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-enabled skin-theme-clientpref-day vector-toc-not-available" lang="el" dir="ltr"> <head> <meta charset="UTF-8"> <title>Στοιχείο Περιόδου 4 - Βικιπαίδεια</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-enabled skin-theme-clientpref-day vector-toc-not-available";var cookie=document.cookie.match(/(?:^|; )elwikimwclientpreferences=([^;]+)/);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":["","Ιανουάριος","Φεβρουάριος","Μάρτιος","Απριλίου","Μαΐου","Ιουνίου","Ιουλίου","Αύγουστος","Σεπτέμβριος","Οκτώβριος","Νοέμβριος","Δεκέμβριος"],"wgRequestId":"a01e156a-623b-4887-ba5c-821faa8dbdf4","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Στοιχείο_Περιόδου_4","wgTitle":"Στοιχείο Περιόδου 4","wgCurRevisionId":9764986,"wgRevisionId":9764986,"wgArticleId":671432,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Ομάδες χημικών στοιχείων"],"wgPageViewLanguage":"el","wgPageContentLanguage":"el","wgPageContentModel":"wikitext","wgRelevantPageName":"Στοιχείο_Περιόδου_4","wgRelevantArticleId":671432,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true ,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"el","pageLanguageDir":"ltr","pageVariantFallbacks":"el"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":1000,"wgRelatedArticlesCompat":[],"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q239825","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser": false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["site","mediawiki.page.ready","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.imagelinks","ext.gadget.wikibugs","ext.urlShortener.toolbar","ext.centralauth.centralautologin","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=el&modules=ext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.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=el&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=el&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.5"> <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 name="viewport" content="width=1120"> <meta property="og:title" content="Στοιχείο Περιόδου 4 - Βικιπαίδεια"> <meta property="og:type" content="website"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//el.m.wikipedia.org/wiki/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4"> <link rel="alternate" type="application/x-wiki" title="Επεξεργασία" href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&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="Βικιπαίδεια (el)"> <link rel="EditURI" type="application/rsd+xml" href="//el.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://el.wikipedia.org/wiki/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.el"> <link rel="alternate" type="application/atom+xml" title="Βικιπαίδεια ροή Atom" href="/w/index.php?title=%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%A0%CF%81%CF%8C%CF%83%CF%86%CE%B1%CF%84%CE%B5%CF%82%CE%91%CE%BB%CE%BB%CE%B1%CE%B3%CE%AD%CF%82&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-Στοιχείο_Περιόδου_4 rootpage-Στοιχείο_Περιόδου_4 skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Μετάβαση στο περιεχόμενο</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="Ιστότοπος"> <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="Κύριο μενού" > <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">Κύριο μενού</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">Κύριο μενού</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">μετακίνηση στην πλαϊνή μπάρα</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">απόκρυψη</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Πλοήγηση </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/%CE%A0%CF%8D%CE%BB%CE%B7:%CE%9A%CF%8D%CF%81%CE%B9%CE%B1" title="Επισκεφθείτε την αρχική σελίδα [z]" accesskey="z"><span>Κύρια πύλη</span></a></li><li id="n-Θεματικές-πύλες" class="mw-list-item"><a href="/wiki/%CE%A0%CF%8D%CE%BB%CE%B7:%CE%98%CE%AD%CE%BC%CE%B1%CF%84%CE%B1"><span>Θεματικές πύλες</span></a></li><li id="n-Featuredcontent" class="mw-list-item"><a href="/wiki/%CE%92%CE%B9%CE%BA%CE%B9%CF%80%CE%B1%CE%AF%CE%B4%CE%B5%CE%B9%CE%B1:%CE%A0%CF%81%CE%BF%CE%B2%CE%B5%CE%B2%CE%BB%CE%B7%CE%BC%CE%AD%CE%BD%CE%B1_%CE%BB%CE%AE%CE%BC%CE%BC%CE%B1%CF%84%CE%B1"><span>Προβεβλημένα λήμματα</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/%CE%A0%CF%8D%CE%BB%CE%B7:%CE%A4%CF%81%CE%AD%CF%87%CE%BF%CE%BD%CF%84%CE%B1_%CE%B3%CE%B5%CE%B3%CE%BF%CE%BD%CF%8C%CF%84%CE%B1" title="Βρείτε βασικές πληροφορίες για τρέχοντα γεγονότα"><span>Τρέχοντα γεγονότα</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%A4%CF%85%CF%87%CE%B1%CE%AF%CE%B1" title="Φόρτωση μιας τυχαίας σελίδας [x]" accesskey="x"><span>Τυχαίο λήμμα</span></a></li> </ul> </div> </div> <div id="p-Συμμετοχή" class="vector-menu mw-portlet mw-portlet-Συμμετοχή" > <div class="vector-menu-heading"> Συμμετοχή </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/%CE%92%CE%B9%CE%BA%CE%B9%CF%80%CE%B1%CE%AF%CE%B4%CE%B5%CE%B9%CE%B1:%CE%92%CE%BF%CE%AE%CE%B8%CE%B5%CE%B9%CE%B1" title="Το μέρος για να βρείτε αυτό που ψάχνετε"><span>Βοήθεια</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/%CE%92%CE%B9%CE%BA%CE%B9%CF%80%CE%B1%CE%AF%CE%B4%CE%B5%CE%B9%CE%B1:%CE%A0%CF%8D%CE%BB%CE%B7_%CE%9A%CE%BF%CE%B9%CE%BD%CF%8C%CF%84%CE%B7%CF%84%CE%B1%CF%82" title="Σχετικά με το εγχείρημα, τι μπορείτε να κάνετε, πού μπορείτε να βρείτε τι"><span>Πύλη Κοινότητας</span></a></li><li id="n-pump" class="mw-list-item"><a href="/wiki/%CE%92%CE%B9%CE%BA%CE%B9%CF%80%CE%B1%CE%AF%CE%B4%CE%B5%CE%B9%CE%B1:%CE%91%CE%B3%CE%BF%CF%81%CE%AC"><span>Αγορά</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%A0%CF%81%CF%8C%CF%83%CF%86%CE%B1%CF%84%CE%B5%CF%82%CE%91%CE%BB%CE%BB%CE%B1%CE%B3%CE%AD%CF%82" title="Λίστα πρόσφατων αλλαγών στο wiki [r]" accesskey="r"><span>Πρόσφατες αλλαγές</span></a></li><li id="n-Επικοινωνία" class="mw-list-item"><a href="/wiki/%CE%92%CE%B9%CE%BA%CE%B9%CF%80%CE%B1%CE%AF%CE%B4%CE%B5%CE%B9%CE%B1:%CE%95%CF%80%CE%B9%CE%BA%CE%BF%CE%B9%CE%BD%CF%89%CE%BD%CE%AF%CE%B1"><span>Επικοινωνία</span></a></li><li id="n-Δωρεές" class="mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserLandingPage?uselang=el&country=GR"><span>Δωρεές</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/%CE%A0%CF%8D%CE%BB%CE%B7:%CE%9A%CF%8D%CF%81%CE%B9%CE%B1" 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="Βικιπαίδεια" src="/static/images/mobile/copyright/wikipedia-wordmark-el.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="Η Ελεύθερη Εγκυκλοπαίδεια" src="/static/images/mobile/copyright/wikipedia-tagline-el.svg" width="120" height="10" style="width: 7.5em; height: 0.625em;"> </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/%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%91%CE%BD%CE%B1%CE%B6%CE%AE%CF%84%CE%B7%CF%83%CE%B7" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Αναζήτηση στη Βικιπαίδεια [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Αναζήτηση</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="Αναζήτηση σε Βικιπαίδεια" aria-label="Αναζήτηση σε Βικιπαίδεια" autocapitalize="sentences" title="Αναζήτηση στη Βικιπαίδεια [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Ειδικό:Αναζήτηση"> </div> <button class="cdx-button cdx-search-input__end-button">Αναζήτηση</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Προσωπικά εργαλεία"> <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="Εμφάνιση"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <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="Εμφάνιση" > <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">Εμφάνιση</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_el.wikipedia.org&uselang=el" class=""><span>Δωρεές</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=%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%94%CE%B7%CE%BC%CE%B9%CE%BF%CF%85%CF%81%CE%B3%CE%AF%CE%B1%CE%9B%CE%BF%CE%B3%CE%B1%CF%81%CE%B9%CE%B1%CF%83%CE%BC%CE%BF%CF%8D&returnto=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF+%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85+4" title="Σας ενθαρρύνουμε να δημιουργήσετε ένα λογαριασμό και να συνδεθείτε· ωστόσο, δεν είναι υποχρεωτικό" class=""><span>Δημιουργία λογαριασμού</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=%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%A3%CF%8D%CE%BD%CE%B4%CE%B5%CF%83%CE%B7%CE%A7%CF%81%CE%AE%CF%83%CF%84%CE%B7&returnto=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF+%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85+4" title="Σας ενθαρρύνουμε να συνδεθείτε· ωστόσο, δεν είναι υποχρεωτικό [o]" accesskey="o" class=""><span>Σύνδεση</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="Περισσότερες επιλογές" > <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="Προσωπικά εργαλεία" > <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">Προσωπικά εργαλεία</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Μενού χρήστη" > <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_el.wikipedia.org&uselang=el"><span>Δωρεές</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%94%CE%B7%CE%BC%CE%B9%CE%BF%CF%85%CF%81%CE%B3%CE%AF%CE%B1%CE%9B%CE%BF%CE%B3%CE%B1%CF%81%CE%B9%CE%B1%CF%83%CE%BC%CE%BF%CF%8D&returnto=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF+%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85+4" title="Σας ενθαρρύνουμε να δημιουργήσετε ένα λογαριασμό και να συνδεθείτε· ωστόσο, δεν είναι υποχρεωτικό"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Δημιουργία λογαριασμού</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%A3%CF%8D%CE%BD%CE%B4%CE%B5%CF%83%CE%B7%CE%A7%CF%81%CE%AE%CF%83%CF%84%CE%B7&returnto=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF+%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85+4" title="Σας ενθαρρύνουμε να συνδεθείτε· ωστόσο, δεν είναι υποχρεωτικό [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Σύνδεση</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"> Σελίδες για αποσυνδεμένους συντάκτες <a href="/wiki/%CE%92%CE%BF%CE%AE%CE%B8%CE%B5%CE%B9%CE%B1:%CE%95%CE%B9%CF%83%CE%B1%CE%B3%CF%89%CE%B3%CE%AE" aria-label="Μάθετε περισσότερα σχετικά με την επεξεργασία"><span>μάθετε περισσότερα</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/%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%9F%CE%B9%CE%A3%CF%85%CE%BD%CE%B5%CE%B9%CF%83%CF%86%CE%BF%CF%81%CE%AD%CF%82%CE%9C%CE%BF%CF%85" title="Μια λίστα με τις επεξεργασίες που έγιναν από αυτή τη διεύθυνση IP [y]" accesskey="y"><span>Συνεισφορές</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%97%CE%A3%CF%85%CE%B6%CE%AE%CF%84%CE%B7%CF%83%CE%AE%CE%9C%CE%BF%CF%85" title="Συζήτηση σχετικά με τις αλλαγές που έγιναν από αυτή τη διεύθυνση IP [n]" accesskey="n"><span>Συζήτηση για αυτή την IP</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="Ιστότοπος"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Στοιχείο Περιόδου 4</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="Μεταβείτε σε ένα λήμμα σε άλλη γλώσσα. Διαθέσιμο σε 48 γλώσσες" > <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-48" 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">48 γλώσσες</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/Periode_4_element" title="Periode 4 element – Αφρικάανς" lang="af" hreflang="af" data-title="Periode 4 element" data-language-autonym="Afrikaans" data-language-local-name="Αφρικάανς" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Elementos_d%27o_periodo_4" title="Elementos d'o periodo 4 – Αραγονικά" lang="an" hreflang="an" data-title="Elementos d'o periodo 4" data-language-autonym="Aragonés" data-language-local-name="Αραγονικά" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-anp mw-list-item"><a href="https://anp.wikipedia.org/wiki/%E0%A4%86%E0%A4%B5%E0%A4%B0%E0%A5%8D%E0%A4%A4_4_%E0%A4%A4%E0%A4%A4%E0%A5%8D%E0%A4%B5" title="आवर्त 4 तत्व – Ανγκικά" lang="anp" hreflang="anp" data-title="आवर्त 4 तत्व" data-language-autonym="अंगिका" data-language-local-name="Ανγκικά" class="interlanguage-link-target"><span>अंगिका</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B9%D9%86%D8%A7%D8%B5%D8%B1_%D8%A7%D9%84%D8%AF%D9%88%D8%B1%D8%A9_%D8%A7%D9%84%D8%B1%D8%A7%D8%A8%D8%B9%D8%A9" title="عناصر الدورة الرابعة – Αραβικά" lang="ar" hreflang="ar" data-title="عناصر الدورة الرابعة" data-language-autonym="العربية" data-language-local-name="Αραβικά" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Elementos_del_periodu_4" title="Elementos del periodu 4 – Αστουριανά" lang="ast" hreflang="ast" data-title="Elementos del periodu 4" data-language-autonym="Asturianu" data-language-local-name="Αστουριανά" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/D%C3%B6vri_sistemin_d%C3%B6rd%C3%BCnc%C3%BC_periodu" title="Dövri sistemin dördüncü periodu – Αζερμπαϊτζανικά" lang="az" hreflang="az" data-title="Dövri sistemin dördüncü periodu" data-language-autonym="Azərbaycanca" data-language-local-name="Αζερμπαϊτζανικά" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%AA%E0%A5%80%E0%A4%B0%E0%A4%BF%E0%A4%AF%E0%A4%A1_4_%E0%A4%A4%E0%A4%A4%E0%A5%8D%E0%A4%B5" title="पीरियड 4 तत्व – Bhojpuri" lang="bh" hreflang="bh" data-title="पीरियड 4 तत्व" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%9A%E0%A6%A4%E0%A7%81%E0%A6%B0%E0%A7%8D%E0%A6%A5_%E0%A6%AA%E0%A6%B0%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%AF%E0%A6%BC%E0%A7%87%E0%A6%B0_%E0%A6%AE%E0%A7%8C%E0%A6%B2" title="চতুর্থ পর্যায়ের মৌল – Βεγγαλικά" lang="bn" hreflang="bn" data-title="চতুর্থ পর্যায়ের মৌল" data-language-autonym="বাংলা" data-language-local-name="Βεγγαλικά" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Elements_del_per%C3%ADode_4" title="Elements del període 4 – Καταλανικά" lang="ca" hreflang="ca" data-title="Elements del període 4" data-language-autonym="Català" data-language-local-name="Καταλανικά" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/4._perioda" title="4. perioda – Τσεχικά" lang="cs" hreflang="cs" data-title="4. perioda" data-language-autonym="Čeština" data-language-local-name="Τσεχικά" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Elfen_cyfnod_4" title="Elfen cyfnod 4 – Ουαλικά" lang="cy" hreflang="cy" data-title="Elfen cyfnod 4" data-language-autonym="Cymraeg" data-language-local-name="Ουαλικά" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Periode_4-grundstof" title="Periode 4-grundstof – Δανικά" lang="da" hreflang="da" data-title="Periode 4-grundstof" data-language-autonym="Dansk" data-language-local-name="Δανικά" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Chemische_Elemente_der_vierten_Periode" title="Chemische Elemente der vierten Periode – Γερμανικά" lang="de" hreflang="de" data-title="Chemische Elemente der vierten Periode" data-language-autonym="Deutsch" data-language-local-name="Γερμανικά" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Period_4_element" title="Period 4 element – Αγγλικά" lang="en" hreflang="en" data-title="Period 4 element" data-language-autonym="English" data-language-local-name="Αγγλικά" 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/Elemento_de_periodo_4" title="Elemento de periodo 4 – Εσπεράντο" lang="eo" hreflang="eo" data-title="Elemento de periodo 4" data-language-autonym="Esperanto" data-language-local-name="Εσπεράντο" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Elementos_del_periodo_4" title="Elementos del periodo 4 – Ισπανικά" lang="es" hreflang="es" data-title="Elementos del periodo 4" data-language-autonym="Español" data-language-local-name="Ισπανικά" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/4._periodoko_elementu" title="4. periodoko elementu – Βασκικά" lang="eu" hreflang="eu" data-title="4. periodoko elementu" data-language-autonym="Euskara" data-language-local-name="Βασκικά" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B9%D9%86%D8%B5%D8%B1_%D8%AF%D9%88%D8%B1%D9%87_%DB%B4" title="عنصر دوره ۴ – Περσικά" lang="fa" hreflang="fa" data-title="عنصر دوره ۴" data-language-autonym="فارسی" data-language-local-name="Περσικά" 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/Jakson_4_alkuaine" title="Jakson 4 alkuaine – Φινλανδικά" lang="fi" hreflang="fi" data-title="Jakson 4 alkuaine" data-language-autonym="Suomi" data-language-local-name="Φινλανδικά" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/P%C3%A9riode_4_du_tableau_p%C3%A9riodique" title="Période 4 du tableau périodique – Γαλλικά" lang="fr" hreflang="fr" data-title="Période 4 du tableau périodique" data-language-autonym="Français" data-language-local-name="Γαλλικά" 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/Periode-4-Element" title="Periode-4-Element – Βόρεια Φριζιανά" lang="frr" hreflang="frr" data-title="Periode-4-Element" data-language-autonym="Nordfriisk" data-language-local-name="Βόρεια Φριζιανά" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Elementos_de_periodo_4" title="Elementos de periodo 4 – Ιντερλίνγκουα" lang="ia" hreflang="ia" data-title="Elementos de periodo 4" data-language-autonym="Interlingua" data-language-local-name="Ιντερλίνγκουα" 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/Unsur_periode_4" title="Unsur periode 4 – Ινδονησιακά" lang="id" hreflang="id" data-title="Unsur periode 4" data-language-autonym="Bahasa Indonesia" data-language-local-name="Ινδονησιακά" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Elementi_del_periodo_4" title="Elementi del periodo 4 – Ιταλικά" lang="it" hreflang="it" data-title="Elementi del periodo 4" data-language-autonym="Italiano" data-language-local-name="Ιταλικά" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E7%AC%AC4%E5%91%A8%E6%9C%9F%E5%85%83%E7%B4%A0" title="第4周期元素 – Ιαπωνικά" lang="ja" hreflang="ja" data-title="第4周期元素" data-language-autonym="日本語" data-language-local-name="Ιαπωνικά" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/4%EC%A3%BC%EA%B8%B0_%EC%9B%90%EC%86%8C" title="4주기 원소 – Κορεατικά" lang="ko" hreflang="ko" data-title="4주기 원소" data-language-autonym="한국어" data-language-local-name="Κορεατικά" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Elementum_periodi_quartae" title="Elementum periodi quartae – Λατινικά" lang="la" hreflang="la" data-title="Elementum periodi quartae" data-language-autonym="Latina" data-language-local-name="Λατινικά" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Element_del_period_4" title="Element del period 4 – Lombard" lang="lmo" hreflang="lmo" data-title="Element del period 4" data-language-autonym="Lombard" data-language-local-name="Lombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/IV_%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4%D0%B0_%D0%BD%D0%B0_%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4%D0%BD%D0%B8%D0%BE%D1%82_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC" title="IV периода на периодниот систем – Σλαβομακεδονικά" lang="mk" hreflang="mk" data-title="IV периода на периодниот систем" data-language-autonym="Македонски" data-language-local-name="Σλαβομακεδονικά" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Unsur_kala_4" title="Unsur kala 4 – Μαλαισιανά" lang="ms" hreflang="ms" data-title="Unsur kala 4" data-language-autonym="Bahasa Melayu" data-language-local-name="Μαλαισιανά" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Periode-4-element" title="Periode-4-element – Ολλανδικά" lang="nl" hreflang="nl" data-title="Periode-4-element" data-language-autonym="Nederlands" data-language-local-name="Ολλανδικά" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AA%E0%A9%80%E0%A8%B0%E0%A8%A1_4_%E0%A8%A4%E0%A9%B1%E0%A8%A4" title="ਪੀਰਡ 4 ਤੱਤ – Παντζαπικά" lang="pa" hreflang="pa" data-title="ਪੀਰਡ 4 ਤੱਤ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="Παντζαπικά" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Pierwiastki_czwartego_okresu" title="Pierwiastki czwartego okresu – Πολωνικά" lang="pl" hreflang="pl" data-title="Pierwiastki czwartego okresu" data-language-autonym="Polski" data-language-local-name="Πολωνικά" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Elementele_perioadei_4" title="Elementele perioadei 4 – Ρουμανικά" lang="ro" hreflang="ro" data-title="Elementele perioadei 4" data-language-autonym="Română" data-language-local-name="Ρουμανικά" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A7%D0%B5%D1%82%D0%B2%D1%91%D1%80%D1%82%D1%8B%D0%B9_%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4_%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B9_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D1%8B" title="Четвёртый период периодической системы – Ρωσικά" lang="ru" hreflang="ru" data-title="Четвёртый период периодической системы" data-language-autonym="Русский" data-language-local-name="Ρωσικά" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Elementi_4._periode" title="Elementi 4. periode – Σερβοκροατικά" lang="sh" hreflang="sh" data-title="Elementi 4. periode" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Σερβοκροατικά" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Period_4_element" title="Period 4 element – Simple English" lang="en-simple" hreflang="en-simple" data-title="Period 4 element" 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/4._peri%C3%B3da" title="4. perióda – Σλοβακικά" lang="sk" hreflang="sk" data-title="4. perióda" data-language-autonym="Slovenčina" data-language-local-name="Σλοβακικά" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Element_4._periode" title="Element 4. periode – Σλοβενικά" lang="sl" hreflang="sl" data-title="Element 4. periode" data-language-autonym="Slovenščina" data-language-local-name="Σλοβενικά" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/4._%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4%D0%B0_%D1%85%D0%B5%D0%BC%D0%B8%D1%98%D1%81%D0%BA%D0%B8%D1%85_%D0%B5%D0%BB%D0%B5%D0%BC%D0%B5%D0%BD%D0%B0%D1%82%D0%B0" title="4. периода хемијских елемената – Σερβικά" lang="sr" hreflang="sr" data-title="4. периода хемијских елемената" data-language-autonym="Српски / srpski" data-language-local-name="Σερβικά" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AE%BF%E0%AE%9F%E0%AF%88%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AF%81%E0%AE%B4%E0%AF%81_4_%E0%AE%A4%E0%AE%A9%E0%AE%BF%E0%AE%AE%E0%AE%99%E0%AF%8D%E0%AE%95%E0%AE%B3%E0%AF%8D" title="கிடைக்குழு 4 தனிமங்கள் – Ταμιλικά" lang="ta" hreflang="ta" data-title="கிடைக்குழு 4 தனிமங்கள்" data-language-autonym="தமிழ்" data-language-local-name="Ταμιλικά" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%AA%E0%B1%80%E0%B0%B0%E0%B0%BF%E0%B0%AF%E0%B0%A1%E0%B1%8D_4_%E0%B0%AE%E0%B1%82%E0%B0%B2%E0%B0%95%E0%B0%82" title="పీరియడ్ 4 మూలకం – Τελούγκου" lang="te" hreflang="te" data-title="పీరియడ్ 4 మూలకం" data-language-autonym="తెలుగు" data-language-local-name="Τελούγκου" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%98%E0%B8%B2%E0%B8%95%E0%B8%B8%E0%B8%84%E0%B8%B2%E0%B8%9A_4" title="ธาตุคาบ 4 – Ταϊλανδικά" lang="th" hreflang="th" data-title="ธาตุคาบ 4" data-language-autonym="ไทย" data-language-local-name="Ταϊλανδικά" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/4._periyot_elementi" title="4. periyot elementi – Τουρκικά" lang="tr" hreflang="tr" data-title="4. periyot elementi" data-language-autonym="Türkçe" data-language-local-name="Τουρκικά" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9F%D0%B5%D1%80%D1%96%D0%BE%D0%B4_4_%D0%BF%D0%B5%D1%80%D1%96%D0%BE%D0%B4%D0%B8%D1%87%D0%BD%D0%BE%D1%97_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B8_%D0%B5%D0%BB%D0%B5%D0%BC%D0%B5%D0%BD%D1%82%D1%96%D0%B2" title="Період 4 періодичної системи елементів – Ουκρανικά" lang="uk" hreflang="uk" data-title="Період 4 періодичної системи елементів" data-language-autonym="Українська" data-language-local-name="Ουκρανικά" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Nguy%C3%AAn_t%E1%BB%91_chu_k%E1%BB%B3_4" title="Nguyên tố chu kỳ 4 – Βιετναμικά" lang="vi" hreflang="vi" data-title="Nguyên tố chu kỳ 4" data-language-autonym="Tiếng Việt" data-language-local-name="Βιετναμικά" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%AC%AC4%E5%91%A8%E6%9C%9F%E5%85%83%E7%B4%A0" title="第4周期元素 – Κινεζικά" lang="zh" hreflang="zh" data-title="第4周期元素" data-language-autonym="中文" data-language-local-name="Κινεζικά" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%AC%AC4%E9%80%B1%E6%9C%9F%E5%85%83%E7%B4%A0" title="第4週期元素 – Καντονέζικα" lang="yue" hreflang="yue" data-title="第4週期元素" data-language-autonym="粵語" data-language-local-name="Καντονέζικα" class="interlanguage-link-target"><span>粵語</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/Q239825#sitelinks-wikipedia" title="Επεξεργασία διαγλωσσικών συνδέσεων" class="wbc-editpage">Επεξεργασία συνδέσμων</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="Ονοματοχώροι"> <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/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4" title="Προβολή της σελίδας περιεχομένου [c]" accesskey="c"><span>Λήμμα</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%CE%A3%CF%85%CE%B6%CE%AE%CF%84%CE%B7%CF%83%CE%B7:%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&action=edit&redlink=1" rel="discussion" class="new" title="Συζήτηση για τη σελίδα περιεχομένου (δεν έχει γραφτεί ακόμα) [t]" accesskey="t"><span>Συζήτηση</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="Αλλαγή παραλλαγής γλώσσας" > <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">Ελληνικά</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="Προβολές"> <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/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4"><span>Ανάγνωση</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&veaction=edit" title="Επεξεργασία αυτής της σελίδας [v]" accesskey="v"><span>Επεξεργασία</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&action=edit" title="Επεξεργασία του πηγαίου κώδικα της σελίδας [e]" accesskey="e"><span>Επεξεργασία κώδικα</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&action=history" title="Παλιές αναθεωρήσεις της σελίδας [h]" accesskey="h"><span>Προβολή ιστορικού</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Εργαλεία σελίδων"> <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="Εργαλεία" > <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">Εργαλεία</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">Εργαλεία</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">μετακίνηση στην πλαϊνή μπάρα</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">απόκρυψη</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Περισσότερες επιλογές" > <div class="vector-menu-heading"> Ενέργειες </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/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4"><span>Ανάγνωση</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&veaction=edit" title="Επεξεργασία αυτής της σελίδας [v]" accesskey="v"><span>Επεξεργασία</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&action=edit" title="Επεξεργασία του πηγαίου κώδικα της σελίδας [e]" accesskey="e"><span>Επεξεργασία κώδικα</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&action=history"><span>Προβολή ιστορικού</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Γενικά </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%A4%CE%B9%CE%A3%CF%85%CE%BD%CE%B4%CE%AD%CE%B5%CE%B9%CE%95%CE%B4%CF%8E/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4" title="Κατάλογος όλων των σελίδων wiki που έχουν συνδέσμους προς εδώ [j]" accesskey="j"><span>Συνδέσεις προς εδώ</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%A3%CF%85%CE%BD%CE%B4%CE%B5%CE%B4%CE%B5%CE%BC%CE%AD%CE%BD%CE%B5%CF%82%CE%A0%CF%81%CF%8C%CF%83%CF%86%CE%B1%CF%84%CE%B5%CF%82%CE%91%CE%BB%CE%BB%CE%B1%CE%B3%CE%AD%CF%82/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4" rel="nofollow" title="Πρόσφατες αλλαγές σε σελίδες που παραπέμπουν οι σύνδεσμοι αυτής της σελίδας [k]" accesskey="k"><span>Σχετικές αλλαγές</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CE%AD%CF%82%CE%A3%CE%B5%CE%BB%CE%AF%CE%B4%CE%B5%CF%82" title="Κατάλογος με όλες τις ειδικές σελίδες [q]" accesskey="q"><span>Ειδικές σελίδες</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&oldid=9764986" title="Μόνιμος σύνδεσμος προς αυτήν την αναθεώρηση αυτής της σελίδας"><span>Σταθερός σύνδεσμος</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&action=info" title="Περισσότερες πληροφορίες σχετικά με αυτήν τη σελίδα"><span>Πληροφορίες σελίδας</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%A0%CE%B1%CF%81%CE%B1%CF%80%CE%BF%CE%BC%CF%80%CE%AE%CE%91%CF%85%CF%84%CE%AE%CE%A4%CE%B7%CE%A3%CE%B5%CE%BB%CE%AF%CE%B4%CE%B1&page=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&id=9764986&wpFormIdentifier=titleform" title="Πληροφορίες για το πώς να δημιουργήσετε παραπομπή αυτής της σελίδας"><span>Παραπομπή</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:UrlShortener&url=https%3A%2F%2Fel.wikipedia.org%2Fwiki%2F%25CE%25A3%25CF%2584%25CE%25BF%25CE%25B9%25CF%2587%25CE%25B5%25CE%25AF%25CE%25BF_%25CE%25A0%25CE%25B5%25CF%2581%25CE%25B9%25CF%258C%25CE%25B4%25CE%25BF%25CF%2585_4"><span>Λάβετε συντομευμένη διεύθυνση URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:QrCode&url=https%3A%2F%2Fel.wikipedia.org%2Fwiki%2F%25CE%25A3%25CF%2584%25CE%25BF%25CE%25B9%25CF%2587%25CE%25B5%25CE%25AF%25CE%25BF_%25CE%25A0%25CE%25B5%25CF%2581%25CE%25B9%25CF%258C%25CE%25B4%25CE%25BF%25CF%2585_4"><span>Λήψη κωδικού 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"> Εκτύπωση/εξαγωγή </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=%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%A3%CF%85%CE%BB%CE%BB%CE%BF%CE%B3%CE%AE&bookcmd=book_creator&referer=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF+%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85+4"><span>Δημιουργία βιβλίου</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:DownloadAsPdf&page=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&action=show-download-screen"><span>Κατέβασμα ως PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&printable=yes" title="Εκτυπώσιμη έκδοση αυτής της σελίδας [p]" accesskey="p"><span>Εκτυπώσιμη έκδοση</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"> Σε άλλα εγχειρήματα </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/Category:Periodic_table_row_4" hreflang="en"><span>Wikimedia Commons</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/Q239825" title="Σύνδεσμος προς το συνδεδεμένο αντικείμενο δεδομένων [g]" accesskey="g"><span>Αντικείμενο 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="Εργαλεία σελίδων"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Εμφάνιση"> <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">Εμφάνιση</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">μετακίνηση στην πλαϊνή μπάρα</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">απόκρυψη</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">Από τη Βικιπαίδεια, την ελεύθερη εγκυκλοπαίδεια</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="el" dir="ltr"><p>Ένα <b>στοιχείο περιόδου 4</b> είναι ένα από τα <a href="/wiki/%CE%A7%CE%B7%CE%BC%CE%B9%CE%BA%CF%8C_%CF%83%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF" title="Χημικό στοιχείο">χημικά στοιχεία</a> στην τέταρτη σειρά (ή περίοδο) του περιοδικού πίνακα των στοιχείων. Ο <a href="/wiki/%CE%A0%CE%B5%CF%81%CE%B9%CE%BF%CE%B4%CE%B9%CE%BA%CF%8C%CF%82_%CF%80%CE%AF%CE%BD%CE%B1%CE%BA%CE%B1%CF%82" class="mw-redirect" title="Περιοδικός πίνακας">περιοδικός πίνακας</a> παρουσιάζεται σε σειρές για να επεξηγηθούν οι επαναλαμβανόμενες (περιοδικές) τάσεις στη <a href="/wiki/%CE%A7%CE%B7%CE%BC%CE%B5%CE%AF%CE%B1" title="Χημεία">χημική</a> συμπεριφορά των στοιχείων καθώς αυξάνεται ο ατομικός τους αριθμός, αρχίζει μια νέα σειρά όταν αρχίζει να επαναλαμβάνεται η χημική συμπεριφορά, πράγμα που σημαίνει ότι τα στοιχεία με παρόμοια συμπεριφορά εμπίπτουν στις ίδιες κάθετες στήλες. Η τέταρτη περίοδος περιλαμβάνει 18 στοιχεία που ξεκινούν με <a href="/wiki/%CE%9A%CE%AC%CE%BB%CE%B9%CE%BF" title="Κάλιο">κάλιο</a> και τελειώνουν με <a href="/wiki/%CE%9A%CF%81%CF%85%CF%80%CF%84%CF%8C" title="Κρυπτό">κρυπτό</a>. Βλέπει την πρώτη εμφάνιση του "<a href="/wiki/%CE%A4%CE%BF%CE%BC%CE%AD%CE%B1%CF%82-d" class="mw-redirect" title="Τομέας-d">τομέα d</a>" στον πίνακα. </p> <table class="navbox collapsible" style="width:100%;" align="center"> <tbody><tr> <th colspan="33"><div class="noprint plainlinksneverexpand" style="background-color:transparent; padding:0; white-space:nowrap; font-weight:normal; font-size:xx-small; ; float:left; text-align:left; width:6em;"><a href="/wiki/%CE%A0%CF%81%CF%8C%CF%84%CF%85%CF%80%CE%BF:%CE%A0%CE%B5%CF%81%CE%B9%CE%BF%CE%B4%CE%B9%CE%BA%CF%8C%CF%82_%CF%80%CE%AF%CE%BD%CE%B1%CE%BA%CE%B1%CF%82" title="Πρότυπο:Περιοδικός πίνακας"><span title="Προβολή του προτύπου" style=";">π</span></a> <span style="font-size:80%;">•</span> <a href="/wiki/%CE%A3%CF%85%CE%B6%CE%AE%CF%84%CE%B7%CF%83%CE%B7_%CF%80%CF%81%CE%BF%CF%84%CF%8D%CF%80%CE%BF%CF%85:%CE%A0%CE%B5%CF%81%CE%B9%CE%BF%CE%B4%CE%B9%CE%BA%CF%8C%CF%82_%CF%80%CE%AF%CE%BD%CE%B1%CE%BA%CE%B1%CF%82" title="Συζήτηση προτύπου:Περιοδικός πίνακας"><span style="color:#002bb8;;" title="Συζήτηση για το πρότυπο">σ</span></a> <span style="font-size:80%;">•</span> <a class="external text" href="https://el.wikipedia.org/w/index.php?title=%CE%A0%CF%81%CF%8C%CF%84%CF%85%CF%80%CE%BF:%CE%A0%CE%B5%CF%81%CE%B9%CE%BF%CE%B4%CE%B9%CE%BA%CF%8C%CF%82_%CF%80%CE%AF%CE%BD%CE%B1%CE%BA%CE%B1%CF%82&action=edit"><span style="color:#002bb8;;" title="Επεξεργασία προτύπου. Παρακαλούμε χρησιμοποιείτε την προεπισκόπηση.">ε</span></a></div><span style="font-size:110%;"><a href="/wiki/%CE%A0%CE%B5%CF%81%CE%B9%CE%BF%CE%B4%CE%B9%CE%BA%CF%8C%CF%82_%CF%80%CE%AF%CE%BD%CE%B1%CE%BA%CE%B1%CF%82_%CF%84%CF%89%CE%BD_%CF%87%CE%B7%CE%BC%CE%B9%CE%BA%CF%8E%CE%BD_%CF%83%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CF%89%CE%BD" title="Περιοδικός πίνακας των χημικών στοιχείων">Περιοδικός πίνακας</a></span> </th></tr> <tr> <td><a href="/wiki/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_1" title="Στοιχείο Περιόδου 1">1</a> </td> <td width="3.125%" style="background-color:#00ffa0"><a href="/wiki/%CE%A5%CE%B4%CF%81%CE%BF%CE%B3%CF%8C%CE%BD%CE%BF" title="Υδρογόνο">H</a> </td> <td width="3.125%" colspan="30">  </td> <td width="3.125%" style="background-color:#c0ffff"><a href="/wiki/%CE%89%CE%BB%CE%B9%CE%BF" title="Ήλιο">He</a> </td></tr> <tr> <td><a href="/wiki/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_2" title="Στοιχείο Περιόδου 2">2</a> </td> <td style="background-color:#ff6666"><a href="/wiki/%CE%9B%CE%AF%CE%B8%CE%B9%CE%BF" title="Λίθιο">Li</a> </td> <td style="background-color:#ffdead"><a href="/wiki/%CE%92%CE%B7%CF%81%CF%8D%CE%BB%CE%BB%CE%B9%CE%BF" title="Βηρύλλιο">Be</a> </td> <td colspan="24">  </td> <td style="background-color:#cccc99"><a href="/wiki/%CE%92%CF%8C%CF%81%CE%B9%CE%BF" title="Βόριο">B</a> </td> <td style="background-color:#00ffa0"><a href="/wiki/%CE%86%CE%BD%CE%B8%CF%81%CE%B1%CE%BA%CE%B1%CF%82" title="Άνθρακας">C</a> </td> <td style="background-color:#00ffa0"><a href="/wiki/%CE%86%CE%B6%CF%89%CF%84%CE%BF" title="Άζωτο">N</a> </td> <td style="background-color:#00ffa0"><a href="/wiki/%CE%9F%CE%BE%CF%85%CE%B3%CF%8C%CE%BD%CE%BF" title="Οξυγόνο">O</a> </td> <td style="background-color:#ffff99"><a href="/wiki/%CE%A6%CE%B8%CF%8C%CF%81%CE%B9%CE%BF" title="Φθόριο">F</a> </td> <td style="background-color:#c0ffff"><a href="/wiki/%CE%9D%CE%AD%CE%BF%CE%BD" title="Νέον">Ne</a> </td></tr> <tr> <td><a href="/wiki/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_3" title="Στοιχείο Περιόδου 3">3</a> </td> <td style="background-color:#ff6666"><a href="/wiki/%CE%9D%CE%AC%CF%84%CF%81%CE%B9%CE%BF" title="Νάτριο">Na</a> </td> <td style="background-color:#ffdead"><a href="/wiki/%CE%9C%CE%B1%CE%B3%CE%BD%CE%AE%CF%83%CE%B9%CE%BF" title="Μαγνήσιο">Mg</a> </td> <td colspan="24">  </td> <td style="background-color:#cccccc"><a href="/wiki/%CE%91%CF%81%CE%B3%CE%AF%CE%BB%CE%B9%CE%BF" title="Αργίλιο">Al</a> </td> <td style="background-color:#cccc99"><a href="/wiki/%CE%A0%CF%85%CF%81%CE%AF%CF%84%CE%B9%CE%BF" title="Πυρίτιο">Si</a> </td> <td style="background-color:#00ffa0"><a href="/wiki/%CE%A6%CF%89%CF%83%CF%86%CF%8C%CF%81%CE%BF%CF%82" title="Φωσφόρος">P</a> </td> <td style="background-color:#00ffa0"><a href="/wiki/%CE%98%CE%B5%CE%AF%CE%BF" title="Θείο">S</a> </td> <td style="background-color:#ffff99"><a href="/wiki/%CE%A7%CE%BB%CF%8E%CF%81%CE%B9%CE%BF" title="Χλώριο">Cl</a> </td> <td style="background-color:#c0ffff"><a href="/wiki/%CE%91%CF%81%CE%B3%CF%8C" title="Αργό">Ar</a> </td></tr> <tr> <td><a class="mw-selflink selflink">4</a> </td> <td style="background-color:#ff6666"><a href="/wiki/%CE%9A%CE%AC%CE%BB%CE%B9%CE%BF" title="Κάλιο">K</a> </td> <td style="background-color:#ffdead"><a href="/wiki/%CE%91%CF%83%CE%B2%CE%AD%CF%83%CF%84%CE%B9%CE%BF" title="Ασβέστιο">Ca</a> </td> <td colspan="14">  </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A3%CE%BA%CE%AC%CE%BD%CE%B4%CE%B9%CE%BF" title="Σκάνδιο">Sc</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A4%CE%B9%CF%84%CE%AC%CE%BD%CE%B9%CE%BF" title="Τιτάνιο">Ti</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%92%CE%B1%CE%BD%CE%AC%CE%B4%CE%B9%CE%BF" title="Βανάδιο">V</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A7%CF%81%CF%8E%CE%BC%CE%B9%CE%BF" title="Χρώμιο">Cr</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9C%CE%B1%CE%B3%CE%B3%CE%AC%CE%BD%CE%B9%CE%BF" title="Μαγγάνιο">Mn</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A3%CE%AF%CE%B4%CE%B7%CF%81%CE%BF%CF%82" title="Σίδηρος">Fe</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9A%CE%BF%CE%B2%CE%AC%CE%BB%CF%84%CE%B9%CE%BF" title="Κοβάλτιο">Co</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9D%CE%B9%CE%BA%CE%AD%CE%BB%CE%B9%CE%BF" title="Νικέλιο">Ni</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A7%CE%B1%CE%BB%CE%BA%CF%8C%CF%82" title="Χαλκός">Cu</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A8%CE%B5%CF%85%CE%B4%CE%AC%CF%81%CE%B3%CF%85%CF%81%CE%BF%CF%82" title="Ψευδάργυρος">Zn</a> </td> <td style="background-color:#cccccc"><a href="/wiki/%CE%93%CE%AC%CE%BB%CE%BB%CE%B9%CE%BF" title="Γάλλιο">Ga</a> </td> <td style="background-color:#cccc99"><a href="/wiki/%CE%93%CE%B5%CF%81%CE%BC%CE%AC%CE%BD%CE%B9%CE%BF" title="Γερμάνιο">Ge</a> </td> <td style="background-color:#cccc99"><a href="/wiki/%CE%91%CF%81%CF%83%CE%B5%CE%BD%CE%B9%CE%BA%CF%8C_(%CF%83%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF)" title="Αρσενικό (στοιχείο)">As</a> </td> <td style="background-color:#00ffa0"><a href="/wiki/%CE%A3%CE%B5%CE%BB%CE%AE%CE%BD%CE%B9%CE%BF" title="Σελήνιο">Se</a> </td> <td style="background-color:#ffff99"><a href="/wiki/%CE%92%CF%81%CF%8E%CE%BC%CE%B9%CE%BF" title="Βρώμιο">Br</a> </td> <td style="background-color:#c0ffff"><a href="/wiki/%CE%9A%CF%81%CF%85%CF%80%CF%84%CF%8C" title="Κρυπτό">Kr</a> </td></tr> <tr> <td><a href="/wiki/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_5" title="Στοιχείο Περιόδου 5">5</a> </td> <td style="background-color:#ff6666"><a href="/wiki/%CE%A1%CE%BF%CF%85%CE%B2%CE%AF%CE%B4%CE%B9%CE%BF" title="Ρουβίδιο">Rb</a> </td> <td style="background-color:#ffdead"><a href="/wiki/%CE%A3%CF%84%CF%81%CF%8C%CE%BD%CF%84%CE%B9%CE%BF" title="Στρόντιο">Sr</a> </td> <td colspan="14">  </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%8E%CF%84%CF%84%CF%81%CE%B9%CE%BF" title="Ύττριο">Y</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%96%CE%B9%CF%81%CE%BA%CF%8C%CE%BD%CE%B9%CE%BF" title="Ζιρκόνιο">Zr</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9D%CE%B9%CF%8C%CE%B2%CE%B9%CE%BF" title="Νιόβιο">Nb</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9C%CE%BF%CE%BB%CF%85%CE%B2%CE%B4%CE%B1%CE%AF%CE%BD%CE%B9%CE%BF" title="Μολυβδαίνιο">Mo</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A4%CE%B5%CF%87%CE%BD%CE%AE%CF%84%CE%B9%CE%BF" title="Τεχνήτιο">Tc</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A1%CE%BF%CF%85%CE%B8%CE%AE%CE%BD%CE%B9%CE%BF" title="Ρουθήνιο">Ru</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A1%CF%8C%CE%B4%CE%B9%CE%BF" title="Ρόδιο">Rh</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A0%CE%B1%CE%BB%CE%BB%CE%AC%CE%B4%CE%B9%CE%BF" title="Παλλάδιο">Pd</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%86%CF%81%CE%B3%CF%85%CF%81%CE%BF%CF%82" title="Άργυρος">Ag</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9A%CE%AC%CE%B4%CE%BC%CE%B9%CE%BF" title="Κάδμιο">Cd</a> </td> <td style="background-color:#cccccc"><a href="/wiki/%CE%8A%CE%BD%CE%B4%CE%B9%CE%BF" title="Ίνδιο">In</a> </td> <td style="background-color:#cccccc"><a href="/wiki/%CE%9A%CE%B1%CF%83%CF%83%CE%AF%CF%84%CE%B5%CF%81%CE%BF%CF%82" title="Κασσίτερος">Sn</a> </td> <td style="background-color:#cccc99"><a href="/wiki/%CE%91%CE%BD%CF%84%CE%B9%CE%BC%CF%8C%CE%BD%CE%B9%CE%BF" title="Αντιμόνιο">Sb</a> </td> <td style="background-color:#cccc99"><a href="/wiki/%CE%A4%CE%B5%CE%BB%CE%BB%CE%BF%CF%8D%CF%81%CE%B9%CE%BF" title="Τελλούριο">Te</a> </td> <td style="background-color:#ffff99"><a href="/wiki/%CE%99%CF%8E%CE%B4%CE%B9%CE%BF" title="Ιώδιο">I</a> </td> <td style="background-color:#c0ffff"><a href="/wiki/%CE%9E%CE%AD%CE%BD%CE%BF" title="Ξένο">Xe</a> </td></tr> <tr> <td><a href="/wiki/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_6" title="Στοιχείο Περιόδου 6">6</a> </td> <td width="3.125%" style="background-color:#ff6666"><a href="/wiki/%CE%9A%CE%B1%CE%AF%CF%83%CE%B9%CE%BF" title="Καίσιο">Cs</a> </td> <td width="3.125%" style="background-color:#ffdead"><a href="/wiki/%CE%92%CE%AC%CF%81%CE%B9%CE%BF" title="Βάριο">Ba</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%9B%CE%B1%CE%BD%CE%B8%CE%AC%CE%BD%CE%B9%CE%BF" title="Λανθάνιο">La</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%94%CE%B7%CE%BC%CE%AE%CF%84%CF%81%CE%B9%CE%BF" title="Δημήτριο">Ce</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%A0%CF%81%CE%B1%CF%83%CE%B9%CE%BD%CE%BF%CE%B4%CF%8D%CE%BC%CE%B9%CE%BF" class="mw-redirect" title="Πρασινοδύμιο">Pr</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%9D%CE%B5%CE%BF%CE%B4%CF%8D%CE%BC%CE%B9%CE%BF" title="Νεοδύμιο">Nd</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%A0%CF%81%CE%BF%CE%BC%CE%AE%CE%B8%CE%B5%CE%B9%CE%BF" title="Προμήθειο">Pm</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%A3%CE%B1%CE%BC%CE%AC%CF%81%CE%B9%CE%BF" title="Σαμάριο">Sm</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%95%CF%85%CF%81%CF%8E%CF%80%CE%B9%CE%BF" title="Ευρώπιο">Eu</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%93%CE%B1%CE%B4%CE%BF%CE%BB%CE%AF%CE%BD%CE%B9%CE%BF" title="Γαδολίνιο">Gd</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%A4%CE%AD%CF%81%CE%B2%CE%B9%CE%BF" title="Τέρβιο">Tb</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%94%CF%85%CF%83%CF%80%CF%81%CF%8C%CF%83%CE%B9%CE%BF" title="Δυσπρόσιο">Dy</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%8C%CE%BB%CE%BC%CE%B9%CE%BF" title="Όλμιο">Ho</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%88%CF%81%CE%B2%CE%B9%CE%BF" title="Έρβιο">Er</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%98%CE%BF%CF%8D%CE%BB%CE%B9%CE%BF" title="Θούλιο">Tm</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%A5%CF%84%CF%84%CE%AD%CF%81%CE%B2%CE%B9%CE%BF" title="Υττέρβιο">Yb</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/%CE%9B%CE%BF%CF%85%CF%84%CE%AE%CF%84%CE%B9%CE%BF" title="Λουτήτιο">Lu</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/%CE%86%CF%86%CE%BD%CE%B9%CE%BF" title="Άφνιο">Hf</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/%CE%A4%CE%B1%CE%BD%CF%84%CE%AC%CE%BB%CE%B9%CE%BF" title="Ταντάλιο">Ta</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/%CE%92%CE%BF%CE%BB%CF%86%CF%81%CE%AC%CE%BC%CE%B9%CE%BF" title="Βολφράμιο">W</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/%CE%A1%CE%AE%CE%BD%CE%B9%CE%BF" title="Ρήνιο">Re</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/%CE%8C%CF%83%CE%BC%CE%B9%CE%BF" title="Όσμιο">Os</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/%CE%99%CF%81%CE%AF%CE%B4%CE%B9%CE%BF" title="Ιρίδιο">Ir</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/%CE%9B%CE%B5%CF%85%CE%BA%CF%8C%CF%87%CF%81%CF%85%CF%83%CE%BF%CF%82" title="Λευκόχρυσος">Pt</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/%CE%A7%CF%81%CF%85%CF%83%CF%8C%CF%82" title="Χρυσός">Au</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/%CE%A5%CE%B4%CF%81%CE%AC%CF%81%CE%B3%CF%85%CF%81%CE%BF%CF%82" title="Υδράργυρος">Hg</a> </td> <td width="3.125%" style="background-color:#cccccc"><a href="/wiki/%CE%98%CE%AC%CE%BB%CE%BB%CE%B9%CE%BF" title="Θάλλιο">Tl</a> </td> <td width="3.125%" style="background-color:#cccccc"><a href="/wiki/%CE%9C%CF%8C%CE%BB%CF%85%CE%B2%CE%B4%CE%BF%CF%82" title="Μόλυβδος">Pb</a> </td> <td width="3.125%" style="background-color:#cccccc"><a href="/wiki/%CE%92%CE%B9%CF%83%CE%BC%CE%BF%CF%8D%CE%B8%CE%B9%CE%BF" title="Βισμούθιο">Bi</a> </td> <td width="3.125%" style="background-color:#cccc99"><a href="/wiki/%CE%A0%CE%BF%CE%BB%CF%8E%CE%BD%CE%B9%CE%BF" title="Πολώνιο">Po</a> </td> <td width="3.125%" style="background-color:#ffff99"><a href="/wiki/%CE%86%CF%83%CF%84%CE%B1%CF%84%CE%BF" title="Άστατο">At</a> </td> <td width="3.125%" style="background-color:#c0ffff"><a href="/wiki/%CE%A1%CE%B1%CE%B4%CF%8C%CE%BD%CE%B9%CE%BF" title="Ραδόνιο">Rn</a> </td></tr> <tr> <td><a href="/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_7&action=edit&redlink=1" class="new" title="Στοιχείο Περιόδου 7 (δεν έχει γραφτεί ακόμα)">7</a> </td> <td style="background-color:#ff6666"><a href="/wiki/%CE%A6%CF%81%CE%AC%CE%B3%CE%BA%CE%B9%CE%BF" title="Φράγκιο">Fr</a> </td> <td style="background-color:#ffdead"><a href="/wiki/%CE%A1%CE%AC%CE%B4%CE%B9%CE%BF" title="Ράδιο">Ra</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%91%CE%BA%CF%84%CE%AF%CE%BD%CE%B9%CE%BF_(%CF%83%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF)" title="Ακτίνιο (στοιχείο)">Ac</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%98%CF%8C%CF%81%CE%B9%CE%BF" title="Θόριο">Th</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%A0%CF%81%CF%89%CF%84%CE%B1%CE%BA%CF%84%CE%AF%CE%BD%CE%B9%CE%BF" title="Πρωτακτίνιο">Pa</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%9F%CF%85%CF%81%CE%AC%CE%BD%CE%B9%CE%BF" title="Ουράνιο">U</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%A0%CE%BF%CF%83%CE%B5%CE%B9%CE%B4%CF%8E%CE%BD%CE%B9%CE%BF" title="Ποσειδώνιο">Np</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%A0%CE%BB%CE%BF%CF%85%CF%84%CF%8E%CE%BD%CE%B9%CE%BF" title="Πλουτώνιο">Pu</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%91%CE%BC%CE%B5%CF%81%CE%AF%CE%BA%CE%B9%CE%BF" title="Αμερίκιο">Am</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%9A%CE%B9%CE%BF%CF%8D%CF%81%CE%B9%CE%BF" title="Κιούριο">Cm</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%9C%CF%80%CE%B5%CF%81%CE%BA%CE%AD%CE%BB%CE%B9%CE%BF" title="Μπερκέλιο">Bk</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%9A%CE%B1%CE%BB%CE%B9%CF%86%CF%8C%CF%81%CE%BD%CE%B9%CE%BF" title="Καλιφόρνιο">Cf</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%91%CF%8A%CE%BD%CF%83%CF%84%CE%B1%CE%90%CE%BD%CE%B9%CE%BF" title="Αϊνσταΐνιο">Es</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%A6%CE%AD%CF%81%CE%BC%CE%B9%CE%BF" title="Φέρμιο">Fm</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%9C%CE%B5%CE%BD%CF%84%CE%B5%CE%BB%CE%AD%CE%B2%CE%B9%CE%BF" title="Μεντελέβιο">Md</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%9D%CE%BF%CE%BC%CF%80%CE%AD%CE%BB%CE%B9%CE%BF" title="Νομπέλιο">No</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/%CE%9B%CF%89%CF%81%CE%AD%CE%BD%CF%83%CE%B9%CE%BF" title="Λωρένσιο">Lr</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A1%CE%B1%CE%B4%CE%B5%CF%81%CF%86%CF%8C%CF%81%CE%BD%CF%84%CE%B9%CE%BF" title="Ραδερφόρντιο">Rf</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9D%CF%84%CE%BF%CF%8D%CE%BC%CF%80%CE%BD%CE%B9%CE%BF" title="Ντούμπνιο">Db</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A3%CE%B9%CE%BC%CF%80%CF%8C%CF%81%CE%B3%CE%BA%CE%B9%CE%BF" title="Σιμπόργκιο">Sg</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9C%CF%80%CF%8C%CF%81%CE%B9%CE%BF" title="Μπόριο">Bh</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A7%CE%AC%CF%83%CE%B9%CE%BF" title="Χάσιο">Hs</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9C%CE%B1%CF%8A%CF%84%CE%BD%CE%AD%CF%81%CE%B9%CE%BF" title="Μαϊτνέριο">Mt</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9D%CF%84%CE%B1%CF%81%CE%BC%CF%83%CF%84%CE%AC%CE%BD%CF%84%CE%B9%CE%BF" title="Νταρμστάντιο">Ds</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%A1%CE%B5%CE%BD%CF%84%CE%B3%CE%BA%CE%AD%CE%BD%CE%B9%CE%BF" title="Ρεντγκένιο">Rg</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/%CE%9A%CE%BF%CF%80%CE%B5%CF%81%CE%BD%CE%AF%CE%BA%CE%B9%CE%BF" title="Κοπερνίκιο">Cn</a> </td> <td style="background-color:#cccccc"><a href="/wiki/%CE%9D%CE%B9%CF%87%CF%8C%CE%BD%CE%B9%CE%BF" title="Νιχόνιο">Nh</a> </td> <td style="background-color:#cccccc"><a href="/wiki/%CE%A6%CE%BB%CE%B5%CF%81%CF%8C%CE%B2%CE%B9%CE%BF" title="Φλερόβιο">Fl</a> </td> <td style="background-color:#cccccc"><a href="/wiki/%CE%9C%CE%BF%CF%83%CE%BA%CF%8C%CE%B2%CE%B9%CE%BF" title="Μοσκόβιο">Mc</a> </td> <td style="background-color:#cccccc"><a href="/wiki/%CE%9B%CE%B9%CE%B2%CE%B5%CF%81%CE%BC%CF%8C%CF%81%CE%B9%CE%BF" title="Λιβερμόριο">Lv</a> </td> <td style="background-color:#ffff99"><a href="/wiki/%CE%A4%CE%B5%CE%BD%CE%AD%CF%83%CE%B9%CE%BF" title="Τενέσιο">Ts</a> </td> <td style="background-color:#c0ffff"><a href="/wiki/%CE%9F%CE%B3%CE%BA%CE%B1%CE%BD%CE%AD%CF%83%CF%83%CE%B9%CE%BF" title="Ογκανέσσιο">Og</a> </td></tr> <tr> <td> </td> <td colspan="32"> <table border="1" align="center" style="border:1px solid #ffffff; border-collapse:collapse; width:100%" rules="all" cellpadding="1"> <tbody><tr> <td style="background-color:#ff6666" width="10%"><a href="/wiki/%CE%91%CE%BB%CE%BA%CE%B1%CE%BB%CE%B9%CE%BC%CE%AD%CF%84%CE%B1%CE%BB%CE%BB%CE%B1" class="mw-redirect" title="Αλκαλιμέταλλα">Αλκαλιμέταλλα</a> </td> <td style="background-color:#ffdead" width="10%"><a href="/wiki/%CE%91%CE%BB%CE%BA%CE%B1%CE%BB%CE%B9%CE%BA%CE%AD%CF%82_%CE%B3%CE%B1%CE%AF%CE%B5%CF%82" title="Αλκαλικές γαίες">Αλκαλικές γαίες</a> </td> <td style="background-color:#ffbfff" width="10%"><a href="/wiki/%CE%A3%CF%80%CE%AC%CE%BD%CE%B9%CE%B5%CF%82_%CE%B3%CE%B1%CE%AF%CE%B5%CF%82" title="Σπάνιες γαίες">Λανθανίδες</a> </td> <td style="background-color:#ff99cc" width="10%"><a href="/wiki/%CE%91%CE%BA%CF%84%CE%B9%CE%BD%CE%AF%CE%B4%CE%B5%CF%82" title="Ακτινίδες">Ακτινίδες</a> </td> <td style="background-color:#ffc0c0" width="10%"><a href="/wiki/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%B1_%CE%BC%CE%B5%CF%84%CE%AC%CF%80%CF%84%CF%89%CF%83%CE%B7%CF%82" title="Στοιχεία μετάπτωσης">Στοιχεία μετάπτωσης</a> </td> <td style="background-color:#cccccc" width="10%">Άλλα <a href="/wiki/%CE%9C%CE%AD%CF%84%CE%B1%CE%BB%CE%BB%CE%B1" title="Μέταλλα">μέταλλα</a> </td> <td style="background-color:#cccc99" width="10%"><a href="/wiki/%CE%9C%CE%B5%CF%84%CE%B1%CE%BB%CE%BB%CE%BF%CE%B5%CE%B9%CE%B4%CE%AE" title="Μεταλλοειδή">Μεταλλοειδή</a> </td> <td style="background-color:#00ffa0" width="10%">Άλλα <a href="/wiki/%CE%91%CE%BC%CE%AD%CF%84%CE%B1%CE%BB%CE%BB%CE%B1" title="Αμέταλλα">αμέταλλα</a> </td> <td style="background-color:#ffff99" width="10%"><a href="/wiki/%CE%91%CE%BB%CE%BF%CE%B3%CF%8C%CE%BD%CE%B1" title="Αλογόνα">Αλογόνα</a> </td> <td style="background-color:#c0ffff" width="10%"><a href="/wiki/%CE%95%CF%85%CE%B3%CE%B5%CE%BD%CE%AE_%CE%B1%CE%AD%CF%81%CE%B9%CE%B1" title="Ευγενή αέρια">Ευγενή Αέρια</a> </td></tr></tbody></table> </td></tr></tbody></table>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Ανακτήθηκε από "<a dir="ltr" href="https://el.wikipedia.org/w/index.php?title=Στοιχείο_Περιόδου_4&oldid=9764986">https://el.wikipedia.org/w/index.php?title=Στοιχείο_Περιόδου_4&oldid=9764986</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CF%8C:%CE%9A%CE%B1%CF%84%CE%B7%CE%B3%CE%BF%CF%81%CE%AF%CE%B5%CF%82" title="Ειδικό:Κατηγορίες">Κατηγορία</a>: <ul><li><a href="/wiki/%CE%9A%CE%B1%CF%84%CE%B7%CE%B3%CE%BF%CF%81%CE%AF%CE%B1:%CE%9F%CE%BC%CE%AC%CE%B4%CE%B5%CF%82_%CF%87%CE%B7%CE%BC%CE%B9%CE%BA%CF%8E%CE%BD_%CF%83%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CF%89%CE%BD" title="Κατηγορία:Ομάδες χημικών στοιχείων">Ομάδες χημικών στοιχείων</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"> Τελευταία τροποποίηση 07:24, 12 Νοεμβρίου 2022.</li> <li id="footer-info-copyright">Όλα τα κείμενα είναι διαθέσιμα υπό την <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/deed.el">Creative Commons Attribution-ShareAlike License</a>· μπορεί να ισχύουν και πρόσθετοι όροι. Χρησιμοποιώντας αυτό τον ιστότοπο, συμφωνείτε στους <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use/el">Όρους Χρήσης</a> και την <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Πολιτική Ιδιωτικότητας</a>. Το Wikipedia® είναι καταχωρημένο σήμα του <a rel="nofollow" class="external text" href="https://www.wikimediafoundation.org/">Wikimedia Foundation, Inc.</a>, ενός μη κερδοσκοπικού οργανισμού.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Πολιτική προσωπικών δεδομένων</a></li> <li id="footer-places-about"><a href="/wiki/%CE%92%CE%B9%CE%BA%CE%B9%CF%80%CE%B1%CE%AF%CE%B4%CE%B5%CE%B9%CE%B1:%CE%A3%CF%87%CE%B5%CF%84%CE%B9%CE%BA%CE%AC">Για τη Βικιπαίδεια</a></li> <li id="footer-places-disclaimers"><a href="/wiki/%CE%92%CE%B9%CE%BA%CE%B9%CF%80%CE%B1%CE%AF%CE%B4%CE%B5%CE%B9%CE%B1:%CE%91%CF%80%CE%BF%CF%80%CE%BF%CE%AF%CE%B7%CF%83%CE%B7_%CE%B5%CF%85%CE%B8%CF%85%CE%BD%CF%8E%CE%BD">Αποποίηση ευθυνών</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Κώδικας συμπεριφοράς</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Προγραμματιστές</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/el.wikipedia.org">Στατιστικά</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Δήλωση cookie</a></li> <li id="footer-places-mobileview"><a href="//el.m.wikipedia.org/w/index.php?title=%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Προβολή κινητού</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-5f58cd8b6-n67hw","wgBackendResponseTime":128,"wgPageParseReport":{"limitreport":{"cputime":"0.034","walltime":"0.048","ppvisitednodes":{"value":63,"limit":1000000},"postexpandincludesize":{"value":12244,"limit":2097152},"templateargumentsize":{"value":148,"limit":2097152},"expansiondepth":{"value":6,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":0,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 5.385 1 -total","100.00% 5.385 1 Πρότυπο:Περιοδικός_πίνακας"," 57.97% 3.122 1 Πρότυπο:Tnavbar"]},"cachereport":{"origin":"mw-api-int.codfw.main-74d547898-cs98n","timestamp":"20241119181544","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"\u03a3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03bf \u03a0\u03b5\u03c1\u03b9\u03cc\u03b4\u03bf\u03c5 4","url":"https:\/\/el.wikipedia.org\/wiki\/%CE%A3%CF%84%CE%BF%CE%B9%CF%87%CE%B5%CE%AF%CE%BF_%CE%A0%CE%B5%CF%81%CE%B9%CF%8C%CE%B4%CE%BF%CF%85_4","sameAs":"http:\/\/www.wikidata.org\/entity\/Q239825","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q239825","author":{"@type":"Organization","name":"\u03a3\u03c5\u03bd\u03b5\u03b9\u03c3\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b5\u03c2 \u03c3\u03c4\u03b1 \u03b5\u03b3\u03c7\u03b5\u03b9\u03c1\u03ae\u03bc\u03b1\u03c4\u03b1 Wikimedia"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2020-03-25T00:26:10Z","dateModified":"2022-11-12T07:24:38Z"}</script> </body> </html>