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<div id="p-Comunitat" class="vector-menu mw-portlet mw-portlet-Comunitat" > <div class="vector-menu-heading"> Comunitat </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-portal" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Portal" title="Sobre el projecte, què podeu fer, on trobareu les coses"><span>Portal viquipedista</span></a></li><li id="n-Agenda-d'actes" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Trobades"><span>Agenda d'actes</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Especial:Canvis_recents" title="Una llista dels canvis recents al wiki [r]" accesskey="r"><span>Canvis recents</span></a></li><li id="n-La-taverna" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:La_taverna"><span>La taverna</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Contacte"><span>Contacte</span></a></li><li id="n-Xat" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Canals_IRC"><span>Xat</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Ajuda" title="El lloc per a saber més coses"><span>Ajuda</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Portada" 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="Viquipèdia" src="/static/images/mobile/copyright/wikipedia-wordmark-ca.svg" style="width: 7.5em; height: 1.4375em;"> <img class="mw-logo-tagline" alt="l'Enciclopèdia Lliure" src="/static/images/mobile/copyright/wikipedia-tagline-ca.svg" width="120" height="14" style="width: 7.5em; height: 0.875em;"> </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 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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="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=ca.wikipedia.org&uselang=ca" class=""><span>Donatius</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=Especial:Crea_compte&returnto=Crom" title="Us animem a crear un compte i iniciar una sessió, encara que no és obligatori" class=""><span>Crea un compte</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=Especial:Registre_i_entrada&returnto=Crom" title="Us animem a registrar-vos, però no és obligatori [o]" accesskey="o" class=""><span>Inicia la sessió</span></a> </li> </ul> </div> </div> </div> <div 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mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pàgines per a editors no registrats <a href="/wiki/Ajuda:Introducci%C3%B3" aria-label="Vegeu més informació sobre l'edició"><span>més informació</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/Especial:Contribucions_pr%C3%B2pies" title="Una llista de les modificacions fetes des d'aquesta adreça IP [y]" accesskey="y"><span>Contribucions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Especial:Discussi%C3%B3_personal" title="Discussió sobre les edicions per aquesta adreça ip. [n]" accesskey="n"><span>Discussió per aquest 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="Lloc"> <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="Contingut" 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">Contingut</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">amaga</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">Inici</div> </a> </li> <li id="toc-Història" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Història"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Història</span> </div> </a> <ul id="toc-Història-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Estat_natural_i_obtenció" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Estat_natural_i_obtenció"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Estat natural i obtenció</span> </div> </a> <ul id="toc-Estat_natural_i_obtenció-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Propietats" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Propietats"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Propietats</span> </div> </a> <button aria-controls="toc-Propietats-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>Commuta la subsecció Propietats</span> </button> <ul id="toc-Propietats-sublist" class="vector-toc-list"> <li id="toc-Propietats_físiques" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Propietats_físiques"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Propietats físiques</span> </div> </a> <ul id="toc-Propietats_físiques-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Propietats_químiques" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Propietats_químiques"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Propietats químiques</span> </div> </a> <ul id="toc-Propietats_químiques-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Isòtops" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Isòtops"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Isòtops</span> </div> </a> <ul id="toc-Isòtops-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Aplicacions" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Aplicacions"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Aplicacions</span> </div> </a> <button aria-controls="toc-Aplicacions-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>Commuta la subsecció Aplicacions</span> </button> <ul id="toc-Aplicacions-sublist" class="vector-toc-list"> <li id="toc-Indústria_metal·lúrgica" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Indústria_metal·lúrgica"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>Indústria metal·lúrgica</span> </div> </a> <ul id="toc-Indústria_metal·lúrgica-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Indústria_del_vidre_i_la_ceràmica" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Indústria_del_vidre_i_la_ceràmica"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.2</span> <span>Indústria del vidre i la ceràmica</span> </div> </a> <ul id="toc-Indústria_del_vidre_i_la_ceràmica-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Medicina" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Medicina"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.3</span> <span>Medicina</span> </div> </a> <ul id="toc-Medicina-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altres_camps" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Altres_camps"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.4</span> <span>Altres camps</span> </div> </a> <ul id="toc-Altres_camps-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Paper_biològic" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Paper_biològic"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Paper biològic</span> </div> </a> <ul id="toc-Paper_biològic-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Toxicitat" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Toxicitat"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Toxicitat</span> </div> </a> <ul id="toc-Toxicitat-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referències" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referències"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Referències</span> </div> </a> <ul id="toc-Referències-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Vegeu_també" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Vegeu_també"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>Vegeu també</span> </div> </a> <ul id="toc-Vegeu_també-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Enllaços_externs" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Enllaços_externs"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>Enllaços externs</span> </div> </a> <ul id="toc-Enllaços_externs-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="Contingut" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Taula de continguts" > <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="Commuta la taula de continguts." > <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">Commuta la taula de continguts.</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">Crom</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="Vés a un article en una altra llengua. Disponible en 157 llengües" > <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-157" 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">157 llengües</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/Chroom" title="Chroom - afrikaans" lang="af" hreflang="af" data-title="Chroom" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-am mw-list-item"><a href="https://am.wikipedia.org/wiki/%E1%8A%AD%E1%88%AE%E1%88%9A%E1%8B%A8%E1%88%9D" title="ክሮሚየም - amhàric" lang="am" hreflang="am" data-title="ክሮሚየም" data-language-autonym="አማርኛ" data-language-local-name="amhàric" 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/Cromo" title="Cromo - aragonès" lang="an" hreflang="an" data-title="Cromo" data-language-autonym="Aragonés" data-language-local-name="aragonès" 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%95%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%AE%E0%A4%BF%E0%A4%AF%E0%A4%AE" title="क्रोमियम - angika" lang="anp" hreflang="anp" data-title="क्रोमियम" 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="article de qualitat"><a href="https://ar.wikipedia.org/wiki/%D9%83%D8%B1%D9%88%D9%85" title="كروم - àrab" lang="ar" hreflang="ar" data-title="كروم" data-language-autonym="العربية" data-language-local-name="àrab" 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/%D9%83%D8%B1%D9%88%D9%85" title="كروم - Moroccan Arabic" lang="ary" hreflang="ary" data-title="كروم" data-language-autonym="الدارجة" data-language-local-name="Moroccan Arabic" 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/%D9%83%D8%B1%D9%88%D9%85" title="كروم - àrab egipci" lang="arz" hreflang="arz" data-title="كروم" data-language-autonym="مصرى" data-language-local-name="àrab egipci" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Cromu_(elementu)" title="Cromu (elementu) - asturià" lang="ast" hreflang="ast" data-title="Cromu (elementu)" data-language-autonym="Asturianu" data-language-local-name="asturià" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-avk mw-list-item"><a href="https://avk.wikipedia.org/wiki/Vogel" title="Vogel - Kotava" lang="avk" hreflang="avk" data-title="Vogel" data-language-autonym="Kotava" data-language-local-name="Kotava" class="interlanguage-link-target"><span>Kotava</span></a></li><li class="interlanguage-link interwiki-awa mw-list-item"><a href="https://awa.wikipedia.org/wiki/%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%AE%E0%A4%BF%E0%A4%AF%E0%A4%AE" title="क्रोमियम - awadhi" lang="awa" hreflang="awa" data-title="क्रोमियम" 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/Xrom" title="Xrom - azerbaidjanès" lang="az" hreflang="az" data-title="Xrom" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaidjanès" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-ban mw-list-item"><a href="https://ban.wikipedia.org/wiki/Kromium" title="Kromium - balinès" lang="ban" hreflang="ban" data-title="Kromium" data-language-autonym="Basa Bali" data-language-local-name="balinès" class="interlanguage-link-target"><span>Basa Bali</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Kromyo" title="Kromyo - Central Bikol" lang="bcl" hreflang="bcl" data-title="Kromyo" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - belarús" lang="be" hreflang="be" data-title="Хром" data-language-autonym="Беларуская" data-language-local-name="belarús" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Хром" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - búlgar" lang="bg" hreflang="bg" data-title="Хром" data-language-autonym="Български" data-language-local-name="búlgar" 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%95%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%AE%E0%A4%BF%E0%A4%AF%E0%A4%AE" title="क्रोमियम - Bhojpuri" lang="bh" hreflang="bh" data-title="क्रोमियम" 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%81%E1%80%9B%E1%80%AD%E1%80%AF%E1%80%99%E1%80%AE%E1%80%9A%E1%80%99%E1%80%BA" title="ခရိုမီယမ် - Pa'O" lang="blk" hreflang="blk" data-title="ခရိုမီယမ်" 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%95%E0%A7%8D%E0%A6%B0%E0%A7%8B%E0%A6%AE%E0%A6%BF%E0%A6%AF%E0%A6%BC%E0%A6%BE%E0%A6%AE" title="ক্রোমিয়াম - bengalí" lang="bn" hreflang="bn" data-title="ক্রোমিয়াম" data-language-autonym="বাংলা" data-language-local-name="bengalí" 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%80%E0%BD%BC%E0%BC%8B%E0%BD%A3%E0%BE%95%E0%BD%82%E0%BD%A6%E0%BC%8D" title="ཀོ་ལྕགས། - tibetà" lang="bo" hreflang="bo" data-title="ཀོ་ལྕགས།" data-language-autonym="བོད་ཡིག" data-language-local-name="tibetà" 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/Krom" title="Krom - bretó" lang="br" hreflang="br" data-title="Krom" data-language-autonym="Brezhoneg" data-language-local-name="bretó" 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/Hrom" title="Hrom - bosnià" lang="bs" hreflang="bs" data-title="Hrom" data-language-autonym="Bosanski" data-language-local-name="bosnià" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/G%C3%A1uk_(g%C4%ADng-s%E1%B9%B3%CC%86k)" title="Gáuk (gĭng-sṳ̆k) - Mindong" lang="cdo" hreflang="cdo" data-title="Gáuk (gĭng-sṳ̆k)" 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-ceb mw-list-item"><a href="https://ceb.wikipedia.org/wiki/Kromyo" title="Kromyo - cebuà" lang="ceb" hreflang="ceb" data-title="Kromyo" data-language-autonym="Cebuano" data-language-local-name="cebuà" class="interlanguage-link-target"><span>Cebuano</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DA%A9%D8%B1%DB%86%D9%85" title="کرۆم - kurd central" lang="ckb" hreflang="ckb" data-title="کرۆم" data-language-autonym="کوردی" data-language-local-name="kurd central" 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/Cromu" title="Cromu - cors" lang="co" hreflang="co" data-title="Cromu" data-language-autonym="Corsu" data-language-local-name="cors" 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/Chrom" title="Chrom - txec" lang="cs" hreflang="cs" data-title="Chrom" data-language-autonym="Čeština" data-language-local-name="txec" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - txuvaix" lang="cv" hreflang="cv" data-title="Хром" data-language-autonym="Чӑвашла" data-language-local-name="txuvaix" 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/Cromiwm" title="Cromiwm - gal·lès" lang="cy" hreflang="cy" data-title="Cromiwm" data-language-autonym="Cymraeg" data-language-local-name="gal·lès" 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/Krom" title="Krom - danès" lang="da" hreflang="da" data-title="Krom" data-language-autonym="Dansk" data-language-local-name="danès" 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/Chrom" title="Chrom - alemany" lang="de" hreflang="de" data-title="Chrom" data-language-autonym="Deutsch" data-language-local-name="alemany" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-dv mw-list-item"><a href="https://dv.wikipedia.org/wiki/%DE%86%DE%B0%DE%83%DE%AF%DE%89%DE%A8%DE%87%DE%A6%DE%89%DE%B0" title="ކްރޯމިއަމް - divehi" lang="dv" hreflang="dv" data-title="ކްރޯމިއަމް" data-language-autonym="ދިވެހިބަސް" data-language-local-name="divehi" class="interlanguage-link-target"><span>ދިވެހިބަސް</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A7%CF%81%CF%8E%CE%BC%CE%B9%CE%BF" title="Χρώμιο - grec" lang="el" hreflang="el" data-title="Χρώμιο" data-language-autonym="Ελληνικά" data-language-local-name="grec" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en badge-Q17437798 badge-goodarticle mw-list-item" title="article bo"><a href="https://en.wikipedia.org/wiki/Chromium" title="Chromium - anglès" lang="en" hreflang="en" data-title="Chromium" data-language-autonym="English" data-language-local-name="anglès" 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/Kromio" title="Kromio - esperanto" lang="eo" hreflang="eo" data-title="Kromio" data-language-autonym="Esperanto" data-language-local-name="esperanto" 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/Cromo" title="Cromo - espanyol" lang="es" hreflang="es" data-title="Cromo" data-language-autonym="Español" data-language-local-name="espanyol" 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/Kroom" title="Kroom - estonià" lang="et" hreflang="et" data-title="Kroom" data-language-autonym="Eesti" data-language-local-name="estonià" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu badge-Q17437796 badge-featuredarticle mw-list-item" title="article de qualitat"><a href="https://eu.wikipedia.org/wiki/Kromo" title="Kromo - basc" lang="eu" hreflang="eu" data-title="Kromo" data-language-autonym="Euskara" data-language-local-name="basc" 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/%DA%A9%D8%B1%D9%88%D9%85" title="کروم - persa" lang="fa" hreflang="fa" data-title="کروم" data-language-autonym="فارسی" data-language-local-name="persa" 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/Kromi" title="Kromi - finès" lang="fi" hreflang="fi" data-title="Kromi" data-language-autonym="Suomi" data-language-local-name="finès" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fo mw-list-item"><a href="https://fo.wikipedia.org/wiki/Krom" title="Krom - feroès" lang="fo" hreflang="fo" data-title="Krom" data-language-autonym="Føroyskt" data-language-local-name="feroès" 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/Chrome" title="Chrome - francès" lang="fr" hreflang="fr" data-title="Chrome" data-language-autonym="Français" data-language-local-name="francès" 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/Kroom_(element)" title="Kroom (element) - frisó septentrional" lang="frr" hreflang="frr" data-title="Kroom (element)" data-language-autonym="Nordfriisk" data-language-local-name="frisó septentrional" 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/Crom" title="Crom - friülà" lang="fur" hreflang="fur" data-title="Crom" data-language-autonym="Furlan" data-language-local-name="friülà" class="interlanguage-link-target"><span>Furlan</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Cr%C3%B3imiam" title="Cróimiam - irlandès" lang="ga" hreflang="ga" data-title="Cróimiam" data-language-autonym="Gaeilge" data-language-local-name="irlandès" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Cr%C3%B2mium" title="Cròmium - gaèlic escocès" lang="gd" hreflang="gd" data-title="Cròmium" data-language-autonym="Gàidhlig" data-language-local-name="gaèlic escocès" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Cromo" title="Cromo - gallec" lang="gl" hreflang="gl" data-title="Cromo" data-language-autonym="Galego" data-language-local-name="gallec" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%B5%E0%AA%B0%E0%AB%8D%E0%AA%A3%E0%AA%BE%E0%AA%A4%E0%AB%81" title="વર્ણાતુ - gujarati" lang="gu" hreflang="gu" data-title="વર્ણાતુ" 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/Cromium" title="Cromium - manx" lang="gv" hreflang="gv" data-title="Cromium" data-language-autonym="Gaelg" data-language-local-name="manx" 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/Chromium" title="Chromium - xinès hakka" lang="hak" hreflang="hak" data-title="Chromium" data-language-autonym="客家語 / Hak-kâ-ngî" data-language-local-name="xinès hakka" class="interlanguage-link-target"><span>客家語 / Hak-kâ-ngî</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9B%D7%A8%D7%95%D7%9D" title="כרום - hebreu" lang="he" hreflang="he" data-title="כרום" data-language-autonym="עברית" data-language-local-name="hebreu" 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%95%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%AE%E0%A4%BF%E0%A4%AF%E0%A4%AE" title="क्रोमियम - hindi" lang="hi" hreflang="hi" data-title="क्रोमियम" 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/Chromium" title="Chromium - hindi de Fiji" lang="hif" hreflang="hif" data-title="Chromium" data-language-autonym="Fiji Hindi" data-language-local-name="hindi de Fiji" 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/Krom" title="Krom - croat" lang="hr" hreflang="hr" data-title="Krom" data-language-autonym="Hrvatski" data-language-local-name="croat" 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/Chrom" title="Chrom - alt sòrab" lang="hsb" hreflang="hsb" data-title="Chrom" data-language-autonym="Hornjoserbsce" data-language-local-name="alt sòrab" 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/Kw%C3%B2m" title="Kwòm - crioll d’Haití" lang="ht" hreflang="ht" data-title="Kwòm" data-language-autonym="Kreyòl ayisyen" data-language-local-name="crioll d’Haití" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Kr%C3%B3m" title="Króm - hongarès" lang="hu" hreflang="hu" data-title="Króm" data-language-autonym="Magyar" data-language-local-name="hongarès" 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/%D5%94%D6%80%D5%B8%D5%B4" title="Քրոմ - armeni" lang="hy" hreflang="hy" data-title="Քրոմ" data-language-autonym="Հայերեն" data-language-local-name="armeni" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Chromo" title="Chromo - interlingua" lang="ia" hreflang="ia" data-title="Chromo" 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/Kromium" title="Kromium - indonesi" lang="id" hreflang="id" data-title="Kromium" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesi" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Kromo" title="Kromo - ido" lang="io" hreflang="io" data-title="Kromo" 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/Kr%C3%B3m" title="Króm - islandès" lang="is" hreflang="is" data-title="Króm" data-language-autonym="Íslenska" data-language-local-name="islandès" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Cromo" title="Cromo - italià" lang="it" hreflang="it" data-title="Cromo" data-language-autonym="Italiano" data-language-local-name="italià" 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/%E3%82%AF%E3%83%AD%E3%83%A0" title="クロム - japonès" lang="ja" hreflang="ja" data-title="クロム" data-language-autonym="日本語" data-language-local-name="japonès" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jbo mw-list-item"><a href="https://jbo.wikipedia.org/wiki/rogjinme" title="rogjinme - lojban" lang="jbo" hreflang="jbo" data-title="rogjinme" 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/Kromiyum" title="Kromiyum - javanès" lang="jv" hreflang="jv" data-title="Kromiyum" data-language-autonym="Jawa" data-language-local-name="javanès" 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%A5%E1%83%A0%E1%83%9D%E1%83%9B%E1%83%98" title="ქრომი - georgià" lang="ka" hreflang="ka" data-title="ქრომი" data-language-autonym="ქართული" data-language-local-name="georgià" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kbp mw-list-item"><a href="https://kbp.wikipedia.org/wiki/Kurom" title="Kurom - Kabiye" lang="kbp" hreflang="kbp" data-title="Kurom" data-language-autonym="Kabɩyɛ" data-language-local-name="Kabiye" class="interlanguage-link-target"><span>Kabɩyɛ</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A5%D1%80%D0%BE%D0%BC" title="Хром - kazakh" lang="kk" hreflang="kk" data-title="Хром" data-language-autonym="Қазақша" data-language-local-name="kazakh" 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%95%E0%B3%8D%E0%B2%B0%E0%B3%8B%E0%B2%AE%E0%B2%BF%E0%B2%AF%E0%B2%AE%E0%B3%8D" title="ಕ್ರೋಮಿಯಮ್ - kannada" lang="kn" hreflang="kn" data-title="ಕ್ರೋಮಿಯಮ್" 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/%ED%81%AC%EB%A1%9C%EB%AE%B4" title="크로뮴 - coreà" lang="ko" hreflang="ko" data-title="크로뮴" data-language-autonym="한국어" data-language-local-name="coreà" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Krom" title="Krom - kurd" lang="ku" hreflang="ku" data-title="Krom" data-language-autonym="Kurdî" data-language-local-name="kurd" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - komi" lang="kv" hreflang="kv" data-title="Хром" 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/Kromiom" title="Kromiom - còrnic" lang="kw" hreflang="kw" data-title="Kromiom" data-language-autonym="Kernowek" data-language-local-name="còrnic" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - kirguís" lang="ky" hreflang="ky" data-title="Хром" data-language-autonym="Кыргызча" data-language-local-name="kirguís" 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/Chromium" title="Chromium - llatí" lang="la" hreflang="la" data-title="Chromium" data-language-autonym="Latina" data-language-local-name="llatí" 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/Chrom" title="Chrom - luxemburguès" lang="lb" hreflang="lb" data-title="Chrom" data-language-autonym="Lëtzebuergesch" data-language-local-name="luxemburguès" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lg mw-list-item"><a href="https://lg.wikipedia.org/wiki/Kolomiyaamu(Chromium)" title="Kolomiyaamu(Chromium) - ganda" lang="lg" hreflang="lg" data-title="Kolomiyaamu(Chromium)" data-language-autonym="Luganda" data-language-local-name="ganda" class="interlanguage-link-target"><span>Luganda</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Chroeam" title="Chroeam - limburguès" lang="li" hreflang="li" data-title="Chroeam" data-language-autonym="Limburgs" data-language-local-name="limburguès" 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/Crommo" title="Crommo - lígur" lang="lij" hreflang="lij" data-title="Crommo" data-language-autonym="Ligure" data-language-local-name="lígur" 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/Crom" title="Crom - ladí" lang="lld" hreflang="lld" data-title="Crom" data-language-autonym="Ladin" data-language-local-name="ladí" 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/Cr%C3%B3m" title="Cróm - llombard" lang="lmo" hreflang="lmo" data-title="Cróm" data-language-autonym="Lombard" data-language-local-name="llombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lo mw-list-item"><a href="https://lo.wikipedia.org/wiki/%E0%BB%82%E0%BA%84%E0%BA%A3%E0%BA%A1%E0%BA%BD%E0%BA%A1" title="ໂຄຣມຽມ - laosià" lang="lo" hreflang="lo" data-title="ໂຄຣມຽມ" data-language-autonym="ລາວ" data-language-local-name="laosià" 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/Chromas" title="Chromas - lituà" lang="lt" hreflang="lt" data-title="Chromas" data-language-autonym="Lietuvių" data-language-local-name="lituà" 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/Hroms" title="Hroms - letó" lang="lv" hreflang="lv" data-title="Hroms" data-language-autonym="Latviešu" data-language-local-name="letó" 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%A5%D1%80%D0%BE%D0%BC%D0%B0" title="Хрома - mordovià moksa" lang="mdf" hreflang="mdf" data-title="Хрома" data-language-autonym="Мокшень" data-language-local-name="mordovià moksa" 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/Kr%C3%B4ma" title="Krôma - malgaix" lang="mg" hreflang="mg" data-title="Krôma" data-language-autonym="Malagasy" data-language-local-name="malgaix" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-mi mw-list-item"><a href="https://mi.wikipedia.org/wiki/Konukita" title="Konukita - maori" lang="mi" hreflang="mi" data-title="Konukita" 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/Kromium" title="Kromium - minangkabau" lang="min" hreflang="min" data-title="Kromium" data-language-autonym="Minangkabau" data-language-local-name="minangkabau" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - macedoni" lang="mk" hreflang="mk" data-title="Хром" data-language-autonym="Македонски" data-language-local-name="macedoni" 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%95%E0%B5%8D%E0%B4%B0%E0%B5%8B%E0%B4%AE%E0%B4%BF%E0%B4%AF%E0%B4%82" title="ക്രോമിയം - malaiàlam" lang="ml" hreflang="ml" data-title="ക്രോമിയം" data-language-autonym="മലയാളം" data-language-local-name="malaiàlam" 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%D1%80%D0%BE%D0%BC" title="Хром - mongol" lang="mn" hreflang="mn" data-title="Хром" data-language-autonym="Монгол" data-language-local-name="mongol" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%B5%E0%A4%B0%E0%A5%8D%E0%A4%A3%E0%A4%BE%E0%A4%A4%E0%A5%81" title="वर्णातु - marathi" lang="mr" hreflang="mr" data-title="वर्णातु" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - mari occidental" lang="mrj" hreflang="mrj" data-title="Хром" data-language-autonym="Кырык мары" data-language-local-name="mari occidental" 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/Kromium" title="Kromium - malai" lang="ms" hreflang="ms" data-title="Kromium" data-language-autonym="Bahasa Melayu" data-language-local-name="malai" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%81%E1%80%9B%E1%80%AD%E1%80%AF%E1%80%99%E1%80%AE%E1%80%9A%E1%80%99%E1%80%BA" title="ခရိုမီယမ် - birmà" lang="my" hreflang="my" data-title="ခရိုမီယမ်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmà" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - mordovià erza" lang="myv" hreflang="myv" data-title="Хром" data-language-autonym="Эрзянь" data-language-local-name="mordovià erza" class="interlanguage-link-target"><span>Эрзянь</span></a></li><li class="interlanguage-link interwiki-nah mw-list-item"><a href="https://nah.wikipedia.org/wiki/Tlap%C4%81ltepoztli" title="Tlapāltepoztli - Nahuatl" lang="nah" hreflang="nah" data-title="Tlapāltepoztli" 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/Chrom" title="Chrom - baix alemany" lang="nds" hreflang="nds" data-title="Chrom" data-language-autonym="Plattdüütsch" data-language-local-name="baix alemany" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-new mw-list-item"><a href="https://new.wikipedia.org/wiki/%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%AE%E0%A4%BF%E0%A4%AF%E0%A4%AE" title="क्रोमियम - newari" lang="new" hreflang="new" data-title="क्रोमियम" 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/Chroom_(element)" title="Chroom (element) - neerlandès" lang="nl" hreflang="nl" data-title="Chroom (element)" data-language-autonym="Nederlands" data-language-local-name="neerlandès" 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/Krom" title="Krom - noruec nynorsk" lang="nn" hreflang="nn" data-title="Krom" data-language-autonym="Norsk nynorsk" data-language-local-name="noruec 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/Krom" title="Krom - noruec bokmål" lang="nb" hreflang="nb" data-title="Krom" data-language-autonym="Norsk bokmål" data-language-local-name="noruec bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nov mw-list-item"><a href="https://nov.wikipedia.org/wiki/Kromie" title="Kromie - novial" lang="nov" hreflang="nov" data-title="Kromie" data-language-autonym="Novial" data-language-local-name="novial" class="interlanguage-link-target"><span>Novial</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Cr%C3%B2me" title="Cròme - occità" lang="oc" hreflang="oc" data-title="Cròme" data-language-autonym="Occitan" data-language-local-name="occità" 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/Hrom" title="Hrom - Livvi-Karelian" lang="olo" hreflang="olo" data-title="Hrom" data-language-autonym="Livvinkarjala" data-language-local-name="Livvi-Karelian" class="interlanguage-link-target"><span>Livvinkarjala</span></a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%95%E0%AD%8D%E0%AC%B0%E0%AD%8B%E0%AC%AE%E0%AC%BF%E0%AD%9F%E0%AC%AE" title="କ୍ରୋମିୟମ - oriya" lang="or" hreflang="or" data-title="କ୍ରୋମିୟମ" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="oriya" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - osseta" lang="os" hreflang="os" data-title="Хром" data-language-autonym="Ирон" data-language-local-name="osseta" 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%95%E0%A8%B0%E0%A9%8B%E0%A8%AE%E0%A9%80%E0%A8%85%E0%A8%AE" title="ਕਰੋਮੀਅਮ - panjabi" lang="pa" hreflang="pa" data-title="ਕਰੋਮੀਅਮ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="panjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pi mw-list-item"><a href="https://pi.wikipedia.org/wiki/%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%AE%E0%A4%BF%E0%A4%AF%E0%A4%AE" title="क्रोमियम - pali" lang="pi" hreflang="pi" data-title="क्रोमियम" 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/Chrom" title="Chrom - polonès" lang="pl" hreflang="pl" data-title="Chrom" data-language-autonym="Polski" data-language-local-name="polonès" 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/Cr%C3%B2m" title="Cròm - piemontès" lang="pms" hreflang="pms" data-title="Cròm" data-language-autonym="Piemontèis" data-language-local-name="piemontès" 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/%DA%A9%D8%B1%D9%88%D9%85%DB%8C%D8%A6%D9%85" title="کرومیئم - Western Punjabi" lang="pnb" hreflang="pnb" data-title="کرومیئم" 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/%DA%A9%D8%B1%D9%88%D9%85%D9%8A%D9%85" title="کروميم - paixtu" lang="ps" hreflang="ps" data-title="کروميم" data-language-autonym="پښتو" data-language-local-name="paixtu" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Cromo" title="Cromo - portuguès" lang="pt" hreflang="pt" data-title="Cromo" data-language-autonym="Português" data-language-local-name="portuguès" 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/Kurumu" title="Kurumu - quítxua" lang="qu" hreflang="qu" data-title="Kurumu" data-language-autonym="Runa Simi" data-language-local-name="quítxua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Crom" title="Crom - romanès" lang="ro" hreflang="ro" data-title="Crom" data-language-autonym="Română" data-language-local-name="romanès" 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/Hromu" title="Hromu - aromanès" lang="rup" hreflang="rup" data-title="Hromu" data-language-autonym="Armãneashti" data-language-local-name="aromanès" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - rus" lang="ru" hreflang="ru" data-title="Хром" data-language-autonym="Русский" data-language-local-name="rus" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sa mw-list-item"><a href="https://sa.wikipedia.org/wiki/%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%AE%E0%A4%BF%E0%A4%AF%E0%A4%AE" title="क्रोमियम - sànscrit" lang="sa" hreflang="sa" data-title="क्रोमियम" data-language-autonym="संस्कृतम्" data-language-local-name="sànscrit" class="interlanguage-link-target"><span>संस्कृतम्</span></a></li><li class="interlanguage-link interwiki-sc mw-list-item"><a href="https://sc.wikipedia.org/wiki/Cromu" title="Cromu - sard" lang="sc" hreflang="sc" data-title="Cromu" data-language-autonym="Sardu" data-language-local-name="sard" 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/Cromu" title="Cromu - sicilià" lang="scn" hreflang="scn" data-title="Cromu" data-language-autonym="Sicilianu" data-language-local-name="sicilià" 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/Chromium" title="Chromium - escocès" lang="sco" hreflang="sco" data-title="Chromium" data-language-autonym="Scots" data-language-local-name="escocès" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Hrom" title="Hrom - serbocroat" lang="sh" hreflang="sh" data-title="Hrom" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbocroat" 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/Chromium" title="Chromium - Simple English" lang="en-simple" hreflang="en-simple" data-title="Chromium" 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/Chr%C3%B3m" title="Chróm - eslovac" lang="sk" hreflang="sk" data-title="Chróm" data-language-autonym="Slovenčina" data-language-local-name="eslovac" 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/Krom" title="Krom - eslovè" lang="sl" hreflang="sl" data-title="Krom" data-language-autonym="Slovenščina" data-language-local-name="eslovè" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Koroomiyaam" title="Koroomiyaam - somali" lang="so" hreflang="so" data-title="Koroomiyaam" data-language-autonym="Soomaaliga" data-language-local-name="somali" 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/Kromi" title="Kromi - albanès" lang="sq" hreflang="sq" data-title="Kromi" data-language-autonym="Shqip" data-language-local-name="albanès" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - serbi" lang="sr" hreflang="sr" data-title="Хром" data-language-autonym="Српски / srpski" data-language-local-name="serbi" 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/Chrom" title="Chrom - Saterland Frisian" lang="stq" hreflang="stq" data-title="Chrom" data-language-autonym="Seeltersk" data-language-local-name="Saterland Frisian" 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/Kromium" title="Kromium - sondanès" lang="su" hreflang="su" data-title="Kromium" data-language-autonym="Sunda" data-language-local-name="sondanès" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Krom" title="Krom - suec" lang="sv" hreflang="sv" data-title="Krom" data-language-autonym="Svenska" data-language-local-name="suec" 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/Chromi" title="Chromi - suahili" lang="sw" hreflang="sw" data-title="Chromi" data-language-autonym="Kiswahili" data-language-local-name="suahili" 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%95%E0%AF%81%E0%AE%B0%E0%AF%8B%E0%AE%AE%E0%AE%BF%E0%AE%AF%E0%AE%AE%E0%AF%8D" title="குரோமியம் - tàmil" lang="ta" hreflang="ta" data-title="குரோமியம்" data-language-autonym="தமிழ்" data-language-local-name="tàmil" 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%95%E0%B1%8D%E0%B0%B0%E0%B1%8B%E0%B0%AE%E0%B0%BF%E0%B0%AF%E0%B0%82" title="క్రోమియం - telugu" lang="te" hreflang="te" data-title="క్రోమియం" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - tadjik" lang="tg" hreflang="tg" data-title="Хром" data-language-autonym="Тоҷикӣ" data-language-local-name="tadjik" 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%B9%82%E0%B8%84%E0%B8%A3%E0%B9%80%E0%B8%A1%E0%B8%B5%E0%B8%A2%E0%B8%A1" title="โครเมียม - tai" lang="th" hreflang="th" data-title="โครเมียม" data-language-autonym="ไทย" data-language-local-name="tai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl badge-Q70894304 mw-list-item" title=""><a href="https://tl.wikipedia.org/wiki/Kromo" title="Kromo - tagal" lang="tl" hreflang="tl" data-title="Kromo" data-language-autonym="Tagalog" data-language-local-name="tagal" 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/Krom" title="Krom - turc" lang="tr" hreflang="tr" data-title="Krom" data-language-autonym="Türkçe" data-language-local-name="turc" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - tàtar" lang="tt" hreflang="tt" data-title="Хром" data-language-autonym="Татарча / tatarça" data-language-local-name="tàtar" 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%AE%D8%B1%D9%88%D9%85" title="خروم - uigur" lang="ug" hreflang="ug" data-title="خروم" data-language-autonym="ئۇيغۇرچە / Uyghurche" data-language-local-name="uigur" 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%A5%D1%80%D0%BE%D0%BC" title="Хром - ucraïnès" lang="uk" hreflang="uk" data-title="Хром" data-language-autonym="Українська" data-language-local-name="ucraïnès" 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/%DA%A9%D8%B1%D9%88%D9%85%DB%8C%D8%A6%D9%85" title="کرومیئم - urdú" lang="ur" hreflang="ur" data-title="کرومیئم" data-language-autonym="اردو" data-language-local-name="urdú" 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/Xrom_(kimyoviy_element)" title="Xrom (kimyoviy element) - uzbek" lang="uz" hreflang="uz" data-title="Xrom (kimyoviy element)" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbek" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vep mw-list-item"><a href="https://vep.wikipedia.org/wiki/Hrom" title="Hrom - vepse" lang="vep" hreflang="vep" data-title="Hrom" data-language-autonym="Vepsän kel’" data-language-local-name="vepse" 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/Chromi" title="Chromi - vietnamita" lang="vi" hreflang="vi" data-title="Chromi" 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-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Cromo" title="Cromo - waray" lang="war" hreflang="war" data-title="Cromo" 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/%E9%93%AC" title="铬 - xinès wu" lang="wuu" hreflang="wuu" data-title="铬" data-language-autonym="吴语" data-language-local-name="xinès 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%A5%D1%80%D0%BE%D0%BC" title="Хром - calmuc" lang="xal" hreflang="xal" data-title="Хром" data-language-autonym="Хальмг" data-language-local-name="calmuc" class="interlanguage-link-target"><span>Хальмг</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%9B%D7%A8%D7%90%D7%9D" title="כראם - ídix" lang="yi" hreflang="yi" data-title="כראם" data-language-autonym="ייִדיש" data-language-local-name="ídix" 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/Kr%C3%B3m%C3%AD%E1%BB%8D%CC%80m%C3%B9" title="Krómíọ̀mù - ioruba" lang="yo" hreflang="yo" data-title="Krómíọ̀mù" data-language-autonym="Yorùbá" data-language-local-name="ioruba" class="interlanguage-link-target"><span>Yorùbá</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%93%AC" title="铬 - xinès" lang="zh" hreflang="zh" data-title="铬" data-language-autonym="中文" data-language-local-name="xinès" 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/%E9%89%BB" title="鉻 - xinès clàssic" lang="lzh" hreflang="lzh" data-title="鉻" data-language-autonym="文言" data-language-local-name="xinès clàssic" 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/Chromium" title="Chromium - xinès min del sud" lang="nan" hreflang="nan" data-title="Chromium" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="xinès min del sud" 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/%E9%89%BB" title="鉻 - cantonès" lang="yue" hreflang="yue" data-title="鉻" data-language-autonym="粵語" data-language-local-name="cantonès" 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/UmChiyangqwala" title="UmChiyangqwala - zulu" lang="zu" hreflang="zu" data-title="UmChiyangqwala" 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/Q725#sitelinks-wikipedia" title="Modificau enllaços interlingües" class="wbc-editpage">Modifica els enllaços</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="Espais de noms"> <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/Crom" title="Vegeu el contingut de la pàgina [c]" accesskey="c"><span>Pàgina</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Discussi%C3%B3:Crom&action=edit&redlink=1" rel="discussion" class="new" title="Discussió sobre el contingut d'aquesta pàgina (encara no existeix) [t]" accesskey="t"><span>Discussió</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="Canvia la variant de llengua" > <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">català</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="Vistes"> <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/Crom"><span>Mostra</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Crom&action=edit" title="Modifica el codi font d'aquesta pàgina [e]" accesskey="e"><span>Modifica</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Crom&action=history" title="Versions antigues d'aquesta pàgina [h]" accesskey="h"><span>Mostra l'historial</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Eines de la pàgina"> <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="Eines" > <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">Eines</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">Eines</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">amaga</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Més opcions" > <div class="vector-menu-heading"> Accions </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/Crom"><span>Mostra</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Crom&action=edit" title="Modifica el codi font d'aquesta pàgina [e]" accesskey="e"><span>Modifica</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Crom&action=history"><span>Mostra l'historial</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Especial:Enlla%C3%A7os/Crom" title="Una llista de totes les pàgines wiki que enllacen amb aquesta [j]" accesskey="j"><span>Què hi enllaça</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Especial:Seguiment/Crom" rel="nofollow" title="Canvis recents a pàgines enllaçades des d'aquesta pàgina [k]" accesskey="k"><span>Canvis relacionats</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Crom&oldid=34581080" title="Enllaç permanent a aquesta revisió de la pàgina"><span>Enllaç permanent</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Crom&action=info" title="Més informació sobre aquesta pàgina"><span>Informació de la pàgina</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Especial:Citau&page=Crom&id=34581080&wpFormIdentifier=titleform" title="Informació sobre com citar aquesta pàgina"><span>Citau aquest article</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Especial:UrlShortener&url=https%3A%2F%2Fca.wikipedia.org%2Fwiki%2FCrom"><span>Obtén una URL abreujada</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Especial:QrCode&url=https%3A%2F%2Fca.wikipedia.org%2Fwiki%2FCrom"><span>Descarrega el codi 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"> Imprimeix/exporta </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=Especial:Llibre&bookcmd=book_creator&referer=Crom"><span>Crea un llibre</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Especial:DownloadAsPdf&page=Crom&action=show-download-screen"><span>Baixa com a PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Crom&printable=yes" title="Versió per a impressió d'aquesta pàgina [p]" accesskey="p"><span>Versió per a impressora</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"> En altres projectes </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/Chromium" hreflang="en"><span>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/Q725" title="Enllaç a l'element del repositori de dades connectat [g]" accesskey="g"><span>Element a 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="Eines de la pàgina"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aparença"> <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">Aparença</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">amaga</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">De la Viquipèdia, l'enciclopèdia lliure</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="ca" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r34261971">.mw-parser-output .hatnote{width:100%;border-color:#77ccff;color:var(--color-base,#202122);background-color:#f5f5f5;margin-bottom:1em;font-style:italic}.mw-parser-output .hatnote i{font-style:normal}@media screen{html.skin-theme-clientpref-night .mw-parser-output .hatnote{color:var(--color-inverted,#fff);background-color:var(--background-color-inverted,#101418)}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .hatnote{color:var(--color-inverted,#fff);background-color:var(--background-color-inverted,#101418)}}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style> <table class="hatnote" cellspacing="5"> <tbody><tr> <td style="width: 25px; vertical-align: top;"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Disambig_grey.svg/22px-Disambig_grey.svg.png" decoding="async" width="22" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Disambig_grey.svg/33px-Disambig_grey.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Disambig_grey.svg/44px-Disambig_grey.svg.png 2x" data-file-width="260" data-file-height="200" /></span></span> </td> <td>Aquest article tracta sobre crom. Vegeu-ne altres significats a «<a href="/wiki/Verd_de_crom" class="mw-redirect" title="Verd de crom">Verd de crom</a>». </td></tr></tbody></table> <table class="infobox bordered" cellpadding="2" cellspacing="0" style="font-size: 88%; width: 22em; text-align: left"> <tbody><tr> <th colspan="2" style="font-size:130%;text-align:center; background-color: #FFC0C0; color: #000000">Crom </th></tr> <tr> <td colspan="2"><div title="atomic number Z=24; symbol=Cr" style="text-align:center; border:none; font-size:130%;"><b><sub><span style="font-size:smaller">24</span></sub>Cr</b></div> </td></tr> <tr> <td colspan="2"> <table width="100%" cellspacing="0" style="border: none; font-size: 110%"> <tbody><tr> <td colspan="2" style="text-align: center; border: none; font-size:88%;" class="nowrap"><a href="/wiki/Vanadi" title="Vanadi">vanadi</a> ← <b>crom</b> → <a href="/wiki/Mangan%C3%A8s" title="Manganès">manganès</a> </td></tr> <tr style="border: none"> <td style="text-align: center; border: none; line-height:110%; font-size:88%;">-<br />↑<br /><b>Cr</b><br />↓<br /><a href="/wiki/Molibd%C3%A8" title="Molibdè">Mo</a> </td> <td style="border: none"> <table width="100%" cellspacing="0" style="border: none"> <tbody><tr> <td style="border: none"><div style="position: relative; border: none"> <table class="nogrid" cellpadding="0" cellspacing="1" style="background-color: white; text-align: center; empty-cells: show; border: none"> <tbody><tr> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #a0ffa0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Hidrogen" title="Hidrogen"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 1: Hidrogen (H), altre no metall">   </span></a></div> </div> </td> <td colspan="30" style="border: none"> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #c0ffff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Heli" title="Heli"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 2: Heli (He), gas noble">   </span></a></div> </div> </td></tr> <tr style="border: none"> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff6666;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Liti" title="Liti"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 3: Liti (Li), metall alcalí">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffdead;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Beril%C2%B7li" title="Beril·li"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 4: Beril·li (Be), metall alcalinoterri">   </span></a></div> </div> </td> <td colspan="24" style="border: none"> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccc99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Bor" title="Bor"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 5: Bor (B), metal·loide">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #a0ffa0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Carboni" title="Carboni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 6: Carboni (C), altre no metall">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #a0ffa0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Nitrogen" title="Nitrogen"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 7: Nitrogen (N), altre no metall">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #a0ffa0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Oxigen" title="Oxigen"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 8: Oxigen (O), altre no metall">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffff99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Fluor" title="Fluor"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 9: Fluor (F), halogen">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #c0ffff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Ne%C3%B3" title="Neó"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 10: Neó (Ne), gas noble">   </span></a></div> </div> </td></tr> <tr style="border: none"> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff6666;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Sodi" title="Sodi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 11: Sodi (Na), metall alcalí">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffdead;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Magnesi" title="Magnesi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 12: Magnesi (Mg), metall alcalinoterri">   </span></a></div> </div> </td> <td colspan="24" style="border: none"> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Alumini" title="Alumini"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 13: Alumini (Al), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccc99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Silici" title="Silici"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 14: Silici (Si), metal·loide">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #a0ffa0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/F%C3%B2sfor" title="Fòsfor"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 15: Fòsfor (P), altre no metall">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #a0ffa0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Sofre" title="Sofre"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 16: Sofre (S), altre no metall">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffff99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Clor" title="Clor"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 17: Clor (Cl), halogen">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #c0ffff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Arg%C3%B3" title="Argó"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 18: Argó (Ar), gas noble">   </span></a></div> </div> </td></tr> <tr style="border: none"> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff6666;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Potassi" title="Potassi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 19: Potassi (K), metall alcalí">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffdead;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Calci" title="Calci"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 20: Calci (Ca), metall alcalinoterri">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Escandi" title="Escandi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 21: Escandi (Sc), metall de transició">   </span></a></div> </div> </td> <td colspan="14" style="border: none"> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Titani" title="Titani"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 22: Titani (Ti), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Vanadi" title="Vanadi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 23: Vanadi (V), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0; border:1px solid black; margin:-1px"><div style="position:absolute; top:0; left:0; z-index:3"><a class="mw-selflink selflink"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 24: Crom (Cr), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Mangan%C3%A8s" title="Manganès"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 25: Manganès (Mn), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Ferro" title="Ferro"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 26: Ferro (Fe), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Cobalt" title="Cobalt"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 27: Cobalt (Co), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/N%C3%ADquel" title="Níquel"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 28: Níquel (Ni), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Coure" title="Coure"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 29: Coure (Cu), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Zinc" title="Zinc"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 30: Zinc (Zn), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Gal%C2%B7li" title="Gal·li"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 31: Gal·li (Ga), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccc99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Germani" title="Germani"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 32: Germani (Ge), metal·loide">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccc99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Ars%C3%A8nic" title="Arsènic"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 33: Arsènic (As), metal·loide">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #a0ffa0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Seleni" title="Seleni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 34: Seleni (Se), altre no metall">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffff99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Brom" title="Brom"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 35: Brom (Br), halogen">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #c0ffff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Cript%C3%B3" title="Criptó"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 36: Criptó (Kr), gas noble">   </span></a></div> </div> </td></tr> <tr style="border: none"> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff6666;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Rubidi" title="Rubidi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 37: Rubidi (Rb), metall alcalí">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffdead;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Estronci" title="Estronci"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 38: Estronci (Sr), metall alcalinoterri">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Itri" title="Itri"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 39: Itri (Y), metall de transició">   </span></a></div> </div> </td> <td colspan="14" style="border: none"> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Zirconi" title="Zirconi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 40: Zirconi (Zr), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Niobi" title="Niobi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 41: Niobi (Nb), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Molibd%C3%A8" title="Molibdè"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 42: Molibdè (Mo), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Tecneci" title="Tecneci"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 43: Tecneci (Tc), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Ruteni" title="Ruteni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 44: Ruteni (Ru), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Rodi" title="Rodi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 45: Rodi (Rh), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Pal%C2%B7ladi_(element)" title="Pal·ladi (element)"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 46: Pal·ladi (element) (Pd), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Argent_(element)" class="mw-redirect" title="Argent (element)"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 47: Argent (element) (Ag), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Cadmi" title="Cadmi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 48: Cadmi (Cd), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Indi_(element)" title="Indi (element)"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 49: Indi (element) (In), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Estany_(element)" title="Estany (element)"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 50: Estany (Sn), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccc99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Antimoni" title="Antimoni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 51: Antimoni (Sb), metal·loide">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccc99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Tel%C2%B7luri" title="Tel·luri"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 52: Tel·luri (Te), metal·loide">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffff99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Iode" title="Iode"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 53: Iode (I), halogen">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #c0ffff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Xen%C3%B3" title="Xenó"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 54: Xenó (Xe), gas noble">   </span></a></div> </div> </td></tr> <tr style="border: none"> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff6666;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Cesi" title="Cesi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 55: Cesi (Cs), metall alcalí">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffdead;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Bari_(element)" title="Bari (element)"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 56: Bari (Ba), metall alcalinoterri">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Lantani" title="Lantani"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 57: Lantani (La), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Ceri" title="Ceri"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 58: Ceri (Ce), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Praseodimi" title="Praseodimi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 59: Praseodimi (Pr), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Neodimi" title="Neodimi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 60: Neodimi (Nd), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Prometi" title="Prometi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 61: Prometi (Pm), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Samari" title="Samari"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 62: Samari (Sm), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Europi" title="Europi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 63: Europi (Eu), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Gadolini" title="Gadolini"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 64: Gadolini (Gd), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Terbi" title="Terbi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 65: Terbi (Tb), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Disprosi" title="Disprosi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 66: Disprosi (Dy), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Holmi" title="Holmi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 67: Holmi (Ho), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Erbi" title="Erbi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 68: Erbi (Er), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Tuli" title="Tuli"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 69: Tuli (Tm), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Iterbi" title="Iterbi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 70: Iterbi (Yb), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffbfff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Luteci" title="Luteci"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 71: Luteci (Lu), lantànid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Hafni" title="Hafni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 72: Hafni (Hf), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/T%C3%A0ntal" title="Tàntal"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 73: Tàntal (Ta), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Tungst%C3%A8" title="Tungstè"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 74: Tungstè (W), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Reni" title="Reni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 75: Reni (Re), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Osmi" title="Osmi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 76: Osmi (Os), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Iridi" title="Iridi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 77: Iridi (Ir), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Plat%C3%AD" title="Platí"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 78: Platí (Pt), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Or" title="Or"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 79: Or (Au), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Mercuri_(element)" title="Mercuri (element)"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 80: Mercuri (Hg), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Tal%C2%B7li" title="Tal·li"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 81: Tal·li (Tl), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Plom" title="Plom"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 82: Plom (Pb), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Bismut" title="Bismut"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 83: Bismut (Bi), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Poloni" title="Poloni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 84: Poloni (Po), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffff99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/%C3%80stat" title="Àstat"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 85: Àstat (At), halogen">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #c0ffff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Rad%C3%B3" title="Radó"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 86: Radó (Rn), gas noble">   </span></a></div> </div> </td></tr> <tr style="border: none"> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff6666;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Franci" title="Franci"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 87: Franci (Fr), metall alcalí">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffdead;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Radi_(element)" title="Radi (element)"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 88: Radi (Ra), metall alcalinoterri">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Actini" title="Actini"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 89: Actini (Ac), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Tori" title="Tori"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 90: Tori (Th), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Protoactini" title="Protoactini"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 91: Protoactini (Pa), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Urani" title="Urani"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 92: Urani (U), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Neptuni" title="Neptuni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 93: Neptuni (Np), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Plutoni" title="Plutoni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 94: Plutoni (Pu), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Americi" title="Americi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 95: Americi (Am), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Curi" title="Curi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 96: Curi (Cm), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Berkeli" title="Berkeli"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 97: Berkeli (Bk), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Californi" title="Californi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 98: Californi (Cf), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Einsteini" title="Einsteini"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 99: Einsteini (Es), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Fermi_(element)" title="Fermi (element)"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 100: Fermi (Fm), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Mendelevi" title="Mendelevi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 101: Mendelevi (Md), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Nobeli" title="Nobeli"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 102: Nobeli (No), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ff99cc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Laurenci" class="mw-redirect" title="Laurenci"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 103: Laurenci (Lr), actínid">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Rutherfordi" title="Rutherfordi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 104: Rutherfordi (Rf), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Dubni" title="Dubni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 105: Dubni (Db), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Seaborgi" title="Seaborgi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 106: Seaborgi (Sg), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Bohri" title="Bohri"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 107: Bohri (Bh), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Hassi" title="Hassi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 108: Hassi (Hs), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Meitneri" title="Meitneri"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 109: Meitneri (Mt), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Darmstadti" title="Darmstadti"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 110: Darmstadti (Ds), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Roentgeni" title="Roentgeni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 111: Roentgeni (Rg), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffc0c0;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Copernici" title="Copernici"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 112: Copernici (Cn), metall de transició">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Nihoni" title="Nihoni"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 113: Nihoni (Nh), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Flerovi" title="Flerovi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 114: Flerovi (Fl), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Moscovi" title="Moscovi"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 115: Moscovi (Mc), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #cccccc;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Livermori" title="Livermori"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 116: Livermori (Lv), metall del bloc p">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #ffff99;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Tennes" title="Tennes"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 117: Tennes (Ts), halogen">   </span></a></div> </div> </td> <td style="border: none"><div style="position:relative; overflow:hidden; width:6px; height:8px; z-index:2; background-color: #c0ffff;"><div style="position:absolute; top:0; left:0; z-index:3"><a href="/wiki/Oganess%C3%B3" title="Oganessó"><span style="float:left; width:7px; height:9px; font-size:9px; line-height:9px; word-spacing:7px; cursor:pointer;" title="Element 118: Oganessó (Og), gas noble">   </span></a></div> </div> </td></tr></tbody></table> <div style="position: absolute; top: 1px; left: 30px; border: none"><span typeof="mw:File"><a href="/wiki/Fitxer:Cubic-face-centered.svg" class="mw-file-description" title="Crom té una estructura cristal·lina cúbica centrada en la cara"><img alt="Crom té una estructura cristal·lina cúbica centrada en la cara" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Cubic-face-centered.svg/26px-Cubic-face-centered.svg.png" decoding="async" width="26" height="30" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Cubic-face-centered.svg/39px-Cubic-face-centered.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Cubic-face-centered.svg/52px-Cubic-face-centered.svg.png 2x" data-file-width="109" data-file-height="126" /></a></span></div> <div style="border: none; font-size: 8px; position: absolute; top: 0; left: 65px"><span typeof="mw:File"><a href="/wiki/Fitxer:Electron_shell_024_Chromium.svg" class="mw-file-description"><img alt="Electrons per capa" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Electron_shell_024_Chromium.svg/42px-Electron_shell_024_Chromium.svg.png" decoding="async" width="42" height="45" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Electron_shell_024_Chromium.svg/63px-Electron_shell_024_Chromium.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Electron_shell_024_Chromium.svg/84px-Electron_shell_024_Chromium.svg.png 2x" data-file-width="800" data-file-height="860" /></a></span> </div> </div> <div style="border: none; text-align: right"><small><a href="/wiki/Taula_peri%C3%B2dica" title="Taula periòdica">Taula periòdica</a></small></div> </td></tr></tbody></table> </td></tr></tbody></table> </td></tr> <tr> <th colspan="2" style="text-align: center; background-color: #FFC0C0; color: #000000">Aspecte </th></tr> <tr> <td colspan="2" style="text-align: center">Metàl·lic platejat<br /><span typeof="mw:File"><a href="/wiki/Fitxer:Chromium_crystals_and_1cm3_cube.jpg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/08/Chromium_crystals_and_1cm3_cube.jpg/300px-Chromium_crystals_and_1cm3_cube.jpg" decoding="async" width="300" height="179" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/08/Chromium_crystals_and_1cm3_cube.jpg/450px-Chromium_crystals_and_1cm3_cube.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/08/Chromium_crystals_and_1cm3_cube.jpg/600px-Chromium_crystals_and_1cm3_cube.jpg 2x" data-file-width="5279" data-file-height="3153" /></a></span><br />Crom sòlid<br /><br /><span typeof="mw:File"><a href="/wiki/Fitxer:Chromium_spectrum_visible.png" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Chromium_spectrum_visible.png/300px-Chromium_spectrum_visible.png" decoding="async" width="300" height="52" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Chromium_spectrum_visible.png/450px-Chromium_spectrum_visible.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Chromium_spectrum_visible.png/600px-Chromium_spectrum_visible.png 2x" data-file-width="7430" data-file-height="1280" /></a></span><br />Línies espectrals del crom </td></tr> <tr> <th colspan="2" style="text-align: center; background-color: #FFC0C0; color: #000000">Propietats generals </th></tr> <tr> <th>Nom, <a href="/wiki/S%C3%ADmbol_qu%C3%ADmic" title="Símbol químic">símbol</a>, <a href="/wiki/Nombre_at%C3%B2mic" title="Nombre atòmic">nombre</a> </th> <td>Crom, Cr, 24 </td></tr> <tr> <th><a href="/wiki/Denominacions_col%C2%B7lectives_de_grups_d%27elements_de_caracter%C3%ADstiques_similars" title="Denominacions col·lectives de grups d'elements de característiques similars">Categoria d'elements</a> </th> <td><a href="/wiki/Metalls_de_transici%C3%B3" class="mw-redirect" title="Metalls de transició">Metalls de transició</a> </td></tr> <tr> <th><a href="/wiki/Grup_(taula_peri%C3%B2dica)" class="mw-redirect" title="Grup (taula periòdica)">Grup</a>, <a href="/wiki/Per%C3%ADode_(taula_peri%C3%B2dica)" class="mw-redirect" title="Període (taula periòdica)">període</a>, <a href="/wiki/Bloc_(taula_peri%C3%B2dica)" class="mw-redirect" title="Bloc (taula periòdica)">bloc</a> </th> <td><a href="/wiki/Grup_6_de_la_taula_peri%C3%B2dica" title="Grup 6 de la taula periòdica">6</a>, <a href="/wiki/Elements_del_per%C3%ADode_4" title="Elements del període 4">4</a>, <a href="/wiki/Elements_del_bloc_d" title="Elements del bloc d">d</a> </td></tr> <tr> <th><a href="/wiki/Pes_at%C3%B2mic" class="mw-redirect" title="Pes atòmic">Pes atòmic estàndard</a> </th> <td>51,9961(6) </td></tr> <tr> <th><a href="/wiki/Configuraci%C3%B3_electr%C3%B2nica" title="Configuració electrònica">Configuració electrònica</a> </th> <td>[<a href="/wiki/Arg%C3%B3" title="Argó">Ar</a>] 4s<sup>1</sup>3d<sup>5</sup><br />2, 8, 13, 1<br /><span typeof="mw:File"><a href="/wiki/Fitxer:Electron_shell_024_Chromium_-_no_label.svg" class="mw-file-description" title="Configuració electrònica de Crom"><img alt="Configuració electrònica de Crom" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/Electron_shell_024_Chromium_-_no_label.svg/140px-Electron_shell_024_Chromium_-_no_label.svg.png" decoding="async" width="140" height="140" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/Electron_shell_024_Chromium_-_no_label.svg/210px-Electron_shell_024_Chromium_-_no_label.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/67/Electron_shell_024_Chromium_-_no_label.svg/280px-Electron_shell_024_Chromium_-_no_label.svg.png 2x" data-file-width="1400" data-file-height="1400" /></a></span> </td></tr> <tr> <th colspan="2" style="text-align: center; background-color: #FFC0C0; color: #000000">Propietats físiques </th></tr> <tr> <th><a href="/wiki/Fase_(mat%C3%A8ria)" class="mw-redirect" title="Fase (matèria)">Fase</a> </th> <td><a href="/wiki/S%C3%B2lid" title="Sòlid">Sòlid</a> </td></tr> <tr> <th><a href="/wiki/Densitat" title="Densitat">Densitat</a><br />(prop de la <a href="/wiki/Temperatura_ambient" title="Temperatura ambient">t. a.</a>) </th> <td>7,19 g·cm<sup>−3</sup> </td></tr> <tr> <th>Densitat del<br />líquid en el <a href="/wiki/Punt_de_fusi%C3%B3" title="Punt de fusió">p. f.</a> </th> <td>6,3 g·cm<sup>−3</sup> </td></tr> <tr> <th><a href="/wiki/Punt_de_fusi%C3%B3" title="Punt de fusió">Punt de fusió</a> </th> <td>2.180 <a href="/wiki/Kelvin" title="Kelvin">K</a>, 1.907 °C </td></tr> <tr> <th><a href="/wiki/Punt_d%27ebullici%C3%B3" title="Punt d'ebullició">Punt d'ebullició</a> </th> <td>2.944 K, 2.671 °C </td></tr> <tr> <th><a href="/wiki/Entalpia_de_fusi%C3%B3" class="mw-redirect" title="Entalpia de fusió">Entalpia de fusió</a> </th> <td>21,0 <a href="/wiki/Quilojoule_per_mol" class="mw-redirect" title="Quilojoule per mol">kJ·mol<sup>−1</sup></a> </td></tr> <tr> <th><a href="/wiki/Entalpia_de_vaporitzaci%C3%B3" class="mw-redirect" title="Entalpia de vaporització">Entalpia de vaporització</a> </th> <td>339,5 kJ·mol<sup>−1</sup> </td></tr> <tr> <th><a href="/wiki/Capacitat_calor%C3%ADfica" class="mw-redirect" title="Capacitat calorífica">Capacitat calorífica molar</a> </th> <td>23,35 J·mol<sup>−1</sup>·K<sup>−1</sup> </td></tr> <tr> <th colspan="2" style="text-align: center"><a href="/wiki/Pressi%C3%B3_de_vapor" title="Pressió de vapor">Pressió de vapor</a> </th></tr> <tr> <td colspan="2"> <table class="wikitable" style="width: 100%; border-collapse: collapse"> <tbody><tr align="center"> <td>P (Pa) </td> <td>1 </td> <td>10 </td> <td>100 </td> <td>1 k </td> <td>10 k </td> <td>100 k </td></tr> <tr align="center"> <td>a T (K) </td> <td>1.656 </td> <td>1.807 </td> <td>1.991 </td> <td>2.223 </td> <td>2.530 </td> <td>2.942 </td></tr></tbody></table> </td></tr> <tr> <th colspan="2" style="text-align: center; background-color: #FFC0C0; color: #000000">Propietats atòmiques </th></tr> <tr> <th><a href="/wiki/Estat_d%27oxidaci%C3%B3" title="Estat d'oxidació">Estats d'oxidació</a> </th> <td><b>6</b>, 5, 4, <b>3</b>, 2, 1, -1, -2<br />(òxid <a href="/wiki/%C3%80cid" title="Àcid">àcid</a> fort) </td></tr> <tr> <th><a href="/wiki/Electronegativitat" title="Electronegativitat">Electronegativitat</a> </th> <td>1,66 (escala de Pauling) </td></tr> <tr> <th rowspan="3" valign="top"><a href="/wiki/Energia_d%27ionitzaci%C3%B3" title="Energia d'ionització">Energies d'ionització</a><br />(<a href="/wiki/Energies_d%27ionitzaci%C3%B3_molar_dels_elements" class="mw-redirect" title="Energies d'ionització molar dels elements">més</a>) </th> <td>1a: 652,9 kJ·mol<sup>−1</sup> </td></tr> <tr> <td>2a: 1.590,6 kJ·mol<sup>−1</sup> </td></tr> <tr> <td>3a: 2.987 kJ·mol<sup>−1</sup> </td></tr> <tr> <th><a href="/wiki/Radi_at%C3%B2mic" title="Radi atòmic">Radi atòmic</a> </th> <td><a href="/w/index.php?title=1_E%E2%88%9210_m&action=edit&redlink=1" class="new" title="1 E−10 m (encara no existeix)">128</a> <a href="/wiki/Pic%C3%B2metre" class="mw-redirect" title="Picòmetre">pm</a> </td></tr> <tr> <th><a href="/wiki/Radi_covalent" title="Radi covalent">Radi covalent</a> </th> <td><a href="/w/index.php?title=1_E%E2%88%9210_m&action=edit&redlink=1" class="new" title="1 E−10 m (encara no existeix)">139±5</a> pm </td></tr> <tr> <th colspan="2" style="text-align: center; background-color: #FFC0C0; color: #000000">Miscel·lània </th></tr> <tr> <th><a href="/wiki/Estructura_cristal%C2%B7lina" title="Estructura cristal·lina">Estructura cristal·lina</a> </th> <td><a href="/wiki/Sistema_cristal%C2%B7l%C3%AD_c%C3%BAbic" title="Sistema cristal·lí cúbic">Cúbica centrada en la cara</a> <br /> <span typeof="mw:File"><a href="/wiki/Fitxer:Cubic-face-centered.svg" class="mw-file-description" title="Crom té una estructura cristal·lina cúbica centrada en la cara"><img alt="Crom té una estructura cristal·lina cúbica centrada en la cara" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Cubic-face-centered.svg/60px-Cubic-face-centered.svg.png" decoding="async" width="60" height="69" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Cubic-face-centered.svg/90px-Cubic-face-centered.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Cubic-face-centered.svg/120px-Cubic-face-centered.svg.png 2x" data-file-width="109" data-file-height="126" /></a></span> </td></tr> <tr> <th rowspan="1" valign="top"><a href="/wiki/Magnetisme" title="Magnetisme">Ordenació magnètica</a> </th> <td><a href="/wiki/Antiferromagn%C3%A8tic" class="mw-redirect" title="Antiferromagnètic">Antiferromagnètic</a> </td></tr> <tr> <th><a href="/wiki/Resistivitat_el%C3%A8ctrica" class="mw-redirect" title="Resistivitat elèctrica">Resistivitat elèctrica</a> </th> <td>(20 °C) 125 nΩ·m </td></tr> <tr> <th><a href="/wiki/Conductivitat_t%C3%A8rmica" title="Conductivitat tèrmica">Conductivitat tèrmica</a> </th> <td>93,9 W·m<sup>−1</sup>·K<sup>−1</sup> </td></tr> <tr> <th><a href="/wiki/Dilataci%C3%B3_t%C3%A8rmica" title="Dilatació tèrmica">Dilatació tèrmica</a> </th> <td>(25 °C) 4,9 µm·m<sup>−1</sup>·K<sup>−1</sup> </td></tr> <tr> <th><a href="/wiki/Velocitat_del_so" title="Velocitat del so">Velocitat del so</a> (barra prima) </th> <td>(20 °C) 5.940 m·s<sup>−1</sup> </td></tr> <tr> <th><a href="/wiki/M%C3%B2dul_d%27elasticitat" title="Mòdul d'elasticitat">Mòdul d'elasticitat</a> </th> <td>279 GPa </td></tr> <tr> <th><a href="/wiki/M%C3%B2dul_de_cisallament" title="Mòdul de cisallament">Mòdul de cisallament</a> </th> <td>115 GPa </td></tr> <tr> <th><a href="/wiki/M%C3%B2dul_de_compressibilitat" title="Mòdul de compressibilitat">Mòdul de compressibilitat</a> </th> <td>160 GPa </td></tr> <tr> <th><a href="/wiki/Coeficient_de_Poisson" title="Coeficient de Poisson">Coeficient de Poisson</a> </th> <td>0,21 </td></tr> <tr> <th><a href="/wiki/Duresa_de_Mohs" class="mw-redirect" title="Duresa de Mohs">Duresa de Mohs</a> </th> <td>8,5 </td></tr> <tr> <th><a href="/wiki/Duresa_de_Vickers" class="mw-redirect" title="Duresa de Vickers">Duresa de Vickers</a> </th> <td>1.060 MPa </td></tr> <tr> <th><a href="/wiki/Duresa_de_Brinell" class="mw-redirect" title="Duresa de Brinell">Duresa de Brinell</a> </th> <td>1.120 MPa </td></tr> <tr> <th><a href="/wiki/Nombre_CAS" class="mw-redirect" title="Nombre CAS">Nombre CAS</a> </th> <td>7440-47-3 </td></tr> <tr> <th colspan="2" style="text-align: center; background-color: #FFC0C0; color: #000000">Isòtops més estables </th></tr> <tr> <td colspan="2" style="text-align: center">Article principal: <a href="/wiki/Is%C3%B2tops_del_crom" title="Isòtops del crom">Isòtops del crom</a> </td></tr> <tr> <td colspan="2"> <table class="wikitable" style="text-align: center; width: 100%; border-collapse: collapse"> <tbody><tr> <th><a href="/wiki/Is%C3%B2top" title="Isòtop">Iso</a> </th> <th><a href="/wiki/Abund%C3%A0ncia_natural" title="Abundància natural">AN</a> </th> <th><a href="/wiki/Per%C3%ADode_de_semidesintegraci%C3%B3" title="Període de semidesintegració">Semivida</a> </th> <th><a href="/wiki/Mode_de_desintegraci%C3%B3" class="mw-redirect" title="Mode de desintegració">MD</a> </th> <th><a href="/wiki/Energia_de_desintegraci%C3%B3" title="Energia de desintegració">ED</a> <small>(<a href="/wiki/Electr%C3%B3_volt" class="mw-redirect" title="Electró volt">MeV</a>)</small> </th> <th><a href="/wiki/Producte_de_desintegraci%C3%B3" title="Producte de desintegració">PD</a> </th></tr> <tr> <td><sup>50</sup>Cr </td> <td>4,345% </td> <td>> 1,8×10<sup>17</sup> <a href="/wiki/Any" title="Any">a</a> </td> <td><a href="/w/index.php?title=Captura_electr%C3%B2nica_doble&action=edit&redlink=1" class="new" title="Captura electrònica doble (encara no existeix)">εε</a> </td> <td>- </td> <td><sup>50</sup><a href="/wiki/Titani" title="Titani">Ti</a> </td></tr> <tr> <td rowspan="2"><sup>51</sup>Cr </td> <td rowspan="2"><a href="/wiki/Radiois%C3%B2top_sint%C3%A8tic" title="Radioisòtop sintètic">sin</a> </td> <td rowspan="2"><a href="/w/index.php?title=1_E6_s&action=edit&redlink=1" class="new" title="1 E6 s (encara no existeix)">27,7025 d</a> </td> <td><a href="/wiki/Captura_electr%C3%B2nica" title="Captura electrònica">ε</a> </td> <td>- </td> <td><sup>51</sup><a href="/wiki/Vanadi" title="Vanadi">V</a> </td></tr> <tr> <td><a href="/wiki/Raig_gamma" class="mw-redirect" title="Raig gamma">γ</a> </td> <td>0,320 </td> <td><sup></sup>- </td></tr> <tr> <td><sup>52</sup>Cr </td> <td>83,789% </td> <td colspan="4"><sup>52</sup>Cr és <a href="/wiki/Is%C3%B2top_estable" class="mw-redirect" title="Isòtop estable">estable</a> amb 28 <a href="/wiki/Neutr%C3%B3" title="Neutró">neutrons</a> </td></tr> <tr> <td><sup>53</sup>Cr </td> <td>9,501% </td> <td colspan="4"><sup>53</sup>Cr és <a href="/wiki/Is%C3%B2top_estable" class="mw-redirect" title="Isòtop estable">estable</a> amb 29 <a href="/wiki/Neutr%C3%B3" title="Neutró">neutrons</a> </td></tr> <tr> <td><sup>54</sup>Cr </td> <td>2,365% </td> <td colspan="4"><sup>54</sup>Cr és <a href="/wiki/Is%C3%B2top_estable" class="mw-redirect" title="Isòtop estable">estable</a> amb 30 <a href="/wiki/Neutr%C3%B3" title="Neutró">neutrons</a> </td></tr></tbody></table> </td></tr> </tbody></table> <p>El <b>crom</b> és un <a href="/wiki/Element_qu%C3%ADmic" title="Element químic">element químic</a> de <a href="/wiki/Nombre_at%C3%B2mic" title="Nombre atòmic">nombre atòmic</a> 24 que es troba en el grup 6 de la <a href="/wiki/Taula_peri%C3%B2dica_dels_elements" class="mw-redirect" title="Taula periòdica dels elements">taula periòdica dels elements</a>. El seu símbol és <b>Cr</b>. És un <a href="/wiki/Metall" title="Metall">metall</a> que s'empra especialment en metal·lúrgia. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Història"><span id="Hist.C3.B2ria"></span>Història</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=1" title="Modifica la secció: Història"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Crocoite-40436.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Crocoite-40436.jpg/220px-Crocoite-40436.jpg" decoding="async" width="220" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Crocoite-40436.jpg/330px-Crocoite-40436.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Crocoite-40436.jpg/440px-Crocoite-40436.jpg 2x" data-file-width="650" data-file-height="520" /></a><figcaption><a href="/wiki/Croco%C3%AFta" title="Crocoïta">Crocoïta</a>.</figcaption></figure> <p>El <a href="/wiki/1761" title="1761">1761</a>, el mineralogista alemany <a href="/wiki/Johann_Gottlob_Lehmann" title="Johann Gottlob Lehmann">Johann Gottlob Lehmann</a> (1719-1767) trobà en el dipòsit de Beryozovsky, prop de <a href="/wiki/Iekaterinburg" title="Iekaterinburg">Iekaterinburg</a>, als <a href="/wiki/Urals" title="Urals">Urals</a>, un mineral taronja rogenc que anomenà «plom roig de <a href="/wiki/Sib%C3%A8ria" title="Sibèria">Sibèria</a>»; aquest mineral es tractava de la <a href="/wiki/Crocoita" class="mw-redirect" title="Crocoita">crocoïta</a> <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 {PbCrO4}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>PbCrO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {PbCrO4}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9c45d875c5e8a0fdab6b33845d17a020e1e37125" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:8.327ex; height:2.843ex;" alt="{\displaystyle {\ce {PbCrO4}}}" /></span>, i suposà que era un compost de <a href="/wiki/Plom" title="Plom">plom</a> amb <a href="/wiki/Seleni" title="Seleni">seleni</a> i <a href="/wiki/Ferro" title="Ferro">ferro</a>.<sup id="cite_ref-:0_1-0" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>El <a href="/wiki/1770" title="1770">1770</a>, el botànic i zoòleg prussià <a href="/wiki/Peter_Simon_Pallas" title="Peter Simon Pallas">Peter Simon Pallas</a> (1741-1811) visità el mateix lloc que Lehmann i trobà el mineral, que considera molt útil com a pigment en pintures. Aviat el seu ús s'estengué i es posà de moda el <a href="/wiki/Groc_de_crom" title="Groc de crom">groc de crom</a>, un groc brillant.<sup id="cite_ref-:0_1-1" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Vauquelin,_Louis_Nicolas_(1763-1829)_CIPB1397.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Vauquelin%2C_Louis_Nicolas_%281763-1829%29_CIPB1397.jpg/220px-Vauquelin%2C_Louis_Nicolas_%281763-1829%29_CIPB1397.jpg" decoding="async" width="220" height="289" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Vauquelin%2C_Louis_Nicolas_%281763-1829%29_CIPB1397.jpg/330px-Vauquelin%2C_Louis_Nicolas_%281763-1829%29_CIPB1397.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Vauquelin%2C_Louis_Nicolas_%281763-1829%29_CIPB1397.jpg/440px-Vauquelin%2C_Louis_Nicolas_%281763-1829%29_CIPB1397.jpg 2x" data-file-width="1153" data-file-height="1515" /></a><figcaption><a href="/wiki/Louis_Nicolas_Vauquelin" title="Louis Nicolas Vauquelin">Louis Nicolas Vauquelin</a>.</figcaption></figure> <p>El <a href="/wiki/1797" title="1797">1797</a>, el farmacèutic i químic francès <a href="/wiki/Louis_Nicolas_Vauquelin" title="Louis Nicolas Vauquelin">Louis Nicolas Vauquelin</a> (1763-1829) rebé mostres de crocoïta i preparà òxid de crom(VI) <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 {CrO3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>CrO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {CrO3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8f05d93fb9cc939c8681a37404eeec87327d09c5" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:5.452ex; height:2.843ex;" alt="{\displaystyle {\ce {CrO3}}}" /></span> mesclant crocoïta amb <a href="/wiki/%C3%80cid_clorh%C3%ADdric" title="Àcid clorhídric">àcid clorhídric</a>. El <a href="/wiki/1798" title="1798">1798</a> descobrí que es podia aïllar crom metàl·lic escalfant l'òxid en un forn de carbó. També detectà traces de crom en gemmes precioses, com per exemple, en <a href="/wiki/Rob%C3%AD" title="Robí">robins</a> i <a href="/wiki/Maragda" title="Maragda">maragdes</a>. L'anomena <i>chrome</i> ‘crom<i>’</i> del mot grec χρῶμα <i>chrôma</i> 'color’, pels colors variats de les seves sals.<sup id="cite_ref-:0_1-2" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>El crom s'emprà principalment en pintures i altres aplicacions, fins que a finals del <a href="/wiki/Segle_XIX" title="Segle XIX">segle <span title="Nombre escrit en xifres romanes" style="font-variant:small-caps;">xix</span></a> es començà a fer servir com a additiu en acers, encara que fins a principis del segle <span title="Nombre escrit en xifres romanes" style="font-variant:small-caps;">xx</span>, quan s'inicià l'obtenció de crom metàl·lic per mitjà d'<a href="/w/index.php?title=Aluminot%C3%A8rmia&action=edit&redlink=1" class="new" title="Aluminotèrmia (encara no existeix)">aluminotèrmia</a>, no es generalitzà aquest ús. Actualment, entorn d'un 85% del crom s'utilitza en aliatges metàl·lics. </p> <div class="mw-heading mw-heading2"><h2 id="Estat_natural_i_obtenció"><span id="Estat_natural_i_obtenci.C3.B3"></span>Estat natural i obtenció</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=2" title="Modifica la secció: Estat natural i obtenció"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>El crom ocupa la posició 13a en quan a abundància a l'<a href="/wiki/Escor%C3%A7a_terrestre" title="Escorça terrestre">escorça terrestre</a>, amb una concentració mitjana de 100 ppm.<sup id="cite_ref-:0_1-3" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Actualment s'han descrit cent-tres minerals que presenten crom en la seva composició. Els minerals que contenen més d'un 55 % de crom, exceptuant el crom nadiu, són: <a href="/w/index.php?title=Fercromita&action=edit&redlink=1" class="new" title="Fercromita (encara no existeix)">fercromita</a> <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 {Cr3Fe_{1-x}(x=0 \!,\!6)}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>Fe</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> <mspace width="thinmathspace"></mspace> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> </mrow> <mtext>x</mtext> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>x</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo>=</mo> </mrow> <mn>0</mn> <mspace width="thinmathspace"></mspace> <mspace width="negativethinmathspace"></mspace> <mo>,</mo> <mspace width="negativethinmathspace"></mspace> <mn>6</mn> <mspace width="thinmathspace"></mspace> <mo stretchy="false">)</mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {Cr3Fe_{1-x}(x=0 \!,\!6)}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e4313a55297e4bdc893ba0703e5f9f7163e41ec7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.171ex; width:17.986ex; height:3.176ex;" alt="{\displaystyle {\ce {Cr3Fe_{1-x}(x=0 \!,\!6)}}}" /></span> (87,47 %), <a href="/wiki/Tongba%C3%AFta" title="Tongbaïta">tongbaïta</a>  <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 {Cr3C2}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>C</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {Cr3C2}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/07ab07916f5b24d3f55554a39402b5d93f86b07c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:6.376ex; height:2.843ex;" alt="{\displaystyle {\ce {Cr3C2}}}" /></span> (86,66 %), <a href="/wiki/Carlsbergita" title="Carlsbergita">carlsbergita</a> <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 {CrN}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mtext>CrN</mtext> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {CrN}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6e63fce93618405608e4db74f62f2004d9d1915f" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:4.333ex; height:2.176ex;" alt="{\displaystyle {\ce {CrN}}}" /></span> (78,78 %), <a href="/wiki/Eskola%C3%AFta" title="Eskolaïta">eskolaïta</a> <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 {Cr2O3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {Cr2O3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6f8a313d8bf4acf070fdda61ab317a5e4e2bbb7b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:6.506ex; height:2.843ex;" alt="{\displaystyle {\ce {Cr2O3}}}" /></span> (68,42 %), <a href="/wiki/Isovita" title="Isovita">isovita</a> <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 {(Cr,Fe)23C6}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>Cr</mtext> <mo>,</mo> <mtext>Fe</mtext> <mo stretchy="false">)</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>23</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>C</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>6</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {(Cr,Fe)23C6}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ca44ab06126e2a10fa33c7ac45440ef35c8b96c8" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:12.592ex; height:3.009ex;" alt="{\displaystyle {\ce {(Cr,Fe)23C6}}}" /></span> (67,41 %), <a href="/wiki/Bracewel%C2%B7lita" title="Bracewel·lita">bracewel·lita</a>, <a href="/wiki/Grimaldi%C3%AFta" title="Grimaldiïta">grimaldiïta</a> i <a href="/wiki/Guyana%C3%AFta" title="Guyanaïta">guyanaïta</a> <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 {CrO(OH)}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mtext>CrO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>OH</mtext> <mo stretchy="false">)</mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {CrO(OH)}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/aa536aac9c5f79f07260dab95ed2eb75e0141c2b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:9.758ex; height:2.843ex;" alt="{\displaystyle {\ce {CrO(OH)}}}" /></span> (tots tres 61,17 %).<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Chromite_poland.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Chromite_poland.jpg/220px-Chromite_poland.jpg" decoding="async" width="220" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Chromite_poland.jpg/330px-Chromite_poland.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/59/Chromite_poland.jpg/440px-Chromite_poland.jpg 2x" data-file-width="800" data-file-height="640" /></a><figcaption><a href="/wiki/Cromita" title="Cromita">Cromita</a> <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 {FeCr2O4}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>FeCr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {FeCr2O4}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1f228773038989edc71b736d222593b3660bcdec" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:9.057ex; height:2.843ex;" alt="{\displaystyle {\ce {FeCr2O4}}}" /></span>.</figcaption></figure><p> La producció mundial el 2022 de crom fou de 41 000 t. El principal productor mundial des de fa anys és <a href="/wiki/Sud-%C3%A0frica" title="Sud-àfrica">Sud-àfrica</a> (18 000 t el 2022), seguida de <a href="/wiki/Turquia" title="Turquia">Turquia</a> (6 900 t), <a href="/wiki/Kazakhstan" title="Kazakhstan">Kazakhstan</a> (6 500 t), l'<a href="/wiki/%C3%8Dndia" title="Índia">Índia</a> (4 200 t) i <a href="/wiki/Finl%C3%A0ndia" title="Finlàndia">Finlàndia</a> (2 200 t). Els recursos mundials de crom estan molt concentrats geogràficament (95 %) al Kazakhstan i a Sud-àfrica i es calculen el 560 000 t.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></p><figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Ferrochrome.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Ferrochrome.JPG/220px-Ferrochrome.JPG" decoding="async" width="220" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Ferrochrome.JPG/330px-Ferrochrome.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/65/Ferrochrome.JPG/440px-Ferrochrome.JPG 2x" data-file-width="1761" data-file-height="1407" /></a><figcaption>Ferrocrom.</figcaption></figure> <p>S'obté el crom a partir de la <a href="/wiki/Cromita" title="Cromita">cromita</a> <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 {FeCr2O4}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>FeCr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {FeCr2O4}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1f228773038989edc71b736d222593b3660bcdec" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:9.057ex; height:2.843ex;" alt="{\displaystyle {\ce {FeCr2O4}}}" /></span>. Els dos productes principals del refinament del minerals de crom són el ferrocrom i el crom metàl·lic. Per a aquests productes, els processos de fosa de mineral són força diferents. Per produir ferrocrom, el mineral de cromita es redueix en forns d'arc elèctric a gran escala o en foneries més petites amb alumini o silici en una reacció aluminotèrmica. Per a la fabricació de crom pur, el ferro s'ha de separar del crom en un procés de torrat i lixiviació en dos passos.<sup id="cite_ref-:0_1-4" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>El mineral de cromita s'escalfa amb una barreja de <a href="/wiki/Carbonat_de_calci" title="Carbonat de calci">carbonat de calci</a> i <a href="/wiki/Carbonat_de_sodi" title="Carbonat de sodi">carbonat de sodi</a> en presència d'aire. En aquestes condicions, el crom s'oxida a crom(VI), mentre que el ferro forma l'òxid de ferro(III) estable. El següent pas de lixiviació a temperatures elevades més altes dissol els cromats deixant enrere l'òxid de ferro insoluble.<sup id="cite_ref-:0_1-5" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>A continuació, el cromat es converteix mitjançant l'àcid sulfúric en el dicromat. </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {4FeCr2O4 + 8Na2CO3 + 7O2 -> 8Na2CrO4 + 2Fe2O3 + 8CO}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>FeCr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <mn>8</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>Na</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>CO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <mn>7</mn> <mspace width="thinmathspace"></mspace> <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"></mspace> </mrow> </msubsup> <mo stretchy="false">⟶</mo> <mn>8</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>Na</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>CrO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>Fe</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <mn>8</mn> <mspace width="thinmathspace"></mspace> <mtext>CO</mtext> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {4FeCr2O4 + 8Na2CO3 + 7O2 -> 8Na2CrO4 + 2Fe2O3 + 8CO}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/49cf7480af706aaaee7185094d0ff9068dc92de0" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:65.539ex; height:2.843ex;" alt="{\displaystyle {\ce {4FeCr2O4 + 8Na2CO3 + 7O2 -> 8Na2CrO4 + 2Fe2O3 + 8CO}}}" /></span><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {2Na2CrO4 + H2SO4 -> Na2Cr2O7 + Na2SO4 + H2O}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>Na</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>CrO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <msubsup> <mtext>H</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>SO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo stretchy="false">⟶</mo> <msubsup> <mtext>Na</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>7</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <msubsup> <mtext>Na</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>SO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <msubsup> <mtext>H</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mtext>O</mtext> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {2Na2CrO4 + H2SO4 -> Na2Cr2O7 + Na2SO4 + H2O}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6452937a05ffc07431799d0a9685b0a7daa724cc" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:54.717ex; height:2.843ex;" alt="{\displaystyle {\ce {2Na2CrO4 + H2SO4 -> Na2Cr2O7 + Na2SO4 + H2O}}}" /></span> </p><p>El dicromat es converteix posteriorment en òxid de crom(II) per reducció amb carboni i després es redueix en una reacció aluminotèrmica a crom.<sup id="cite_ref-:0_1-6" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {Na2Cr2O7 + 2C -> Cr2O3 + Na2CO3 + CO}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>Na</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>7</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <mtext>C</mtext> <mo stretchy="false">⟶</mo> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <msubsup> <mtext>Na</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>CO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <mtext>CO</mtext> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {Na2Cr2O7 + 2C -> Cr2O3 + Na2CO3 + CO}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/29b69f0a9013b2bf6909ff6fdf5a089a3214521a" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:45.804ex; height:2.843ex;" alt="{\displaystyle {\ce {Na2Cr2O7 + 2C -> Cr2O3 + Na2CO3 + CO}}}" /></span><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {Cr2O3 + 2Al -> Al2O3 + 2Cr}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <mtext>Al</mtext> <mo stretchy="false">⟶</mo> <msubsup> <mtext>Al</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo>+</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <mtext>Cr</mtext> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {Cr2O3 + 2Al -> Al2O3 + 2Cr}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9b9cae0bc8ddcbb67056399e9bb72d77530cb26d" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:31.668ex; height:2.843ex;" alt="{\displaystyle {\ce {Cr2O3 + 2Al -> Al2O3 + 2Cr}}}" /></span> </p> <div class="mw-heading mw-heading2"><h2 id="Propietats">Propietats</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=3" title="Modifica la secció: Propietats"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Propietats_físiques"><span id="Propietats_f.C3.ADsiques"></span>Propietats físiques</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=4" title="Modifica la secció: Propietats físiques"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>El crom és un <a href="/wiki/Metall_de_transici%C3%B3" title="Metall de transició">metall de transició</a> dur, fràgil, gris acerat i brillant. El seu punt de fusió és de 1 907 °C, el d'ebullició 2 671 °C i la seva densitat a 20 °C val 7,15 g/cm³.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Propietats_químiques"><span id="Propietats_qu.C3.ADmiques"></span>Propietats químiques</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=5" title="Modifica la secció: Propietats químiques"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>El seu <a href="/wiki/Estat_d%27oxidaci%C3%B3" title="Estat d'oxidació">estat d'oxidació</a> més alt és el +6, encara que aquests compostos són molt oxidants. Els estats d'oxidació +4 i +5 són poc freqüents, mentre que els estats més estables són +2 i +3. També és possible obtenir compostos en els quals el crom presenti estats d'oxidació més baixos, però són bastant rars. És molt resistent enfront de la <a href="/wiki/Corrosi%C3%B3" title="Corrosió">corrosió</a>. </p><p>El crom no reacciona ni amb l'aire, ni amb l'oxigen i ni amb l'aigua a temperatura ambient. Amb el fluor el crom reacciona directament a 400 °C i 200-300 atmosferes per formar <a href="/w/index.php?title=Fluorur_de_crom(VI)&action=edit&redlink=1" class="new" title="Fluorur de crom(VI) (encara no existeix)">fluorur de crom(VI)</a> <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 {CrF6}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>CrF</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>6</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {CrF6}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2662a00a451c36b0bbd116f6cab016d22261a2d7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:5.162ex; height:2.843ex;" alt="{\displaystyle {\ce {CrF6}}}" /></span>.<sup id="cite_ref-:1_5-0" class="reference"><a href="#cite_note-:1-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {Cr(s) + 3F2(g) -> CrF6(s) \; [groc]}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mo>+</mo> <mn>3</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>F</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>g</mtext> <mo stretchy="false">)</mo> </mrow> <mo stretchy="false">⟶</mo> <msubsup> <mtext>CrF</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>6</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mspace width="thickmathspace"></mspace> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">[</mo> <mtext>groc</mtext> <mo stretchy="false">]</mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {Cr(s) + 3F2(g) -> CrF6(s) \; [groc]}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/99c0343bdf78b84a28053820f4b5bebe346398b8" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:34.44ex; height:3.009ex;" alt="{\displaystyle {\ce {Cr(s) + 3F2(g) -> CrF6(s) \; [groc]}}}" /></span> </p><p>En condicions més suaus, es forma <a href="/w/index.php?title=Fluorur_de_crom(V)&action=edit&redlink=1" class="new" title="Fluorur de crom(V) (encara no existeix)">fluorur de crom(V)</a> <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 {CrF5}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>CrF</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>5</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {CrF5}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/013455526f25cddc981af970610b3cff742d10e8" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:5.162ex; height:2.843ex;" alt="{\displaystyle {\ce {CrF5}}}" /></span>.<sup id="cite_ref-:1_5-1" class="reference"><a href="#cite_note-:1-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {2Cr(s) + 5F2(g) -> 2CrF5(s) \; [vermell]}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mspace width="thinmathspace"></mspace> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mo>+</mo> <mn>5</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>F</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>g</mtext> <mo stretchy="false">)</mo> </mrow> <mo stretchy="false">⟶</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>CrF</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>5</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mspace width="thickmathspace"></mspace> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">[</mo> <mtext>vermell</mtext> <mo stretchy="false">]</mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {2Cr(s) + 5F2(g) -> 2CrF5(s) \; [vermell]}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b555ebb5b9b42088010bd354d90a08a3fd2be922" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:40.704ex; height:3.009ex;" alt="{\displaystyle {\ce {2Cr(s) + 5F2(g) -> 2CrF5(s) \; [vermell]}}}" /></span> </p><p>En condicions encara més suaus, el crom metàl·lic reacciona amb els tots els halògens per formar els corresponents triahalurs, segons les següents reaccions:<sup id="cite_ref-:1_5-2" class="reference"><a href="#cite_note-:1-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Bromid_chromit%C3%BD.PNG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Bromid_chromit%C3%BD.PNG/220px-Bromid_chromit%C3%BD.PNG" decoding="async" width="220" height="89" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Bromid_chromit%C3%BD.PNG/330px-Bromid_chromit%C3%BD.PNG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Bromid_chromit%C3%BD.PNG/440px-Bromid_chromit%C3%BD.PNG 2x" data-file-width="628" data-file-height="254" /></a><figcaption><a href="/w/index.php?title=Bromur_de_crom(III)&action=edit&redlink=1" class="new" title="Bromur de crom(III) (encara no existeix)">Bromur de crom(III)</a> <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 {CrBr3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>CrBr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {CrBr3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8bc671609f7e77144c3d21d27fc454d3854e315a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:6.201ex; height:2.843ex;" alt="{\displaystyle {\ce {CrBr3}}}" /></span>.</figcaption></figure><p> <span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {2Cr(s) + 3F2(g) -> 2CrF3(s) \; [verd]}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mspace width="thinmathspace"></mspace> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mo>+</mo> <mn>3</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>F</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>g</mtext> <mo stretchy="false">)</mo> </mrow> <mo stretchy="false">⟶</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>CrF</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mspace width="thickmathspace"></mspace> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">[</mo> <mtext>verd</mtext> <mo stretchy="false">]</mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {2Cr(s) + 3F2(g) -> 2CrF3(s) \; [verd]}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/918514e05c9add2f916f294c42f08f6e2e4c3738" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:37.734ex; height:3.009ex;" alt="{\displaystyle {\ce {2Cr(s) + 3F2(g) -> 2CrF3(s) \; [verd]}}}" /></span><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {2Cr(s) + 3Cl2(g) -> 2CrCl3(s) \; [violeta-roig]}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mspace width="thinmathspace"></mspace> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mo>+</mo> <mn>3</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>Cl</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>g</mtext> <mo stretchy="false">)</mo> </mrow> <mo stretchy="false">⟶</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>CrCl</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mspace width="thickmathspace"></mspace> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">[</mo> <mtext>violeta</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> </mrow> <mtext>roig</mtext> <mo stretchy="false">]</mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {2Cr(s) + 3Cl2(g) -> 2CrCl3(s) \; [violeta-roig]}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/48996cb359b69f766df86b3b7cd1872eee00dc99" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:47.359ex; height:3.009ex;" alt="{\displaystyle {\ce {2Cr(s) + 3Cl2(g) -> 2CrCl3(s) \; [violeta-roig]}}}" /></span><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {2Cr(s) + 3Br2(g) -> 2CrBr3(s) \; [verd \, fosc]}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mspace width="thinmathspace"></mspace> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mo>+</mo> <mn>3</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>Br</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>g</mtext> <mo stretchy="false">)</mo> </mrow> <mo stretchy="false">⟶</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>CrBr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mspace width="thickmathspace"></mspace> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">[</mo> <mtext>verd</mtext> <mspace width="thinmathspace"></mspace> <mtext>fosc</mtext> <mo stretchy="false">]</mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {2Cr(s) + 3Br2(g) -> 2CrBr3(s) \; [verd \, fosc]}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a28ff87e0cb0be5c367dc9f4e112d0baf3f23de1" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:44.023ex; height:3.009ex;" alt="{\displaystyle {\ce {2Cr(s) + 3Br2(g) -> 2CrBr3(s) \; [verd \, fosc]}}}" /></span><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {2Cr(s) + 3I2(g) -> 2CrI3(s) \; [verd \; fosc]}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mspace width="thinmathspace"></mspace> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mo>+</mo> <mn>3</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>I</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>g</mtext> <mo stretchy="false">)</mo> </mrow> <mo stretchy="false">⟶</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <msubsup> <mtext>CrI</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mspace width="thickmathspace"></mspace> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">[</mo> <mtext>verd</mtext> <mspace width="thickmathspace"></mspace> <mtext>fosc</mtext> <mo stretchy="false">]</mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {2Cr(s) + 3I2(g) -> 2CrI3(s) \; [verd \; fosc]}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ea94e16861f3bd6c6a2eae283038124c1bf96d56" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:40.846ex; height:3.009ex;" alt="{\displaystyle {\ce {2Cr(s) + 3I2(g) -> 2CrI3(s) \; [verd \; fosc]}}}" /></span></p><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Chrom(VI)-oxid.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Chrom%28VI%29-oxid.jpg/220px-Chrom%28VI%29-oxid.jpg" decoding="async" width="220" height="205" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Chrom%28VI%29-oxid.jpg/330px-Chrom%28VI%29-oxid.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Chrom%28VI%29-oxid.jpg/440px-Chrom%28VI%29-oxid.jpg 2x" data-file-width="860" data-file-height="800" /></a><figcaption>Òxid de crom(VI) <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 {CrO3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>CrO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {CrO3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8f05d93fb9cc939c8681a37404eeec87327d09c5" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:5.452ex; height:2.843ex;" alt="{\displaystyle {\ce {CrO3}}}" /></span>.</figcaption></figure><p>El crom metàl·lic es dissol en àcid clorhídric diluït per formar solucions que contenen el ió Cr(2+) aquós juntament amb gas hidrogen.<sup id="cite_ref-:1_5-3" class="reference"><a href="#cite_note-:1-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {Cr(s) + 2HCl(aq) -> Cr^2+(aq) + 2Cl^{-}(aq) + H2(g)}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>s</mtext> <mo stretchy="false">)</mo> </mrow> <mo>+</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <mtext>HCl</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>aq</mtext> <mo stretchy="false">)</mo> </mrow> <mo stretchy="false">⟶</mo> <msup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mo>+</mo> </mrow> </msup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>aq</mtext> <mo stretchy="false">)</mo> </mrow> <mo>+</mo> <mn>2</mn> <mspace width="thinmathspace"></mspace> <msup> <mtext>Cl</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> </mrow> </msup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>aq</mtext> <mo stretchy="false">)</mo> </mrow> <mo>+</mo> <msubsup> <mtext>H</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>g</mtext> <mo stretchy="false">)</mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {Cr(s) + 2HCl(aq) -> Cr^2+(aq) + 2Cl^{-}(aq) + H2(g)}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/da192e42a9c104d4e440a8bb16c00f813737142b" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:53.224ex; height:3.343ex;" alt="{\displaystyle {\ce {Cr(s) + 2HCl(aq) -> Cr^2+(aq) + 2Cl^{-}(aq) + H2(g)}}}" /></span> </p><p>En la pràctica, el Cr(II) és present com el ió complex <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 {[Cr(OH2)6]^2+}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">[</mo> <mtext>Cr</mtext> <msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <msubsup> <mtext>OH</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo stretchy="false">)</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>6</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo stretchy="false">]</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mo>+</mo> </mrow> </msup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {[Cr(OH2)6]^2+}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/52c5cd2e31acff09336da5d875db6f7fbbfd5984" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:13.685ex; height:3.509ex;" alt="{\displaystyle {\ce {[Cr(OH2)6]^2+}}}" /></span>. S'obtenen resultats similars amb àcid sulfúric, però mostres pures de crom poden ser resistents a l'atac. El crom metàl·lic no reacciona amb àcid nítric i de fet es passiva.<sup id="cite_ref-:1_5-4" class="reference"><a href="#cite_note-:1-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>El <a href="/wiki/Dicromat_de_potassi" title="Dicromat de potassi">dicromat de potassi</a> <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 {K2Cr2O7}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>K</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>7</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {K2Cr2O7}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8e3ec9dbaf5a6f89cebc91d005c247996f063fac" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:9.369ex; height:2.843ex;" alt="{\displaystyle {\ce {K2Cr2O7}}}" /></span> és un <a href="/wiki/Oxidant" title="Oxidant">oxidant</a> enèrgic i s'utilitza per a netejar material de vidre de laboratori de qualsevol resta orgànica que puguin contenir. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Lead_chromate.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/da/Lead_chromate.JPG/220px-Lead_chromate.JPG" decoding="async" width="220" height="194" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/da/Lead_chromate.JPG/330px-Lead_chromate.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/da/Lead_chromate.JPG/440px-Lead_chromate.JPG 2x" data-file-width="726" data-file-height="641" /></a><figcaption>Cromat de plom(IV).</figcaption></figure> <p>El <a href="/wiki/Verd_veron%C3%A8s" title="Verd veronès">verd veronès</a> o «verd de crom» és <a href="/wiki/%C3%92xid_de_crom(III)" title="Òxid de crom(III)">òxid de crom(III)</a> <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 {Cr2O3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {Cr2O3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6f8a313d8bf4acf070fdda61ab317a5e4e2bbb7b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:6.506ex; height:2.843ex;" alt="{\displaystyle {\ce {Cr2O3}}}" /></span> és un pigment que s'empra, per exemple, en pintures esmaltades i en la coloració de <a href="/wiki/Vidre" title="Vidre">vidres</a>. El «groc de crom» és el <a href="/w/index.php?title=Cromat_de_plom(IV)&action=edit&redlink=1" class="new" title="Cromat de plom(IV) (encara no existeix)">cromat de plom(IV)</a> <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 {PbCrO4}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>PbCrO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {PbCrO4}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9c45d875c5e8a0fdab6b33845d17a020e1e37125" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:8.327ex; height:2.843ex;" alt="{\displaystyle {\ce {PbCrO4}}}" /></span> també s'utilitza com a pigment.<sup id="cite_ref-:2_6-0" class="reference"><a href="#cite_note-:2-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Isòtops"><span id="Is.C3.B2tops"></span>Isòtops</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=6" title="Modifica la secció: Isòtops"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hom troba a la naturalesa tres isòtops estables: crom 52 (83,79 %), crom 53 (9,50 %) i crom 54 (2,37 %). L'altre 4,35 % correspon a l'isòtop crom 50, amb un <a href="/wiki/Per%C3%ADode_de_semidesintegraci%C3%B3" title="Període de semidesintegració">període de semidesintegració</a> t<sub>½</sub> > 1,3 × 10<sup>18</sup> anys, que malgrat no és estable, el seu alt període de semidesintegració fan que pugui considerar-s'hi. Els isòtops coneguts tenen <a href="/wiki/Nombre_m%C3%A0ssic" title="Nombre màssic">nombres màssics</a> entre 42 i el 68. El més estable és el crom 51 amb un període de semidesintegració de t<sub>½</sub> = 27,70 dies. En la resta són inferiors a les 24 hores, la majoria de menys d'un minut. El primer mode de decaïment abans de l'isòtop estable més abundant, el crom 52, és la <a href="/wiki/Captura_electr%C3%B2nica" title="Captura electrònica">captura electrònica</a>, mentre que després d'aquest, és la <a href="/wiki/Desintegraci%C3%B3_%CE%B2" title="Desintegració β">desintegració β<sup>–</sup></a>.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>El crom 53 és el producte de decaïment del manganès 53. Els continguts isotòpics en crom estan relacionats amb els de manganès, la qual cosa s'empra en <a href="/wiki/Geologia" title="Geologia">geologia</a>. Les relacions isotòpiques de Mn-Cr reforcen l'evidència d'alumini 26 i pal·ladi 107 en els començaments del <a href="/wiki/Sistema_solar" title="Sistema solar">sistema solar</a>. Les variacions en les relacions de crom 53/crom 52 i Mn/Cr en alguns meteorits indiquen una relació inicial de Mn-53/Mn-55 que suggerix que les relacions isotòpiques de Mn-Cr resulten del decaïment in situ de Mn-53 en cossos planetaris diferenciats. Per tant, el Cr-53 dona una evidència addicional de processos nucleosintètics just abans de la coalescència del sistema solar. </p> <div class="mw-heading mw-heading2"><h2 id="Aplicacions">Aplicacions</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=7" title="Modifica la secció: Aplicacions"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Verchromte_Felge.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/58/Verchromte_Felge.jpg/220px-Verchromte_Felge.jpg" decoding="async" width="220" height="229" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/58/Verchromte_Felge.jpg/330px-Verchromte_Felge.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/58/Verchromte_Felge.jpg/440px-Verchromte_Felge.jpg 2x" data-file-width="1826" data-file-height="1900" /></a><figcaption>Llanta cromada</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Indústria_metal·lúrgica"><span id="Ind.C3.BAstria_metal.C2.B7l.C3.BArgica"></span>Indústria metal·lúrgica</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=8" title="Modifica la secció: Indústria metal·lúrgica"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'ús en la indústria metal·lúrgica consumeix el 95 % de la producció de crom.<sup id="cite_ref-:0_1-7" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Gràcies a l’alta resistència a la corrosió, el crom s'utilitza per al recobriment mitjançant <a href="/wiki/Electrodeposici%C3%B3" class="mw-redirect" title="Electrodeposició">electrodeposició</a> (<a href="/wiki/Cromatge" title="Cromatge">cromatge</a>) de tot tipus de peces (metàl·liques, plàstiques) per a donar-los duresa i un acabat brillant inalterable.<sup id="cite_ref-:07_8-0" class="reference"><a href="#cite_note-:07-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> S'usa en els aliatges de ferro per a fabricar acer d'alta duresa (HSS) que conté 3 % – 5 % de crom i <a href="/wiki/Acer_inoxidable" title="Acer inoxidable">acer inoxidable</a> —la proporció de crom sol ser de l'11 %.<sup id="cite_ref-:0_1-8" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Els <a href="/wiki/Superaliatge" title="Superaliatge">superaliatges</a> de crom, resistents a la calor i a la corrosió, s'usen en la fabricació de motors d'avions i turbines de gas. Per la seva resistència a les altes temperatures, la <a href="/wiki/Cromita" title="Cromita">cromita</a> <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 {Cr2FeO4}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>FeO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {Cr2FeO4}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/66d22328e789dedf72c3b0c18726f30e2bfb0d1c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:9.057ex; height:2.843ex;" alt="{\displaystyle {\ce {Cr2FeO4}}}" /></span> s'utilitza com a element refractari en la fabricació de motlles per a la cocció de maons, per als forns de ciment i per a la fosa de metalls.<sup id="cite_ref-:07_8-1" class="reference"><a href="#cite_note-:07-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Indústria_del_vidre_i_la_ceràmica"><span id="Ind.C3.BAstria_del_vidre_i_la_cer.C3.A0mica"></span>Indústria del vidre i la ceràmica</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=9" title="Modifica la secció: Indústria del vidre i la ceràmica"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Ruby_laser_rod_2.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/84/Ruby_laser_rod_2.jpg/220px-Ruby_laser_rod_2.jpg" decoding="async" width="220" height="157" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/84/Ruby_laser_rod_2.jpg/330px-Ruby_laser_rod_2.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/84/Ruby_laser_rod_2.jpg/440px-Ruby_laser_rod_2.jpg 2x" data-file-width="2502" data-file-height="1783" /></a><figcaption>Robí de làser vermell.</figcaption></figure> <p>L'<a href="/wiki/%C3%92xid_de_crom(III)" title="Òxid de crom(III)">òxid de crom(III)</a> dona al vidre el color verd. També és un dopant del <a href="/wiki/Corind%C3%B3" title="Corindó">corindó</a> (<a href="/wiki/%C3%92xid_d%27alumini" title="Òxid d'alumini">òxid d'alumini</a>, <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 {\alpha-Al2O3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi>α</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> </mrow> <msubsup> <mtext>Al</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {\alpha-Al2O3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/135f7f636e8a62ef22b23234e22ce13ed3ca2c26" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:9.602ex; height:2.843ex;" alt="{\displaystyle {\ce {\alpha-Al2O3}}}" /></span>) que li confereix color vermell; s'utilitza en la fabricació de robins sintètics que es poden emprar, per exemple, en <a href="/wiki/L%C3%A0ser" title="Làser">làsers</a>.<sup id="cite_ref-:07_8-2" class="reference"><a href="#cite_note-:07-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Medicina">Medicina</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=10" title="Modifica la secció: Medicina"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Actualment s'utilitza el crom, aliat amb el <a href="/wiki/Cobalt" title="Cobalt">cobalt</a> i el <a href="/wiki/Molibd%C3%A8" title="Molibdè">molibdè</a> per fabricar stents coronaris de cara a reduir l'<a href="/wiki/Estenosi" title="Estenosi">estenosi</a> de les <a href="/wiki/Art%C3%A8ria_coron%C3%A0ria" title="Artèria coronària">artèries coronàries</a> (entre d'altres) que podrien originar <a href="/wiki/Infart_de_miocardi" title="Infart de miocardi">infarts</a>.<sup id="cite_ref-:07_8-3" class="reference"><a href="#cite_note-:07-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Yellow_school_buses_Pittsburgh.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/17/Yellow_school_buses_Pittsburgh.JPG/220px-Yellow_school_buses_Pittsburgh.JPG" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/17/Yellow_school_buses_Pittsburgh.JPG/330px-Yellow_school_buses_Pittsburgh.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/17/Yellow_school_buses_Pittsburgh.JPG/440px-Yellow_school_buses_Pittsburgh.JPG 2x" data-file-width="3072" data-file-height="2304" /></a><figcaption>Autobusos escolars dels Estats Units.</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Altres_camps">Altres camps</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=11" title="Modifica la secció: Altres camps"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Les sals del crom(III) s'utilitzen en l'adoberia de les pells —l'assaonat al crom empra hidroxisulfat de crom(III) <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 {Cr(OH)(SO4)}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <mtext>OH</mtext> <mo stretchy="false">)</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <msubsup> <mtext>SO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo stretchy="false">)</mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {Cr(OH)(SO4)}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8844869440be1fe100bbf290322aaf63b8c937ae" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:13.914ex; height:3.009ex;" alt="{\displaystyle {\ce {Cr(OH)(SO4)}}}" /></span>—, tot i que s'estan buscant productes alternatius.<sup id="cite_ref-:07_8-4" class="reference"><a href="#cite_note-:07-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>A causa de la seva toxicitat, les sals de Cr(VI) s'utilitzen per a la preservació de la fusta, per exemple, l'<a href="/w/index.php?title=Arsenat_de_coure_cromat&action=edit&redlink=1" class="new" title="Arsenat de coure cromat (encara no existeix)">arsenat de coure cromat</a> (CCA) s'utilitza en el tractament de la fusta per protegir la fusta dels fongs i dels insectes que ataquen la fusta, inclosos els <a href="/wiki/T%C3%A8rmits" title="Tèrmits">tèrmits</a> i els barrens marins. Les formulacions contenen Cr basat en l'òxid <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 {CrO3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>CrO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {CrO3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8f05d93fb9cc939c8681a37404eeec87327d09c5" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:5.452ex; height:2.843ex;" alt="{\displaystyle {\ce {CrO3}}}" /></span> que oscil·la entre el 35,3 % i el 65,5 %.<sup id="cite_ref-:0_1-9" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Els seus cromats i òxids s'empren en colorants i pintures. En general, les seves sals s'empren, a causa dels seus variats colors, com a <a href="/wiki/Mordent_(tints)" title="Mordent (tints)">mordents</a>. El groc cromat —<a href="/w/index.php?title=Cromat_de_plom(IV)&action=edit&redlink=1" class="new" title="Cromat de plom(IV) (encara no existeix)">cromat de plom(IV)</a> <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 {PbCrO4}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>PbCrO</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {PbCrO4}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9c45d875c5e8a0fdab6b33845d17a020e1e37125" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:8.327ex; height:2.843ex;" alt="{\displaystyle {\ce {PbCrO4}}}" /></span>— fou adoptat l'any 1939 per a tots els autobusos escolars dels <a href="/wiki/Estats_Units_d%27Am%C3%A8rica" title="Estats Units d'Amèrica">Estats Units</a> per oferir un alt contrast i visibilitat a les hores del crepuscle. No obstant això, la presència tant de plom tòxic com de crom hexavalent ha fet que sigui substituït en gran part per una família de colorants azoics, tot i que el groc de crom encara s'utilitza en algunes aplicacions marines i industrials.<sup id="cite_ref-:2_6-1" class="reference"><a href="#cite_note-:2-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>El <a href="/wiki/Dicromat_de_potassi" title="Dicromat de potassi">dicromat de potassi</a> <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 {K2Cr2O7}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>K</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>7</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {K2Cr2O7}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8e3ec9dbaf5a6f89cebc91d005c247996f063fac" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:9.369ex; height:2.843ex;" alt="{\displaystyle {\ce {K2Cr2O7}}}" /></span> és un reactiu químic que s'empra en la neteja de material de vidre de laboratori i en <a href="/wiki/An%C3%A0lisi_volum%C3%A8trica" class="mw-redirect" title="Anàlisi volumètrica">anàlisis volumètriques</a> com a <a href="/w/index.php?title=Agent_valorant&action=edit&redlink=1" class="new" title="Agent valorant (encara no existeix)">agent valorant</a>. </p><p>És comú l'ús del crom i d'algun dels seus òxids com <a href="/wiki/Catalitzadors" class="mw-redirect" title="Catalitzadors">catalitzadors</a>, per exemple, en la síntesi d'<a href="/wiki/Amon%C3%ADac" title="Amoníac">amoníac</a> (NH₃). </p> <div class="mw-heading mw-heading2"><h2 id="Paper_biològic"><span id="Paper_biol.C3.B2gic"></span>Paper biològic</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=12" title="Modifica la secció: Paper biològic"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>En principi, es considera al crom (en el seu estat d'oxidació +3) un <a href="/wiki/Element_essencial" class="mw-redirect" title="Element essencial">element essencial</a>, encara que no es coneixen amb exactitud les seues funcions. Sembla que participa en el <a href="/wiki/Metabolisme" title="Metabolisme">metabolisme</a> dels <a href="/wiki/L%C3%ADpids" class="mw-redirect" title="Lípids">lípids</a>, en el dels <a href="/wiki/Hidrat_de_carboni" class="mw-redirect" title="Hidrat de carboni">hidrats de carboni</a>, així com altres funcions. S'ha observat que alguns dels seus <a href="/wiki/Complex_(qu%C3%ADmica)" class="mw-redirect" title="Complex (química)">complexos</a> participen en la potenciació de l'acció de la <a href="/wiki/Insulina" title="Insulina">insulina</a>, per la qual cosa se'ls ha denominat "factor de tolerància a la glucosa"; a causa d'aquesta relació amb l'acció de la insulina, l'absència de crom provoca una intolerància a la glucosa, i aquesta absència provoca l'aparició de diversos problemes. No s'ha trobat cap <a href="/wiki/Metal%C2%B7loprote%C3%AFna" title="Metal·loproteïna">metal·loproteïna</a> amb activitat biològica que contingui crom i, per tant, no s'ha pogut explicar com actua. </p> <div class="mw-heading mw-heading2"><h2 id="Toxicitat">Toxicitat</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=13" title="Modifica la secció: Toxicitat"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="float:right;margin-left:10px;margin-bottom:10px;margin-top:10px;text-align:center"> <a href="/wiki/Pictogrames_de_perill_del_GHS" title="Pictogrames de perill del GHS">Pictogrames de perill del GHS</a> pel composts de crom(VI)<ul class="gallery mw-gallery-traditional" style="max-width: 369px;"> <li class="gallerybox" style="width: 115px"> <div class="thumb" style="width: 110px; height: 110px;"><span typeof="mw:File"><a href="/wiki/Fitxer:GHS-pictogram-exclam.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/GHS-pictogram-exclam.svg/80px-GHS-pictogram-exclam.svg.png" decoding="async" width="80" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/GHS-pictogram-exclam.svg/120px-GHS-pictogram-exclam.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c3/GHS-pictogram-exclam.svg/160px-GHS-pictogram-exclam.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span></div> <div class="gallerytext"></div> </li> <li class="gallerybox" style="width: 115px"> <div class="thumb" style="width: 110px; height: 110px;"><span typeof="mw:File"><a href="/wiki/Fitxer:GHS-pictogram-silhouette.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/21/GHS-pictogram-silhouette.svg/80px-GHS-pictogram-silhouette.svg.png" decoding="async" width="80" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/21/GHS-pictogram-silhouette.svg/120px-GHS-pictogram-silhouette.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/21/GHS-pictogram-silhouette.svg/160px-GHS-pictogram-silhouette.svg.png 2x" data-file-width="724" data-file-height="724" /></a></span></div> <div class="gallerytext"></div> </li> <li class="gallerybox" style="width: 115px"> <div class="thumb" style="width: 110px; height: 110px;"><span typeof="mw:File"><a href="/wiki/Fitxer:GHS-pictogram-pollu.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b9/GHS-pictogram-pollu.svg/80px-GHS-pictogram-pollu.svg.png" decoding="async" width="80" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b9/GHS-pictogram-pollu.svg/120px-GHS-pictogram-pollu.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b9/GHS-pictogram-pollu.svg/160px-GHS-pictogram-pollu.svg.png 2x" data-file-width="724" data-file-height="724" /></a></span></div> <div class="gallerytext"></div> </li> </ul> </div> <p>Generalment, no es considera que el crom metàl·lic i els compostos de crom(III) siguin, especialment, un risc per a la salut; es tracta d'un <a href="/wiki/Bioelement" title="Bioelement">element essencial</a> per a l'ésser humà, però en altes concentracions resulta tòxic. Els compostos de crom(VI), <a href="/wiki/Cromat" title="Cromat">cromats</a> i <a href="/wiki/Dicromats" class="mw-redirect" title="Dicromats">dicromats</a>, són tòxics si són ingerits, sent la dosi letal d'uns pocs grams. A nivells no letals, el crom(VI) és <a href="/wiki/Carcinogen" class="mw-redirect" title="Carcinogen">carcinogen</a>. La majoria dels compostos de crom(VI) irriten els <a href="/wiki/Ulls" class="mw-redirect" title="Ulls">ulls</a>, la <a href="/wiki/Pell" title="Pell">pell</a> i les <a href="/wiki/Mucosa" class="mw-redirect" title="Mucosa">mucoses</a>. L'exposició crònica a compostos de crom(VI) pot provocar danys permanents en els ulls.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Dichroman_amonn%C3%BD.PNG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Dichroman_amonn%C3%BD.PNG/220px-Dichroman_amonn%C3%BD.PNG" decoding="async" width="220" height="98" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Dichroman_amonn%C3%BD.PNG/330px-Dichroman_amonn%C3%BD.PNG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Dichroman_amonn%C3%BD.PNG/440px-Dichroman_amonn%C3%BD.PNG 2x" data-file-width="628" data-file-height="281" /></a><figcaption><a href="/wiki/Dicromat_d%27amoni" title="Dicromat d'amoni">Dicromat d'amoni</a> <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 {(NH4)2Cr2O7}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo stretchy="false">(</mo> <msubsup> <mtext>NH</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <mo stretchy="false">)</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>Cr</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> <msubsup> <mtext>O</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>7</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em"></mspace> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {(NH4)2Cr2O7}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e772ae285546d64c49d3448a3e8e5c9badb59a2e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:13.91ex; height:3.009ex;" alt="{\displaystyle {\ce {(NH4)2Cr2O7}}}" /></span>.</figcaption></figure> <p>L'<a href="/wiki/Organitzaci%C3%B3_Mundial_de_la_Salut" title="Organització Mundial de la Salut">Organització Mundial de la Salut</a> (OMS) recomana des del <a href="/wiki/1958" title="1958">1958</a> una <a href="/wiki/Concentraci%C3%B3_(qu%C3%ADmica)" class="mw-redirect" title="Concentració (química)">concentració</a> màxima de 0,05 <a href="/wiki/Mil%C2%B7ligram" title="Mil·ligram">mg</a>/litre de crom(VI) en l'aigua de consum. Aquest valor ha estat revisat fent nous estudis sobre els seus efectes en la salut, però ha romàs constant. </p> <div class="mw-heading mw-heading2"><h2 id="Referències"><span id="Refer.C3.A8ncies"></span>Referències</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=14" title="Modifica la secció: Referències"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-:0-1"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:0_1-0">1,00</a></sup> <sup><a href="#cite_ref-:0_1-1">1,01</a></sup> <sup><a href="#cite_ref-:0_1-2">1,02</a></sup> <sup><a href="#cite_ref-:0_1-3">1,03</a></sup> <sup><a href="#cite_ref-:0_1-4">1,04</a></sup> <sup><a href="#cite_ref-:0_1-5">1,05</a></sup> <sup><a href="#cite_ref-:0_1-6">1,06</a></sup> <sup><a href="#cite_ref-:0_1-7">1,07</a></sup> <sup><a href="#cite_ref-:0_1-8">1,08</a></sup> <sup><a href="#cite_ref-:0_1-9">1,09</a></sup></span> <span class="reference-text"><span class="citation book" style="font-style:normal" id="CITEREFKloprogge2021"><span style="font-variant: small-caps;">Kloprogge</span>, J. Theo. <a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/1223058470"><i>The periodic table : nature's building blocks: an introduction to the naturally occurring elements, their origins and their uses</i></a>.  Amsterdam: Elsevier, 2021. <span style="font-size:90%; white-space:nowrap;"><a href="/wiki/Especial:Fonts_bibliogr%C3%A0fiques/978-0-12-821538-8" title="Especial:Fonts bibliogràfiques/978-0-12-821538-8">ISBN 978-0-12-821538-8</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+periodic+table+%3A+nature%27s+building+blocks%3A+an+introduction+to+the+naturally+occurring+elements%2C+their+origins+and+their+uses&rft.aulast=Kloprogge&rft.aufirst=J.+Theo&rft.date=2021&rft.pub=Elsevier&rft.place=Amsterdam&rft.isbn=978-0-12-821538-8&rft_id=https%3A%2F%2Fwww.worldcat.org%2Foclc%2F1223058470"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFBarthelmy1997-2014"><span style="font-variant: small-caps;">Barthelmy</span>, David. «<a rel="nofollow" class="external text" href="http://webmineral.com/chem/Chem-Cr.shtml#.ZEYi-nZByM_">Mineral Species sorted by the element Cr Chromium</a>». <i>Mineralogy Database</i>, 1997-2014. [Consulta: 24 abril 2023].</span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal">«<a rel="nofollow" class="external text" href="https://www.usgs.gov/centers/national-minerals-information-center/chromium-statistics-and-information">Chromium Statistics and Information</a>».  U.S. Geological Survey, 01-01-2023. [Consulta: 25 abril 2023].</span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><span class="citation book" style="font-style:normal"> William M. Haynes. <a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/882266963"><i>CRC handbook of chemistry and physics: a ready-reference book of chemical and physical data.</i></a>. 95th edition.  Boca Raton, Florida: CRC Press, 2014. <span style="font-size:90%; white-space:nowrap;"><a href="/wiki/Especial:Fonts_bibliogr%C3%A0fiques/978-1-4822-0867-2" title="Especial:Fonts bibliogràfiques/978-1-4822-0867-2">ISBN 978-1-4822-0867-2</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=CRC+handbook+of+chemistry+and+physics%3A+a+ready-reference+book+of+chemical+and+physical+data.&rft.date=2014&rft.edition=95th+edition&rft.pub=CRC+Press&rft.place=Boca+Raton%2C+Florida&rft.isbn=978-1-4822-0867-2&rft_id=https%3A%2F%2Fwww.worldcat.org%2Foclc%2F882266963"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-:1-5"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:1_5-0">5,0</a></sup> <sup><a href="#cite_ref-:1_5-1">5,1</a></sup> <sup><a href="#cite_ref-:1_5-2">5,2</a></sup> <sup><a href="#cite_ref-:1_5-3">5,3</a></sup> <sup><a href="#cite_ref-:1_5-4">5,4</a></sup></span> <span class="reference-text"><span class="citation" style="font-style:normal"><span style="font-variant: small-caps;">Winter</span>, Mark. «<a rel="nofollow" class="external text" href="https://www.webelements.com/chromium/">Chromium. The essentials</a>». <i>WebElements</i>.  The University of Sheffield and WebElements Ltd. [Consulta: 25 abril 2023].</span></span> </li> <li id="cite_note-:2-6"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:2_6-0">6,0</a></sup> <sup><a href="#cite_ref-:2_6-1">6,1</a></sup></span> <span class="reference-text"><span class="citation" style="font-style:normal">«<a rel="nofollow" class="external text" href="https://www.rsc.org/periodic-table/element/24/chromium">Chromium - Element information, properties and uses | Periodic Table</a>».  Royal Society of Chemistry. [Consulta: 25 abril 2023].</span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal">«<a rel="nofollow" class="external text" href="https://www.nndc.bnl.gov/nudat3/">Z = 24</a>». <i>NuDat 3</i>.  National Nuclear Data Center (NNDC) at Brookhaven National Laboratory. [Consulta: 25 abril 2023].</span></span> </li> <li id="cite_note-:07-8"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:07_8-0">8,0</a></sup> <sup><a href="#cite_ref-:07_8-1">8,1</a></sup> <sup><a href="#cite_ref-:07_8-2">8,2</a></sup> <sup><a href="#cite_ref-:07_8-3">8,3</a></sup> <sup><a href="#cite_ref-:07_8-4">8,4</a></sup></span> <span class="reference-text"><span class="citation book" style="font-style:normal" id="CITEREFSanz_BalaguéTomasa_Guix2017"><span style="font-variant: small-caps;">Sanz Balagué</span>, J.; <span style="font-variant: small-caps;">Tomasa Guix</span>, O. <a rel="nofollow" class="external text" href="http://worldcat.org/oclc/1120317169"><i>Elements i recursos minerals: aplicacions i reciclatge</i></a>. 3a.  Iniciativa Digital Politècnica, 2017. <span style="font-size:90%; white-space:nowrap;"><a href="/wiki/Especial:Fonts_bibliogr%C3%A0fiques/978-84-9880-666-3" title="Especial:Fonts bibliogràfiques/978-84-9880-666-3">ISBN 978-84-9880-666-3</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Elements+i+recursos+minerals%3A+aplicacions+i+reciclatge&rft.aulast=Sanz+Balagu%C3%A9&rft.aufirst=J.&rft.date=2017&rft.edition=3a&rft.pub=Iniciativa+Digital+Polit%C3%A8cnica&rft.isbn=978-84-9880-666-3&rft_id=http%3A%2F%2Fworldcat.org%2Foclc%2F1120317169"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><a href="#cite_ref-9">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFDesMariasCosta2019"><span style="font-variant: small-caps;">DesMarias</span>, Thomas Liborio; <span style="font-variant: small-caps;">Costa</span>, Max «<a rel="nofollow" class="external text" href="https://linkinghub.elsevier.com/retrieve/pii/S2468202019300294">Mechanisms of chromium-induced toxicity</a>» (en anglès). <i>Current Opinion in Toxicology</i>, 14, 4-2019, pàg. 1–7. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1016%2Fj.cotox.2019.05.003">10.1016/j.cotox.2019.05.003</a>. <a href="/wiki/PubMed" title="PubMed">PMC</a>: <a rel="nofollow" class="external text" href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMCPMC6737927">PMC6737927</a>. <a href="/wiki/PubMed" title="PubMed">PMID</a>: <a href="https://www.ncbi.nlm.nih.gov/pubmed/31511838?dopt=Abstract" class="extiw" title="pmid:31511838">31511838</a>.</span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Vegeu_també"><span id="Vegeu_tamb.C3.A9"></span>Vegeu també</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=15" title="Modifica la secció: Vegeu també"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Qu%C3%ADmica_de_l%27organocrom" class="mw-redirect" title="Química de l'organocrom">Química de l'organocrom</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Enllaços_externs"><span id="Enlla.C3.A7os_externs"></span>Enllaços externs</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Crom&action=edit&section=16" title="Modifica la secció: Enllaços externs"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r33663753">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:#f9f9f9;display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}.mw-parser-output .side-box-center{clear:both;margin:auto}}</style><div class="side-box metadata side-box-right plainlinks"> <div class="side-box-flex"> <div class="side-box-image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" 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.mw-parser-output .languageicon{background-color:inherit;color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .languageicon{background-color:inherit;color:white}}</style><span class="languageicon" title="En anglès">(anglès)</span></li> <li><a rel="nofollow" class="external text" href="http://environmentalchemistry.com/yogi/periodic/Cr.html">environmentalchemistry.com - Crom</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r33711417" /><span class="languageicon" title="En anglès">(anglès)</span></li> <li><a rel="nofollow" class="external text" href="http://education.jlab.org/itselemental/ele024.html">It's Elemental </a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r33711417" /><span class="languageicon" title="En anglès">(anglès)</span></li></ul> <p><br /> </p> <table class="navbox collapsible"> <tbody><tr> <th colspan="32"><a href="/wiki/Taula_peri%C3%B2dica" title="Taula periòdica">Taula periòdica</a> </th></tr> <tr> <td width="3.125%" style="background-color:#a0ffa0"><a href="/wiki/Hidrogen" title="Hidrogen">H</a> </td> <td width="3.125%" colspan="30">  </td> <td width="3.125%" style="background-color:#c0ffff"><a href="/wiki/Heli" title="Heli">He</a> </td></tr> <tr> <td style="background-color:#ff6666"><a href="/wiki/Liti" title="Liti">Li</a> </td> <td style="background-color:#ffdead"><a href="/wiki/Beril%C2%B7li" title="Beril·li">Be</a> </td> <td colspan="24">  </td> <td style="background-color:#cccc99"><a href="/wiki/Bor" title="Bor">B</a> </td> <td style="background-color:#a0ffa0"><a href="/wiki/Carboni" title="Carboni">C</a> </td> <td style="background-color:#a0ffa0"><a href="/wiki/Nitrogen" title="Nitrogen">N</a> </td> <td style="background-color:#a0ffa0"><a href="/wiki/Oxigen" title="Oxigen">O</a> </td> <td style="background-color:#ffff99"><a href="/wiki/Fluor" title="Fluor">F</a> </td> <td style="background-color:#c0ffff"><a href="/wiki/Ne%C3%B3" title="Neó">Ne</a> </td></tr> <tr> <td style="background-color:#ff6666"><a href="/wiki/Sodi" title="Sodi">Na</a> </td> <td style="background-color:#ffdead"><a href="/wiki/Magnesi" title="Magnesi">Mg</a> </td> <td colspan="24">  </td> <td style="background-color:#cccccc"><a href="/wiki/Alumini" title="Alumini">Al</a> </td> <td style="background-color:#cccc99"><a href="/wiki/Silici" title="Silici">Si</a> </td> <td style="background-color:#a0ffa0"><a href="/wiki/F%C3%B2sfor" title="Fòsfor">P</a> </td> <td style="background-color:#a0ffa0"><a href="/wiki/Sofre" title="Sofre">S</a> </td> <td style="background-color:#ffff99"><a href="/wiki/Clor" title="Clor">Cl</a> </td> <td style="background-color:#c0ffff"><a href="/wiki/Arg%C3%B3" title="Argó">Ar</a> </td></tr> <tr> <td style="background-color:#ff6666"><a href="/wiki/Potassi" title="Potassi">K</a> </td> <td style="background-color:#ffdead"><a href="/wiki/Calci" title="Calci">Ca</a> </td> <td colspan="14">  </td> <td style="background-color:#ffc0c0"><a href="/wiki/Escandi" title="Escandi">Sc</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Titani" title="Titani">Ti</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Vanadi" title="Vanadi">V</a> </td> <td style="background-color:#ffc0c0"><a class="mw-selflink selflink">Cr</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Mangan%C3%A8s" title="Manganès">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/Cobalt" title="Cobalt">Co</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/N%C3%ADquel" title="Níquel">Ni</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Coure" title="Coure">Cu</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Zinc" title="Zinc">Zn</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Gal%C2%B7li" title="Gal·li">Ga</a> </td> <td style="background-color:#cccc99"><a href="/wiki/Germani" title="Germani">Ge</a> </td> <td style="background-color:#cccc99"><a href="/wiki/Ars%C3%A8nic" title="Arsènic">As</a> </td> <td style="background-color:#a0ffa0"><a href="/wiki/Seleni" title="Seleni">Se</a> </td> <td style="background-color:#ffff99"><a href="/wiki/Brom" title="Brom">Br</a> </td> <td style="background-color:#c0ffff"><a href="/wiki/Cript%C3%B3" title="Criptó">Kr</a> </td></tr> <tr> <td style="background-color:#ff6666"><a href="/wiki/Rubidi" title="Rubidi">Rb</a> </td> <td style="background-color:#ffdead"><a href="/wiki/Estronci" title="Estronci">Sr</a> </td> <td colspan="14">  </td> <td style="background-color:#ffc0c0"><a href="/wiki/Itri" title="Itri">Y</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Zirconi" title="Zirconi">Zr</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Niobi" title="Niobi">Nb</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Molibd%C3%A8" title="Molibdè">Mo</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Tecneci" title="Tecneci">Tc</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Ruteni" title="Ruteni">Ru</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Rodi" title="Rodi">Rh</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Pal%C2%B7ladi_(element)" title="Pal·ladi (element)">Pd</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Argent_(element)" class="mw-redirect" title="Argent (element)">Ag</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Cadmi" title="Cadmi">Cd</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Indi_(element)" title="Indi (element)">In</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Estany_(element)" title="Estany (element)">Sn</a> </td> <td style="background-color:#cccc99"><a href="/wiki/Antimoni" title="Antimoni">Sb</a> </td> <td style="background-color:#cccc99"><a href="/wiki/Tel%C2%B7luri" title="Tel·luri">Te</a> </td> <td style="background-color:#ffff99"><a href="/wiki/Iode" title="Iode">I</a> </td> <td style="background-color:#c0ffff"><a href="/wiki/Xen%C3%B3" title="Xenó">Xe</a> </td></tr> <tr> <td width="3.125%" style="background-color:#ff6666"><a href="/wiki/Cesi" title="Cesi">Cs</a> </td> <td width="3.125%" style="background-color:#ffdead"><a href="/wiki/Bari_(element)" title="Bari (element)">Ba</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Lantani" title="Lantani">La</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Ceri" title="Ceri">Ce</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Praseodimi" title="Praseodimi">Pr</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Neodimi" title="Neodimi">Nd</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Prometi" title="Prometi">Pm</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Samari" title="Samari">Sm</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Europi" title="Europi">Eu</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Gadolini" title="Gadolini">Gd</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Terbi" title="Terbi">Tb</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Disprosi" title="Disprosi">Dy</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Holmi" title="Holmi">Ho</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Erbi" title="Erbi">Er</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Tuli" title="Tuli">Tm</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Iterbi" title="Iterbi">Yb</a> </td> <td width="3.125%" style="background-color:#ffbfff"><a href="/wiki/Luteci" title="Luteci">Lu</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/Hafni" title="Hafni">Hf</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/T%C3%A0ntal" title="Tàntal">Ta</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/Tungst%C3%A8" title="Tungstè">W</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/Reni" title="Reni">Re</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/Osmi" title="Osmi">Os</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/Iridi" title="Iridi">Ir</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/Plat%C3%AD" title="Platí">Pt</a> </td> <td width="3.125%" style="background-color:#ffc0c0"><a href="/wiki/Or" title="Or">Au</a> </td> <td width="3.125%" style="background-color:#cccccc"><a href="/wiki/Mercuri_(element)" title="Mercuri (element)">Hg</a> </td> <td width="3.125%" style="background-color:#cccccc"><a href="/wiki/Tal%C2%B7li" title="Tal·li">Tl</a> </td> <td width="3.125%" style="background-color:#cccccc"><a href="/wiki/Plom" title="Plom">Pb</a> </td> <td width="3.125%" style="background-color:#cccccc"><a href="/wiki/Bismut" title="Bismut">Bi</a> </td> <td width="3.125%" style="background-color:#cccccc"><a href="/wiki/Poloni" title="Poloni">Po</a> </td> <td width="3.125%" style="background-color:#cccc99"><a href="/wiki/%C3%80stat" title="Àstat">At</a> </td> <td width="3.125%" style="background-color:#c0ffff"><a href="/wiki/Rad%C3%B3" title="Radó">Rn</a> </td></tr> <tr> <td style="background-color:#ff6666"><a href="/wiki/Franci" title="Franci">Fr</a> </td> <td style="background-color:#ffdead"><a href="/wiki/Radi_(element)" title="Radi (element)">Ra</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Actini" title="Actini">Ac</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Tori" title="Tori">Th</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Protoactini" title="Protoactini">Pa</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Urani" title="Urani">U</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Neptuni" title="Neptuni">Np</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Plutoni" title="Plutoni">Pu</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Americi" title="Americi">Am</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Curi" title="Curi">Cm</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Berkeli" title="Berkeli">Bk</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Californi" title="Californi">Cf</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Einsteini" title="Einsteini">Es</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Fermi_(element)" title="Fermi (element)">Fm</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Mendelevi" title="Mendelevi">Md</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Nobeli" title="Nobeli">No</a> </td> <td style="background-color:#ff99cc"><a href="/wiki/Lawrenci" title="Lawrenci">Lr</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Rutherfordi" title="Rutherfordi">Rf</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Dubni" title="Dubni">Db</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Seaborgi" title="Seaborgi">Sg</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Bohri" title="Bohri">Bh</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Hassi" title="Hassi">Hs</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Meitneri" title="Meitneri">Mt</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Darmstadti" title="Darmstadti">Ds</a> </td> <td style="background-color:#ffc0c0"><a href="/wiki/Roentgeni" title="Roentgeni">Rg</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Copernici" title="Copernici">Cn</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Nihoni" title="Nihoni">Nh</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Flerovi" title="Flerovi">Fl</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Moscovi" title="Moscovi">Mc</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Livermori" title="Livermori">Lv</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Tennes" title="Tennes">Ts</a> </td> <td style="background-color:#cccccc"><a href="/wiki/Oganess%C3%B3" title="Oganessó">Og</a> </td></tr> <tr> <td colspan="32"> <table border="1" align="center" style="border:1px solid #ffffff; border-collapse:collapse; font-size: smaller; width:100%" rules="all" cellpadding="1"> <tbody><tr> <td style="background-color:#ff6666" width="10%"><a href="/wiki/Metall_alcal%C3%AD" title="Metall alcalí">Metalls alcalins</a> </td> <td style="background-color:#ffdead" width="10%"><a href="/wiki/Alcalinoterris" class="mw-redirect" title="Alcalinoterris">Alcalinoterris</a> </td> <td style="background-color:#ffbfff" width="10%"><a href="/wiki/Lantanoide" title="Lantanoide">Lantanoides</a> </td> <td style="background-color:#ff99cc" width="10%"><a href="/wiki/Actinoide" title="Actinoide">Actinoides</a> </td> <td style="background-color:#ffc0c0" width="10%"><a href="/wiki/Metall_de_transici%C3%B3" title="Metall de transició">Metalls de transició</a> </td> <td style="background-color:#cccccc" width="10%">Altres <a href="/wiki/Metalls" class="mw-redirect" title="Metalls">metalls</a> </td> <td style="background-color:#cccc99" width="10%"><a href="/wiki/Semimetall" title="Semimetall">Semimetalls</a> </td> <td style="background-color:#ffff99" width="10%"><a href="/wiki/Halogen" title="Halogen">No-metalls - Halògens</a> </td> <td style="background-color:#c0ffff" width="10%"><a href="/wiki/Gas_noble" title="Gas noble">No-metalls - Gasos nobles</a> </td> <td 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