categoria:Fluidi refrigeranti">Fluidi refrigeranti</a></li><li><a href="/wiki/Categoria:Medicinali_essenziali_secondo_l%27Organizzazione_Mondiale_della_Sanit%C3%A0" title="Categoria:Medicinali essenziali secondo l'Organizzazione Mondiale della Sanità">Medicinali essenziali secondo l'Organizzazione Mondiale della Sanità</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categorie nascoste: <ul><li><a href="/wiki/Categoria:Template_Webarchive_-_collegamenti_all%27Internet_Archive" title="Categoria:Template Webarchive - collegamenti all'Internet Archive">Template Webarchive - collegamenti all'Internet Archive</a></li><li><a href="/wiki/Categoria:P3365_letta_da_Wikidata" title="Categoria:P3365 letta da Wikidata">P3365 letta da Wikidata</a></li><li><a href="/wiki/Categoria:P1417_letta_da_Wikidata" title="Categoria:P1417 letta da Wikidata">P1417 letta da Wikidata</a></li><li><a href="/wiki/Categoria:Voci_con_codice_Thesaurus_BNCF" title="Categoria:Voci con codice Thesaurus BNCF">Voci con codice Thesaurus BNCF</a></li><li><a href="/wiki/Categoria:Voci_con_codice_LCCN" title="Categoria:Voci con codice LCCN">Voci con codice LCCN</a></li><li><a href="/wiki/Categoria:Voci_con_codice_GND" title="Categoria:Voci con codice GND">Voci con codice GND</a></li><li><a href="/wiki/Categoria:Voci_con_codice_BNE" title="Categoria:Voci con codice BNE">Voci con codice BNE</a></li><li><a href="/wiki/Categoria:Voci_con_codice_BNF" title="Categoria:Voci con codice BNF">Voci con codice BNF</a></li><li><a href="/wiki/Categoria:Voci_con_codice_J9U" title="Categoria:Voci con codice J9U">Voci con codice J9U</a></li><li><a href="/wiki/Categoria:Voci_con_codice_NDL" title="Categoria:Voci con codice NDL">Voci con codice NDL</a></li><li><a href="/wiki/Categoria:Voci_non_biografiche_con_codici_di_controllo_di_autorit%C3%A0" title="Categoria:Voci non biografiche con codici di controllo di autorità">Voci non biografiche con codici di controllo di autorità</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Questa pagina è stata modificata per l'ultima volta il 30 apr 2024 alle 19:55.</li> <li id="footer-info-copyright">Il testo è disponibile secondo la <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.it">licenza Creative Commons Attribuzione-Condividi allo stesso modo</a>; possono applicarsi condizioni ulteriori. Vedi le <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use/it">condizioni d'uso</a> per i dettagli.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy/it">Informativa sulla privacy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:Sala_stampa/Wikipedia">Informazioni su Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:Avvertenze_generali">Avvertenze</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Codice di condotta</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Sviluppatori</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/it.wikipedia.org">Statistiche</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Dichiarazione sui cookie</a></li> <li id="footer-places-mobileview"><a href="//it.m.wikipedia.org/w/index.php?title=Ossigeno&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Versione mobile</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-fgzdv","wgBackendResponseTime":180,"wgPageParseReport":{"limitreport":{"cputime":"0.712","walltime":"1.030","ppvisitednodes":{"value":7258,"limit":1000000},"postexpandincludesize":{"value":282821,"limit":2097152},"templateargumentsize":{"value":9316,"limit":2097152},"expansiondepth":{"value":16,"limit":100},"expensivefunctioncount":{"value":3,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":38615,"limit":5000000},"entityaccesscount":{"value":1,"limit":400},"timingprofile":["100.00% 790.710 1 -total"," 26.59% 210.231 2 Template:Infobox"," 23.18% 183.289 1 Template:Elemento_chimico"," 18.71% 147.967 1 Template:Collegamenti_esterni"," 9.10% 71.950 4 Template:Vedi_anche"," 7.22% 57.050 16 Template:M"," 6.57% 51.939 7 Template:Cita_web"," 6.50% 51.424 1 Template:Elementi_chimici"," 6.11% 48.337 1 Template:Elemento_chimico/mini_tavola_periodica"," 6.00% 47.451 1 Template:Navbox"]},"scribunto":{"limitreport-timeusage":{"value":"0.330","limit":"10.000"},"limitreport-memusage":{"value":7571402,"limit":52428800}},"cachereport":{"origin":"mw-web.eqiad.main-5dc468848-vnxdp","timestamp":"20241123144136","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Ossigeno","url":"https:\/\/it.wikipedia.org\/wiki\/Ossigeno","sameAs":"http:\/\/www.wikidata.org\/entity\/Q629","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q629","author":{"@type":"Organization","name":"Contributori ai progetti Wikimedia"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2003-08-11T12:18:06Z","dateModified":"2024-04-30T18:55:45Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/d\/d9\/Hydrogenglow.jpg","headline":"elemento chimico con numero atomico 8"}</script> </body> </html>