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data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Menú principal" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Menú principal</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Menú principal</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.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-main-menu.unpin">amaga</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navegació </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Portada" title="Visiteu la pàgina principal [z]" accesskey="z"><span>Portada</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Especial:Article_aleatori" title="Carrega una pàgina a l’atzar [x]" accesskey="x"><span>Article a l'atzar</span></a></li><li id="n-Articles-de-qualitat" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Articles_de_qualitat"><span>Articles de qualitat</span></a></li> </ul> </div> </div> <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 vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Especial:Cerca" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Cerca a la Viquipèdia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Cerca</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Cerca a Viquipèdia" aria-label="Cerca a Viquipèdia" autocapitalize="sentences" title="Cerca a la Viquipèdia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Especial:Cerca"> </div> <button class="cdx-button cdx-search-input__end-button">Cerca</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Eines personals"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Aparença"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Aparença" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Aparença</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_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=Nombre+at%C3%B2mic" 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=Nombre+at%C3%B2mic" 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 id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Més opcions" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Eines personals" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Eines personals</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Menú d'usuari" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ca.wikipedia.org&uselang=ca"><span>Donatius</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Especial:Crea_compte&returnto=Nombre+at%C3%B2mic" title="Us animem a crear un compte i iniciar una sessió, encara que no és obligatori"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Crea un compte</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Especial:Registre_i_entrada&returnto=Nombre+at%C3%B2mic" title="Us animem a registrar-vos, però no és obligatori [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Inicia la sessió</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> 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> <button aria-controls="toc-Història-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 Història</span> </button> <ul id="toc-Història-sublist" class="vector-toc-list"> <li id="toc-Els_raigs_X" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Els_raigs_X"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Els raigs X</span> </div> </a> <ul id="toc-Els_raigs_X-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Experiment_de_Rutherford" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Experiment_de_Rutherford"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Experiment de Rutherford</span> </div> </a> <ul id="toc-Experiment_de_Rutherford-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Hipòtesi_de_Van_den_Broek" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Hipòtesi_de_Van_den_Broek"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Hipòtesi de Van den Broek</span> </div> </a> <ul id="toc-Hipòtesi_de_Van_den_Broek-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-El_nucli_atòmic" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#El_nucli_atòmic"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>El nucli atòmic</span> </div> </a> <ul id="toc-El_nucli_atòmic-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Confirmació" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Confirmació"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.5</span> <span>Confirmació</span> </div> </a> <ul id="toc-Confirmació-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Nombres_atòmics_dels_elements" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Nombres_atòmics_dels_elements"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Nombres atòmics dels elements</span> </div> </a> <ul id="toc-Nombres_atòmics_dels_elements-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">3</span> <span>Vegeu també</span> </div> </a> <ul id="toc-Vegeu_també-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">4</span> <span>Referències</span> </div> </a> <ul id="toc-Referències-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" > <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">Nombre atòmic</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 135 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-135" 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">135 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/Atoomgetal" title="Atoomgetal - afrikaans" lang="af" hreflang="af" data-title="Atoomgetal" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Ordnungszahl" title="Ordnungszahl - alemany suís" lang="gsw" hreflang="gsw" data-title="Ordnungszahl" data-language-autonym="Alemannisch" data-language-local-name="alemany suís" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Numero_atomico" title="Numero atomico - aragonès" lang="an" hreflang="an" data-title="Numero atomico" 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%AA%E0%A4%B0%E0%A4%AE%E0%A4%BE%E0%A4%A3%E0%A5%81_%E0%A4%B8%E0%A4%82%E0%A4%96%E0%A5%8D%E0%A4%AF%E0%A4%BE" title="परमाणु संख्या - angika" lang="anp" hreflang="anp" data-title="परमाणु संख्या" data-language-autonym="अंगिका" data-language-local-name="angika" class="interlanguage-link-target"><span>अंगिका</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B9%D8%AF%D8%AF_%D8%B0%D8%B1%D9%8A" title="عدد ذري - àrab" lang="ar" hreflang="ar" data-title="عدد ذري" 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%86%D9%85%D8%B1%D8%A9_%D8%AF%D8%B1%D9%8A%D8%A9" title="نمرة درية - Moroccan Arabic" lang="ary" hreflang="ary" data-title="نمرة درية" data-language-autonym="الدارجة" data-language-local-name="Moroccan Arabic" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/N%C3%BAmberu_at%C3%B3micu" title="Númberu atómicu - asturià" lang="ast" hreflang="ast" data-title="Númberu atómicu" data-language-autonym="Asturianu" data-language-local-name="asturià" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%A2%D8%AA%D9%88%D9%85_%D8%B3%D8%A7%DB%8C%DB%8C%E2%80%8C%D8%B3%DB%8C" title="آتوم سایی‌سی - South Azerbaijani" lang="azb" hreflang="azb" data-title="آتوم سایی‌سی" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-ban mw-list-item"><a href="https://ban.wikipedia.org/wiki/Wilangan_atom" title="Wilangan atom - balinès" lang="ban" hreflang="ban" data-title="Wilangan atom" 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-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Ordnungszoi" title="Ordnungszoi - bavarès" lang="bar" hreflang="bar" data-title="Ordnungszoi" data-language-autonym="Boarisch" data-language-local-name="bavarès" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%97%D0%B0%D1%80%D0%B0%D0%B4%D0%B0%D0%B2%D1%8B_%D0%BB%D1%96%D0%BA" title="Зарадавы лік - belarús" lang="be" hreflang="be" data-title="Зарадавы лік" data-language-autonym="Беларуская" data-language-local-name="belarús" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%90%D1%82%D0%BE%D0%BC%D0%B5%D0%BD_%D0%BD%D0%BE%D0%BC%D0%B5%D1%80" title="Атомен номер - búlgar" lang="bg" hreflang="bg" data-title="Атомен номер" data-language-autonym="Български" data-language-local-name="búlgar" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AA%E0%A6%BE%E0%A6%B0%E0%A6%AE%E0%A6%BE%E0%A6%A3%E0%A6%AC%E0%A6%BF%E0%A6%95_%E0%A6%B8%E0%A6%82%E0%A6%96%E0%A7%8D%E0%A6%AF%E0%A6%BE" title="পারমাণবিক সংখ্যা - bengalí" lang="bn" hreflang="bn" data-title="পারমাণবিক সংখ্যা" data-language-autonym="বাংলা" data-language-local-name="bengalí" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Niver_atomek" title="Niver atomek - bretó" lang="br" hreflang="br" data-title="Niver atomek" 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/Atomski_broj" title="Atomski broj - bosnià" lang="bs" hreflang="bs" data-title="Atomski broj" data-language-autonym="Bosanski" data-language-local-name="bosnià" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ce mw-list-item"><a href="https://ce.wikipedia.org/wiki/%D0%94%D1%83%D0%BB%D0%B0%D0%B4%D0%B0%D0%BB%D0%B0%D1%80%D0%B0%D0%BD_%D1%82%D0%B5%D1%80%D0%B0%D1%85%D1%8C" title="Дуладаларан терахь - txetxè" lang="ce" hreflang="ce" data-title="Дуладаларан терахь" data-language-autonym="Нохчийн" data-language-local-name="txetxè" class="interlanguage-link-target"><span>Нохчийн</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DA%AF%DB%95%D8%B1%D8%AF%DB%8C%D9%84%DB%95_%DA%98%D9%85%D8%A7%D8%B1%DB%95" title="گەردیلە ژمارە - kurd central" lang="ckb" hreflang="ckb" data-title="گەردیلە ژمارە" data-language-autonym="کوردی" data-language-local-name="kurd central" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Protonov%C3%A9_%C4%8D%C3%ADslo" title="Protonové číslo - txec" lang="cs" hreflang="cs" data-title="Protonové číslo" 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%90%D1%82%D0%BE%D0%BC%C4%83%D0%BD_%D0%BD%D0%BE%D0%BC%D0%B5%D1%80%C4%95" title="Атомăн номерĕ - txuvaix" lang="cv" hreflang="cv" data-title="Атомăн номерĕ" 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/Rhif_atomig" title="Rhif atomig - gal·lès" lang="cy" hreflang="cy" data-title="Rhif atomig" 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/Atomnummer" title="Atomnummer - danès" lang="da" hreflang="da" data-title="Atomnummer" 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/Ordnungszahl" title="Ordnungszahl - alemany" lang="de" hreflang="de" data-title="Ordnungszahl" data-language-autonym="Deutsch" data-language-local-name="alemany" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%91%CF%84%CE%BF%CE%BC%CE%B9%CE%BA%CF%8C%CF%82_%CE%B1%CF%81%CE%B9%CE%B8%CE%BC%CF%8C%CF%82" title="Ατομικός αριθμός - grec" lang="el" hreflang="el" data-title="Ατομικός αριθμός" data-language-autonym="Ελληνικά" data-language-local-name="grec" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Atomic_number" title="Atomic number - anglès" lang="en" hreflang="en" data-title="Atomic number" 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/Atomnumero" title="Atomnumero - esperanto" lang="eo" hreflang="eo" data-title="Atomnumero" 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/N%C3%BAmero_at%C3%B3mico" title="Número atómico - espanyol" lang="es" hreflang="es" data-title="Número atómico" 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/Aatomnumber" title="Aatomnumber - estonià" lang="et" hreflang="et" data-title="Aatomnumber" data-language-autonym="Eesti" data-language-local-name="estonià" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Atomo-zenbaki" title="Atomo-zenbaki - basc" lang="eu" hreflang="eu" data-title="Atomo-zenbaki" 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/%D8%B9%D8%AF%D8%AF_%D8%A7%D8%AA%D9%85%DB%8C" title="عدد اتمی - persa" lang="fa" hreflang="fa" data-title="عدد اتمی" 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/J%C3%A4rjestysluku_(kemia)" title="Järjestysluku (kemia) - finès" lang="fi" hreflang="fi" data-title="Järjestysluku (kemia)" data-language-autonym="Suomi" data-language-local-name="finès" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fiu-vro mw-list-item"><a href="https://fiu-vro.wikipedia.org/wiki/Aadomarv" title="Aadomarv - Võro" lang="vro" hreflang="vro" data-title="Aadomarv" data-language-autonym="Võro" data-language-local-name="Võro" class="interlanguage-link-target"><span>Võro</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Num%C3%A9ro_atomique" title="Numéro atomique - francès" lang="fr" hreflang="fr" data-title="Numéro atomique" 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/Atoomnumer" title="Atoomnumer - frisó septentrional" lang="frr" hreflang="frr" data-title="Atoomnumer" 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/Numar_atomic" title="Numar atomic - friülà" lang="fur" hreflang="fur" data-title="Numar atomic" data-language-autonym="Furlan" data-language-local-name="friülà" class="interlanguage-link-target"><span>Furlan</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Atoomn%C3%BBmer" title="Atoomnûmer - frisó occidental" lang="fy" hreflang="fy" data-title="Atoomnûmer" data-language-autonym="Frysk" data-language-local-name="frisó occidental" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Uimhir_adamhach" title="Uimhir adamhach - irlandès" lang="ga" hreflang="ga" data-title="Uimhir adamhach" data-language-autonym="Gaeilge" data-language-local-name="irlandès" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gan mw-list-item"><a href="https://gan.wikipedia.org/wiki/%E5%8E%9F%E5%AD%90%E5%BA%8F%E6%95%B8" title="原子序數 - xinès gan" lang="gan" hreflang="gan" data-title="原子序數" data-language-autonym="贛語" data-language-local-name="xinès gan" class="interlanguage-link-target"><span>贛語</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/N%C3%BAmero_at%C3%B3mico" title="Número atómico - gallec" lang="gl" hreflang="gl" data-title="Número atómico" 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%AA%E0%AA%B0%E0%AA%AE%E0%AA%BE%E0%AA%A3%E0%AB%81_%E0%AA%95%E0%AB%8D%E0%AA%B0%E0%AA%AE%E0%AA%BE%E0%AA%82%E0%AA%95" title="પરમાણુ ક્રમાંક - gujarati" lang="gu" hreflang="gu" data-title="પરમાણુ ક્રમાંક" 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/Earroo_breneenagh" title="Earroo breneenagh - manx" lang="gv" hreflang="gv" data-title="Earroo breneenagh" data-language-autonym="Gaelg" data-language-local-name="manx" class="interlanguage-link-target"><span>Gaelg</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%A1%D7%A4%D7%A8_%D7%90%D7%98%D7%95%D7%9E%D7%99" title="מספר אטומי - hebreu" lang="he" hreflang="he" data-title="מספר אטומי" 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%AA%E0%A4%B0%E0%A4%AE%E0%A4%BE%E0%A4%A3%E0%A5%81_%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A4%BE%E0%A4%82%E0%A4%95" title="परमाणु क्रमांक - hindi" lang="hi" hreflang="hi" data-title="परमाणु क्रमांक" 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/Atomic_number" title="Atomic number - hindi de Fiji" lang="hif" hreflang="hif" data-title="Atomic number" 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/Atomski_broj" title="Atomski broj - croat" lang="hr" hreflang="hr" data-title="Atomski broj" data-language-autonym="Hrvatski" data-language-local-name="croat" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Nonm_atomik" title="Nonm atomik - crioll d’Haití" lang="ht" hreflang="ht" data-title="Nonm atomik" 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/Rendsz%C3%A1m_(k%C3%A9mia)" title="Rendszám (kémia) - hongarès" lang="hu" hreflang="hu" data-title="Rendszám (kémia)" 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/%D4%B1%D5%BF%D5%B8%D5%B4%D5%A1%D5%AF%D5%A1%D5%B6_%D5%B0%D5%A1%D5%B4%D5%A1%D6%80" title="Ատոմական համար - armeni" lang="hy" hreflang="hy" data-title="Ատոմական համար" 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/Numero_atomic" title="Numero atomic - interlingua" lang="ia" hreflang="ia" data-title="Numero atomic" 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/Nomor_atom" title="Nomor atom - indonesi" lang="id" hreflang="id" data-title="Nomor atom" 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-ilo mw-list-item"><a href="https://ilo.wikipedia.org/wiki/Atomiko_a_numero" title="Atomiko a numero - ilocano" lang="ilo" hreflang="ilo" data-title="Atomiko a numero" data-language-autonym="Ilokano" data-language-local-name="ilocano" class="interlanguage-link-target"><span>Ilokano</span></a></li><li class="interlanguage-link interwiki-inh mw-list-item"><a href="https://inh.wikipedia.org/wiki/%D0%97%D0%B8%D1%80%D1%85%D0%B0%D1%82%D0%B0_%D0%BD%D0%BE%D0%BC%D0%B5%D1%80" title="Зирхата номер - ingúix" lang="inh" hreflang="inh" data-title="Зирхата номер" data-language-autonym="ГӀалгӀай" data-language-local-name="ingúix" class="interlanguage-link-target"><span>ГӀалгӀай</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Atomala_nombro" title="Atomala nombro - ido" lang="io" hreflang="io" data-title="Atomala nombro" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/S%C3%A6tistala" title="Sætistala - islandès" lang="is" hreflang="is" data-title="Sætistala" 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/Numero_atomico" title="Numero atomico - italià" lang="it" hreflang="it" data-title="Numero atomico" 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/%E5%8E%9F%E5%AD%90%E7%95%AA%E5%8F%B7" title="原子番号 - japonès" lang="ja" hreflang="ja" data-title="原子番号" 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-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Nomer_atom" title="Nomer atom - javanès" lang="jv" hreflang="jv" data-title="Nomer atom" 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%90%E1%83%A2%E1%83%9D%E1%83%9B%E1%83%A3%E1%83%A0%E1%83%98_%E1%83%9C%E1%83%9D%E1%83%9B%E1%83%94%E1%83%A0%E1%83%98" title="ატომური ნომერი - georgià" lang="ka" hreflang="ka" data-title="ატომური ნომერი" data-language-autonym="ქართული" data-language-local-name="georgià" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/U%E1%B9%AD%E1%B9%ADun_abelkim" title="Uṭṭun abelkim - cabilenc" lang="kab" hreflang="kab" data-title="Uṭṭun abelkim" data-language-autonym="Taqbaylit" data-language-local-name="cabilenc" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%90%D1%82%D0%BE%D0%BC%D0%B4%D1%8B%D2%9B_%D0%BD%D3%A9%D0%BC%D1%96%D1%80" title="Атомдық нөмір - kazakh" lang="kk" hreflang="kk" data-title="Атомдық нөмір" 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%AA%E0%B2%B0%E0%B2%AE%E0%B2%BE%E0%B2%A3%E0%B3%81_%E0%B2%B8%E0%B2%82%E0%B2%96%E0%B3%8D%E0%B2%AF%E0%B3%86" title="ಪರಮಾಣು ಸಂಖ್ಯೆ - kannada" lang="kn" hreflang="kn" data-title="ಪರಮಾಣು ಸಂಖ್ಯೆ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9B%90%EC%9E%90_%EB%B2%88%ED%98%B8" title="원자 번호 - coreà" lang="ko" hreflang="ko" data-title="원자 번호" 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/Hejmara_atom%C3%AE" title="Hejmara atomî - kurd" lang="ku" hreflang="ku" data-title="Hejmara atomî" data-language-autonym="Kurdî" data-language-local-name="kurd" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Niver_atomek" title="Niver atomek - còrnic" lang="kw" hreflang="kw" data-title="Niver atomek" 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%90%D1%82%D0%BE%D0%BC%D0%B4%D1%83%D0%BA_%D0%BD%D0%BE%D0%BC%D0%B5%D1%80" title="Атомдук номер - kirguís" lang="ky" hreflang="ky" data-title="Атомдук номер" 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/Numerus_atomicus" title="Numerus atomicus - llatí" lang="la" hreflang="la" data-title="Numerus atomicus" 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/Uerdnungszuel" title="Uerdnungszuel - luxemburguès" lang="lb" hreflang="lb" data-title="Uerdnungszuel" data-language-autonym="Lëtzebuergesch" data-language-local-name="luxemburguès" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Atoomn%C3%B3mmer" title="Atoomnómmer - limburguès" lang="li" hreflang="li" data-title="Atoomnómmer" 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/Nummero_atommico" title="Nummero atommico - lígur" lang="lij" hreflang="lij" data-title="Nummero atommico" data-language-autonym="Ligure" data-language-local-name="lígur" class="interlanguage-link-target"><span>Ligure</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/N%C3%BCmer_atomich" title="Nümer atomich - llombard" lang="lmo" hreflang="lmo" data-title="Nümer atomich" data-language-autonym="Lombard" data-language-local-name="llombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Atomo_numeris" title="Atomo numeris - lituà" lang="lt" hreflang="lt" data-title="Atomo numeris" 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/Atomskaitlis" title="Atomskaitlis - letó" lang="lv" hreflang="lv" data-title="Atomskaitlis" data-language-autonym="Latviešu" data-language-local-name="letó" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%90%D1%82%D0%BE%D0%BC%D1%81%D0%BA%D0%B8_%D0%B1%D1%80%D0%BE%D1%98" title="Атомски број - macedoni" lang="mk" hreflang="mk" data-title="Атомски број" 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%85%E0%B4%A3%E0%B5%81%E0%B4%B8%E0%B4%82%E0%B4%96%E0%B5%8D%E0%B4%AF" title="അണുസംഖ്യ - malaiàlam" lang="ml" hreflang="ml" data-title="അണുസംഖ്യ" 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%90%D1%82%D0%BE%D0%BC%D1%8B%D0%BD_%D0%B4%D1%83%D0%B3%D0%B0%D0%B0%D1%80" title="Атомын дугаар - mongol" lang="mn" hreflang="mn" data-title="Атомын дугаар" 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%85%E0%A4%A3%E0%A5%81%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A4%BE%E0%A4%82%E0%A4%95" title="अणुक्रमांक - marathi" lang="mr" hreflang="mr" data-title="अणुक्रमांक" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Nombor_atom" title="Nombor atom - malai" lang="ms" hreflang="ms" data-title="Nombor atom" 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%A1%E1%80%80%E1%80%BA%E1%80%90%E1%80%99%E1%80%BA_%E1%80%A1%E1%80%99%E1%80%BE%E1%80%90%E1%80%BA%E1%80%85%E1%80%89%E1%80%BA" title="အက်တမ် အမှတ်စဉ် - birmà" lang="my" hreflang="my" data-title="အက်တမ် အမှတ်စဉ်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmà" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Atomtall" title="Atomtall - baix alemany" lang="nds" hreflang="nds" data-title="Atomtall" data-language-autonym="Plattdüütsch" data-language-local-name="baix alemany" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%AA%E0%A4%B0%E0%A4%AE%E0%A4%BE%E0%A4%A3%E0%A5%81_%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A4%BE%E0%A4%99%E0%A5%8D%E0%A4%95" title="परमाणु क्रमाङ्क - nepalès" lang="ne" hreflang="ne" data-title="परमाणु क्रमाङ्क" data-language-autonym="नेपाली" data-language-local-name="nepalès" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Atoomnummer" title="Atoomnummer - neerlandès" lang="nl" hreflang="nl" data-title="Atoomnummer" 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/Atomnummer" title="Atomnummer - noruec nynorsk" lang="nn" hreflang="nn" data-title="Atomnummer" 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/Atomnummer" title="Atomnummer - noruec bokmål" lang="nb" hreflang="nb" data-title="Atomnummer" 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-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Num%C3%A8ro_atomic" title="Numèro atomic - occità" lang="oc" hreflang="oc" data-title="Numèro atomic" data-language-autonym="Occitan" data-language-local-name="occità" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Lakkoofsa_Atoomaawaa" title="Lakkoofsa Atoomaawaa - oromo" lang="om" hreflang="om" data-title="Lakkoofsa Atoomaawaa" data-language-autonym="Oromoo" data-language-local-name="oromo" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%AA%E0%AC%B0%E0%AC%AE%E0%AC%BE%E0%AC%A3%E0%AD%81_%E0%AC%95%E0%AD%8D%E0%AC%B0%E0%AC%AE%E0%AC%BE%E0%AC%99%E0%AD%8D%E0%AC%95" title="ପରମାଣୁ କ୍ରମାଙ୍କ - oriya" lang="or" hreflang="or" data-title="ପରମାଣୁ କ୍ରମାଙ୍କ" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="oriya" class="interlanguage-link-target"><span>ଓଡ଼ିଆ</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AA%E0%A8%B0%E0%A8%AE%E0%A8%BE%E0%A8%A3%E0%A9%82_%E0%A8%B8%E0%A9%B0%E0%A8%96%E0%A8%BF%E0%A8%86" title="ਪਰਮਾਣੂ ਸੰਖਿਆ - panjabi" lang="pa" hreflang="pa" data-title="ਪਰਮਾਣੂ ਸੰਖਿਆ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="panjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Liczba_atomowa" title="Liczba atomowa - polonès" lang="pl" hreflang="pl" data-title="Liczba atomowa" data-language-autonym="Polski" data-language-local-name="polonès" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%A7%DB%8C%D9%B9%D9%85%DB%8C_%D9%86%D9%85%D8%A8%D8%B1" title="ایٹمی نمبر - Western Punjabi" lang="pnb" hreflang="pnb" data-title="ایٹمی نمبر" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D8%A7%D9%BC%D9%88%D9%85%D9%8A_%D8%B9%D8%AF%D8%AF" title="اټومي عدد - paixtu" lang="ps" hreflang="ps" data-title="اټومي عدد" 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/N%C3%BAmero_at%C3%B3mico" title="Número atómico - portuguès" lang="pt" hreflang="pt" data-title="Número atómico" 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/I%C3%B1uku_%C3%B1iqi" title="Iñuku ñiqi - quítxua" lang="qu" hreflang="qu" data-title="Iñuku ñiqi" 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/Num%C4%83r_atomic" title="Număr atomic - romanès" lang="ro" hreflang="ro" data-title="Număr atomic" data-language-autonym="Română" data-language-local-name="romanès" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%97%D0%B0%D1%80%D1%8F%D0%B4%D0%BE%D0%B2%D0%BE%D0%B5_%D1%87%D0%B8%D1%81%D0%BB%D0%BE" title="Зарядовое число - rus" lang="ru" hreflang="ru" data-title="Зарядовое число" data-language-autonym="Русский" data-language-local-name="rus" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%9F%D1%80%D0%BE%D1%82%D0%BE%D0%BD%D0%BE%D0%B2%D0%B5_%D1%87%D1%96%D1%81%D0%BB%D0%BE" title="Протонове чісло - Rusyn" lang="rue" hreflang="rue" data-title="Протонове чісло" data-language-autonym="Русиньскый" data-language-local-name="Rusyn" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sa mw-list-item"><a href="https://sa.wikipedia.org/wiki/%E0%A4%AA%E0%A4%B0%E0%A4%AE%E0%A4%BE%E0%A4%A3%E0%A5%81%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A4%BE%E0%A4%99%E0%A5%8D%E0%A4%95%E0%A4%83" title="परमाणुक्रमाङ्कः - sànscrit" lang="sa" hreflang="sa" data-title="परमाणुक्रमाङ्कः" data-language-autonym="संस्कृतम्" data-language-local-name="sànscrit" class="interlanguage-link-target"><span>संस्कृतम्</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/%D0%AD%D0%BB%D1%8D%D0%BC%D0%B8%D1%8D%D0%BD_%D0%B0%D1%82%D0%BE%D0%BC%D1%83%D0%BD_%D0%BD%D2%AF%D3%A9%D0%BC%D1%8D%D1%80%D1%8D" title="Элэмиэн атомун нүөмэрэ - iacut" lang="sah" hreflang="sah" data-title="Элэмиэн атомун нүөмэрэ" data-language-autonym="Саха тыла" data-language-local-name="iacut" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/N%C3%B9mmuru_at%C3%B2micu" title="Nùmmuru atòmicu - sicilià" lang="scn" hreflang="scn" data-title="Nùmmuru atòmicu" 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/Atomic_nummer" title="Atomic nummer - escocès" lang="sco" hreflang="sco" data-title="Atomic nummer" data-language-autonym="Scots" data-language-local-name="escocès" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%A7%D9%8A%D9%BD%D9%85%D9%8A_%D9%86%D9%85%D8%A8%D8%B1" title="ايٽمي نمبر - sindi" lang="sd" hreflang="sd" data-title="ايٽمي نمبر" data-language-autonym="سنڌي" data-language-local-name="sindi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Atomski_broj" title="Atomski broj - serbocroat" lang="sh" hreflang="sh" data-title="Atomski broj" 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-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%B4%E0%B6%BB%E0%B6%B8%E0%B7%8F%E0%B6%AB%E0%B7%94%E0%B6%9A_%E0%B6%9A%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B6%B8%E0%B7%8F%E0%B6%82%E0%B6%9A%E0%B6%BA" title="පරමාණුක ක්‍රමාංකය - singalès" lang="si" hreflang="si" data-title="පරමාණුක ක්‍රමාංකය" data-language-autonym="සිංහල" data-language-local-name="singalès" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Atomic_number" title="Atomic number - Simple English" lang="en-simple" hreflang="en-simple" data-title="Atomic number" 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/Prot%C3%B3nov%C3%A9_%C4%8D%C3%ADslo" title="Protónové číslo - eslovac" lang="sk" hreflang="sk" data-title="Protónové číslo" 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/Vrstno_%C5%A1tevilo" title="Vrstno število - eslovè" lang="sl" hreflang="sl" data-title="Vrstno število" data-language-autonym="Slovenščina" data-language-local-name="eslovè" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-smn mw-list-item"><a href="https://smn.wikipedia.org/wiki/Oornigloho_(kemia)" title="Oornigloho (kemia) - sami d’Inari" lang="smn" hreflang="smn" data-title="Oornigloho (kemia)" data-language-autonym="Anarâškielâ" data-language-local-name="sami d’Inari" class="interlanguage-link-target"><span>Anarâškielâ</span></a></li><li class="interlanguage-link interwiki-sn badge-Q70893996 mw-list-item" title=""><a href="https://sn.wikipedia.org/wiki/Atomic_number" title="Atomic number - shona" lang="sn" hreflang="sn" data-title="Atomic number" data-language-autonym="ChiShona" data-language-local-name="shona" class="interlanguage-link-target"><span>ChiShona</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Tiro_atam" title="Tiro atam - somali" lang="so" hreflang="so" data-title="Tiro atam" 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/Numri_atomik" title="Numri atomik - albanès" lang="sq" hreflang="sq" data-title="Numri atomik" 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%90%D1%82%D0%BE%D0%BC%D1%81%D0%BA%D0%B8_%D0%B1%D1%80%D0%BE%D1%98" title="Атомски број - serbi" lang="sr" hreflang="sr" data-title="Атомски број" 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/Atomtaal" title="Atomtaal - Saterland Frisian" lang="stq" hreflang="stq" data-title="Atomtaal" 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/Nomer_atom" title="Nomer atom - sondanès" lang="su" hreflang="su" data-title="Nomer atom" 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/Atomnummer" title="Atomnummer - suec" lang="sv" hreflang="sv" data-title="Atomnummer" 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/Namba_atomia" title="Namba atomia - suahili" lang="sw" hreflang="sw" data-title="Namba atomia" 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%85%E0%AE%A3%E0%AF%81_%E0%AE%8E%E0%AE%A3%E0%AF%8D" title="அணு எண் - tàmil" lang="ta" hreflang="ta" data-title="அணு எண்" 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%AA%E0%B0%B0%E0%B0%AE%E0%B0%BE%E0%B0%A3%E0%B1%81_%E0%B0%B8%E0%B0%82%E0%B0%96%E0%B1%8D%E0%B0%AF" title="పరమాణు సంఖ్య - telugu" lang="te" hreflang="te" data-title="పరమాణు సంఖ్య" 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%A0%D0%B0%D2%9B%D0%B0%D0%BC%D0%B8_%D0%B0%D1%82%D0%BE%D0%BC%D3%A3" title="Рақами атомӣ - tadjik" lang="tg" hreflang="tg" data-title="Рақами атомӣ" 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%80%E0%B8%A5%E0%B8%82%E0%B8%AD%E0%B8%B0%E0%B8%95%E0%B8%AD%E0%B8%A1" title="เลขอะตอม - tai" lang="th" hreflang="th" data-title="เลขอะตอม" data-language-autonym="ไทย" data-language-local-name="tai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Atomikong_bilang" title="Atomikong bilang - tagal" lang="tl" hreflang="tl" data-title="Atomikong bilang" 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/Atom_numaras%C4%B1" title="Atom numarası - turc" lang="tr" hreflang="tr" data-title="Atom numarası" data-language-autonym="Türkçe" data-language-local-name="turc" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%90%D1%82%D0%BE%D0%BC%D0%BD%D0%B8%D0%B9_%D0%BD%D0%BE%D0%BC%D0%B5%D1%80" title="Атомний номер - ucraïnès" lang="uk" hreflang="uk" data-title="Атомний номер" 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/%D8%AC%D9%88%DB%81%D8%B1%DB%8C_%D8%B9%D8%AF%D8%AF" title="جوہری عدد - urdú" lang="ur" hreflang="ur" data-title="جوہری عدد" 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/Atom_raqami" title="Atom raqami - uzbek" lang="uz" hreflang="uz" data-title="Atom raqami" 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-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/N%C3%B9maro_at%C3%B2mego" title="Nùmaro atòmego - vènet" lang="vec" hreflang="vec" data-title="Nùmaro atòmego" data-language-autonym="Vèneto" data-language-local-name="vènet" class="interlanguage-link-target"><span>Vèneto</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/S%E1%BB%91_nguy%C3%AAn_t%E1%BB%AD" title="Số nguyên tử - vietnamita" lang="vi" hreflang="vi" data-title="Số nguyên tử" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-vls mw-list-item"><a href="https://vls.wikipedia.org/wiki/Atoomnummer" title="Atoomnummer - flamenc occidental" lang="vls" hreflang="vls" data-title="Atoomnummer" data-language-autonym="West-Vlams" data-language-local-name="flamenc occidental" class="interlanguage-link-target"><span>West-Vlams</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Ihap_atonomiko" title="Ihap atonomiko - waray" lang="war" hreflang="war" data-title="Ihap atonomiko" 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/%E5%8E%9F%E5%AD%90%E5%BA%8F%E6%95%B0" title="原子序数 - xinès wu" lang="wuu" hreflang="wuu" data-title="原子序数" 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-xh mw-list-item"><a href="https://xh.wikipedia.org/wiki/Inombolo_ye-atom" title="Inombolo ye-atom - xosa" lang="xh" hreflang="xh" data-title="Inombolo ye-atom" data-language-autonym="IsiXhosa" data-language-local-name="xosa" class="interlanguage-link-target"><span>IsiXhosa</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%90%D7%98%D7%90%D7%9D_%D7%A0%D7%95%D7%9E%D7%A2%D7%A8" title="אטאם נומער - ídix" lang="yi" hreflang="yi" data-title="אטאם נומער" 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/N%E1%BB%8D%CC%81mb%C3%A0_%C3%A1t%E1%BB%8D%CC%80m%C3%B9" title="Nọ́mbà átọ̀mù - ioruba" lang="yo" hreflang="yo" data-title="Nọ́mbà átọ̀mù" 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/%E5%8E%9F%E5%AD%90%E5%BA%8F%E6%95%B0" title="原子序数 - xinès" lang="zh" hreflang="zh" data-title="原子序数" 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/%E5%8E%9F%E5%AD%90%E5%BA%8F" title="原子序 - xinès clàssic" lang="lzh" hreflang="lzh" data-title="原子序" 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/Go%C3%A2n-ch%C3%BA-hoan" title="Goân-chú-hoan - xinès min del sud" lang="nan" hreflang="nan" data-title="Goân-chú-hoan" 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/%E5%8E%9F%E5%AD%90%E5%BA%8F%E6%95%B8" title="原子序數 - cantonès" lang="yue" hreflang="yue" data-title="原子序數" 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/Inani_lobuchwe" title="Inani lobuchwe - zulu" lang="zu" hreflang="zu" data-title="Inani lobuchwe" 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/Q23809#sitelinks-wikipedia" title="Modifica 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 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mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q23809" 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" 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typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Element_identity.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/db/Element_identity.png/220px-Element_identity.png" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/db/Element_identity.png/330px-Element_identity.png 1.5x, //upload.wikimedia.org/wikipedia/commons/d/db/Element_identity.png 2x" data-file-width="400" data-file-height="400" /></a><figcaption>Z - Nombre atòmic</figcaption></figure> <p>El <b>nombre atòmic</b>, representat per <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 Z}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>Z</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle Z}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1cc6b75e09a8aa3f04d8584b11db534f88fb56bd" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.68ex; height:2.176ex;" alt="{\displaystyle Z}"></span>, és el nombre de <a href="/wiki/Protons" class="mw-redirect" title="Protons">protons</a> presents en el <a href="/wiki/Nucli_at%C3%B2mic" title="Nucli atòmic">nucli atòmic</a>. </p><p>Els àtoms de diferents elements tenen diferents nombres d'electrons i protons. Un àtom en el seu estat natural és neutre i té un nombre igual d'<a href="/wiki/Electrons" class="mw-redirect" title="Electrons">electrons</a> i protons. Per exemple: un àtom de <a href="/wiki/Sodi" title="Sodi">sodi</a> (Na), que té un nombre atòmic d'11; té 11 electrons i 11 protons. Un àtom de <a href="/wiki/Magnesi" title="Magnesi">magnesi</a> (Mg), que té un nombre atòmic 12, té 12 electrons i 12 protons; i un àtom d'<a href="/wiki/Urani" title="Urani">urani</a> (U), que té un nombre atòmic de 92, té 92 electrons i 92 protons. </p><p>El símbol <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 Z}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>Z</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle Z}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1cc6b75e09a8aa3f04d8584b11db534f88fb56bd" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.68ex; height:2.176ex;" alt="{\displaystyle Z}"></span> prové de la paraula alemanya <i><b>Z</b>ahl</i>, que significa ‘nombre’, i s'utilitzava com abreviació en els texts en alemany. La referència més antiga cal cercar-la al llibre d'<a href="/wiki/Arnold_Sommerfeld" title="Arnold Sommerfeld">Arnold Sommerfeld</a> <i>Atombau und Spektrallinien</i> del 1919.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><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> El nombre atòmic es col·loca com a subíndex a l'esquerra del símbol de l'element corresponent. Per exemple, els àtoms de l'element hidrogen, que tenen 1 protó i Z = 1; s'expressarien com <sub>1</sub>H; els de l'heli tenen 2 protons i Z = 2, és a dir: ₂He. </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=Nombre_at%C3%B2mic&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" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Chas._G._Barkla_LCCN2014719364.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Chas._G._Barkla_LCCN2014719364.jpg/220px-Chas._G._Barkla_LCCN2014719364.jpg" decoding="async" width="220" height="297" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Chas._G._Barkla_LCCN2014719364.jpg/330px-Chas._G._Barkla_LCCN2014719364.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Chas._G._Barkla_LCCN2014719364.jpg/440px-Chas._G._Barkla_LCCN2014719364.jpg 2x" data-file-width="4179" data-file-height="5636" /></a><figcaption><a href="/wiki/Charles_Glover_Barkla" title="Charles Glover Barkla">Charles Glover Barkla</a>.</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Els_raigs_X">Els raigs X</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nombre_at%C3%B2mic&action=edit&section=2" title="Modifica la secció: Els raigs X"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div><p> A la darrera dècada del segle <span title="Nombre escrit en xifres romanes" style="font-variant:small-caps;">xix</span>, el físic alemany <a href="/wiki/Wilhelm_R%C3%B6ntgen" title="Wilhelm Röntgen">Wilhelm Röntgen</a> (1845-1923) descobrí una nova forma de radiació penetrant emesa des de <a href="/wiki/Tub_de_desc%C3%A0rrega" class="mw-redirect" title="Tub de descàrrega">tubs de descàrrega</a> quan els <a href="/wiki/Raigs_cat%C3%B2dics" title="Raigs catòdics">raigs catòdics</a> d'alta energia impactaven en un ànode metàl·lic. La naturalesa d'aquests misteriosos ‘<a href="/wiki/Radiaci%C3%B3_X" title="Radiació X">raigs X</a>’ restà matèria de debat intens al primer decenni del segle <span title="Nombre escrit en xifres romanes" style="font-variant:small-caps;">xx</span>. El físic anglès <a href="/wiki/Charles_Glover_Barkla" title="Charles Glover Barkla">Charles G. Barkla</a> (1877-1944) observà que es produïen ‘raigs X secundaris’ quan els raigs primaris xocaven contra un element; i que l'emissió secundària contenia un component ‘característic’ de l'element en el sentit que els raigs X de diferents elements tenien diferents capacitats de penetració a través de làmines metàl·liques primes. Barkla també descobrí que un mateix element podia emetre, de fet, dos tipus diferents de raigs X característics: uns més penetrants (durs) i uns menys penetrants (més suaus). Els físics alemanys <a href="/w/index.php?title=Walter_Friedrich&action=edit&redlink=1" class="new" title="Walter Friedrich (encara no existeix)">Walter Friedrich</a> (1883-1968) i <a href="/w/index.php?title=Paul_Knipping&action=edit&redlink=1" class="new" title="Paul Knipping (encara no existeix)">Paul Knipping</a> (1883-1935) veren que es formava un patró de taques quan els raigs X d'un <a href="/wiki/Tub_de_Crookes" title="Tub de Crookes">tub de Crookes</a> passaven a través d'un cristall fins a una placa fotogràfica, essent els primers experiments amb <a href="/wiki/Sulfat_de_coure(II)" title="Sulfat de coure(II)">sulfat de coure(II)</a> i <a href="/wiki/Sulfur_de_zinc" title="Sulfur de zinc">sulfur de zinc</a>. Després dels descobriments de Röntgen, hi havia hagut especulacions contínues sobre si els raigs X eren corpusculars o eren una forma de radiació electromagnètica ondulatòria d'alta energia. El físic alemany <a href="/wiki/Max_von_Laue" title="Max von Laue">Max von Laue</a> (1879-1960) proporcionà una explicació dels patrons de taques en termes d'efectes d'interferència d'ones electromagnètiques de longitud d'ona curta, fet que finalment el portà a rebre el <a href="/wiki/Premi_Nobel_de_F%C3%ADsica" title="Premi Nobel de Física">Premi Nobel de Física</a> el 1914.<sup id="cite_ref-:0_3-0" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></p><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Helium_atom_QMuniv.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/20/Helium_atom_QMuniv.svg/220px-Helium_atom_QMuniv.svg.png" decoding="async" width="220" height="191" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/20/Helium_atom_QMuniv.svg/330px-Helium_atom_QMuniv.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/20/Helium_atom_QMuniv.svg/440px-Helium_atom_QMuniv.svg.png 2x" data-file-width="570" data-file-height="495" /></a><figcaption>El nucli d'heli conté dos protons (en vermell) i dos neutrons (en blau), <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 Z}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>Z</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle Z}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1cc6b75e09a8aa3f04d8584b11db534f88fb56bd" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.68ex; height:2.176ex;" alt="{\displaystyle Z}"></span>= 2 perquè té dos protons</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Experiment_de_Rutherford">Experiment de Rutherford</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nombre_at%C3%B2mic&action=edit&section=3" title="Modifica la secció: Experiment de Rutherford"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>El físic alemany <a href="/wiki/Hans_Geiger" title="Hans Geiger">Hans Geiger</a> (1882-1945) i l'anglès <a href="/wiki/Ernest_Marsden" title="Ernest Marsden">Ernest Marsden</a> (1889-1970), que treballaven sota la direcció del físic neozelandès <a href="/wiki/Ernest_Rutherford" title="Ernest Rutherford">Ernest Rutherford</a> (1871-1937) a la <a href="/wiki/Universitat_de_Manchester" title="Universitat de Manchester">Universitat de Manchester</a>, demostraren que les <a href="/wiki/Part%C3%ADcula_%CE%B1" title="Partícula α">partícules α</a> d'alta energia podien ser dispersades a grans angles quan impactaven en làmines d'or ultra primes.<sup id="cite_ref-:1_4-0" class="reference"><a href="#cite_note-:1-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Rutherford dissenyà una teoria de dispersió que requeria que la potència de dispersió P fos proporcional al quadrat de la càrrega positiva Q que suposà concentrada al centre de l'àtom. Per tant, Geiger i Marsden realitzaren un segon conjunt d'experiments on mesuraren la retrodispersió de partícules α en una sèrie de làmines d'elements diferents, des de carboni fins a or. L'opinió consensuada a Manchester en aquell moment era que la càrrega positiva Q era la meitat de la massa atòmica A (Q = A/2), i en conseqüència, Geiger i Marsden analitzaren les seves dades de dispersió dividint la potència de dispersió per àtom P per A<sup>2</sup>, essent A<sup>2</sup> = Q<sup>2</sup>×4, esperant trobar una constant. Els valors de P/A<sup>2</sup> no foren constants i s'atribuí a errors experimentals, tot i que hi havia indicis que P/A<sup>2</sup> disminuïa amb l'augment de la massa atòmic.<sup id="cite_ref-:0_3-1" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Antonius_van_den_Broek_1903.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Antonius_van_den_Broek_1903.jpg/220px-Antonius_van_den_Broek_1903.jpg" decoding="async" width="220" height="341" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/1/1c/Antonius_van_den_Broek_1903.jpg 1.5x" data-file-width="289" data-file-height="448" /></a><figcaption><a href="/w/index.php?title=Antonius_Johannes_Van_den_Broek&action=edit&redlink=1" class="new" title="Antonius Johannes Van den Broek (encara no existeix)">Antonius J. Van den Broek</a> el 1903.</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Hipòtesi_de_Van_den_Broek"><span id="Hip.C3.B2tesi_de_Van_den_Broek"></span>Hipòtesi de Van den Broek</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nombre_at%C3%B2mic&action=edit&section=4" title="Modifica la secció: Hipòtesi de Van den Broek"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'holandès <a href="/w/index.php?title=Antonius_Johannes_van_den_Broek&action=edit&redlink=1" class="new" title="Antonius Johannes van den Broek (encara no existeix)">Antonius Johannes Van den Broek</a> (1879-1926), advocat de professió i físic aficionat que es mantenia al marge del corrent científic, el 1907 publicà que havia observat que el número d'ordre d'un <a href="/wiki/Element_qu%C3%ADmic" title="Element químic">element químic</a> a la <a href="/wiki/Taula_peri%C3%B2dica" title="Taula periòdica">taula periòdica</a> (actualment simbolitzat Z), on s'ordenaven els elements per ordre creixent de <a href="/wiki/Massa_at%C3%B2mica" title="Massa atòmica">massa atòmica</a> A, correspon aproximadament a la massa atòmica dividida per 2 (Z ≈ A/2).<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Van den Broek havia desenvolupat les seves pròpies idees sobre la millor manera d'organitzar la <a href="/wiki/Taula_peri%C3%B2dica" title="Taula periòdica">taula periòdica</a>. Els documents clau que introdueixen la idea del nombre atòmic se centraren en les dades de dispersió del Cu, Ag, Sn, Pt i Au publicades per Geiger i Marsden.<sup id="cite_ref-:1_4-1" class="reference"><a href="#cite_note-:1-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:0_3-2" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Les posicions a la taula periòdica dels elements més pesants (i en alguns casos les masses atòmics) estaven lluny de ser correctes, però reconeixent que la massa atòmica per a la majoria dels elements més pesants és poc més del doble del nombre ordinal Z, analitzà les dades de dispersió dividint la potència de dispersió per Z<sup>2</sup> × 5,4 (√5,4 = 2,32) i argumentà que això produïa molta menys dispersió que usar A<sup>2</sup>. Van den Broek exclogué les dades de dispersió de l'alumini de la seva anàlisi. L'alumini clarament representava un valor atípic important que no s'ajustava als seus arguments: una anàlisi estadística senzilla demostra que la <a href="/wiki/Desviaci%C3%B3_tipus" title="Desviació tipus">desviació tipus</a> de la constant és en realitat més gran quan Z substitueix A si les dades de dispersió per a l'alumini s'inclouen en l'anàlisi. Retrospectivament, hom s'adona que Van den Broek arribà a la resposta correcta per motius equivocats.<sup id="cite_ref-:0_3-3" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="El_nucli_atòmic"><span id="El_nucli_at.C3.B2mic"></span>El nucli atòmic</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nombre_at%C3%B2mic&action=edit&section=5" title="Modifica la secció: El nucli atòmic"><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:Moseley_step_ladder.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Moseley_step_ladder.jpg/220px-Moseley_step_ladder.jpg" decoding="async" width="220" height="282" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Moseley_step_ladder.jpg/330px-Moseley_step_ladder.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Moseley_step_ladder.jpg/440px-Moseley_step_ladder.jpg 2x" data-file-width="1363" data-file-height="1750" /></a><figcaption>Diagrama de fotografies dels espectres de raigs X dels elements Ca–Zn (excepte Sc) disposats en funció de la longitud d'ona.<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><sup id="cite_ref-:0_3-4" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></figcaption></figure> <p>Els experiments de Geiger i Marsden portà Rutherford a proposar el març de 1911<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> un model d'<a href="/wiki/Estructura_at%C3%B2mica" class="mw-redirect" title="Estructura atòmica">estructura atòmica</a> on la càrrega positiva estava concentrada en un petit «nucli», el qual era molt més petit que l'àtom. Això contrastava amb el model anterior de J.J. Thomson, presentat entre 1904 i 1907, on els electrons de càrrega negativa estaven incrustats dins d'un fons esponjós de càrrega positiva amb una grandària igual a la de l'àtom. Unes setmanes després de l'anunci de Rutherford, Van den Broek envià una carta a la revista <i><a href="/wiki/Nature" title="Nature">Nature</a></i><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> on exposà la <a href="/wiki/Hip%C3%B2tesi" title="Hipòtesi">hipòtesi</a> que la posició d'un element a la taula periòdica es corresponia amb la <a href="/wiki/C%C3%A0rrega_el%C3%A8ctrica" title="Càrrega elèctrica">càrrega elèctrica</a> del seu <a href="/wiki/Nucli_at%C3%B2mic" title="Nucli atòmic">nucli atòmic</a> en unitats de <a href="/wiki/C%C3%A0rrega_el%C3%A8ctrica_elemental" title="Càrrega elèctrica elemental">càrrega elemental</a> (Z = Q), i que la massa atòmica era propera al doble d'aquest nombre (A ≈ 2×Z). Però Rutherford no li donà suport, en part perquè provenia d'un advocat, no d'un científic professional. Davant l'oposició de Rutherford, Van den Broek renuncià a la relació amb la massa atòmica en una carta a <i>Nature</i> el 1913, però mantingué que el número de la posició a la taula periòdica es corresponia amb la càrrega nuclear en unitats de càrrega elemental (Z = Q).<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 mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Henry_Moseley_(1887-1915).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Henry_Moseley_%281887-1915%29.jpg/220px-Henry_Moseley_%281887-1915%29.jpg" decoding="async" width="220" height="169" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Henry_Moseley_%281887-1915%29.jpg/330px-Henry_Moseley_%281887-1915%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Henry_Moseley_%281887-1915%29.jpg/440px-Henry_Moseley_%281887-1915%29.jpg 2x" data-file-width="546" data-file-height="420" /></a><figcaption><a href="/wiki/Henry_Moseley" title="Henry Moseley">Henry Moseley</a>.</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Confirmació"><span id="Confirmaci.C3.B3"></span>Confirmació</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nombre_at%C3%B2mic&action=edit&section=6" title="Modifica la secció: Confirmació"><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:Moseley%27s_law_1914.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/50/Moseley%27s_law_1914.jpg/220px-Moseley%27s_law_1914.jpg" decoding="async" width="220" height="335" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/50/Moseley%27s_law_1914.jpg/330px-Moseley%27s_law_1914.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/50/Moseley%27s_law_1914.jpg/440px-Moseley%27s_law_1914.jpg 2x" data-file-width="548" data-file-height="834" /></a><figcaption>Gràfic del nombre ordinals dels elements a la taula periòdica, de l'alumini a l'or, en funció de l'arrel quadrada de la freqüència.<sup id="cite_ref-:3_10-0" class="reference"><a href="#cite_note-:3-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:0_3-5" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></figcaption></figure> <p>Poques setmanes després el químic anglès <a href="/wiki/Frederick_Soddy" title="Frederick Soddy">Frederik Sodyy</a>, (1877-1956) que havia treballat amb Rutherford, publicà una carta a la mateixa revista indicant que la hipòtesi de Van den Broek podia explicar les lleis de desplaçament radioactiu (lleis de Soddy-Fajans)<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> i Rutherford canvià d'opinió i acceptà la hipòtesi de Van den Broek.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p><p>El mateix 1913 el físic anglès <a href="/wiki/Henry_Moseley" title="Henry Moseley">Henry Moseley</a> (1887-1915) estudià l'espectre de <a href="/wiki/Radiaci%C3%B3_X" title="Radiació X">raigs X</a> dels elements, en concret les línies <i>K</i>α, i comprovà que hi havia una relació entre la <a href="/wiki/Longitud_d%27ona" title="Longitud d'ona">longitud d'ona</a> o la freqüència i el número que ocupava l'element en qüestió a la <a href="/wiki/Taula_peri%C3%B2dica" title="Taula periòdica">taula periòdica</a>. La <a href="/w/index.php?title=Llei_de_Moseley&action=edit&redlink=1" class="new" title="Llei de Moseley (encara no existeix)">llei de Moseley</a> diu que l'arrel quadrada de la freqüència <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 \nu }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ν</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \nu }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c15bbbb971240cf328aba572178f091684585468" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.232ex; height:1.676ex;" alt="{\displaystyle \nu }"></span> dels raigs X emesos pels elements és proporcional a la posició que ocupen els elements a la taula periòdica <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 Z}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>Z</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle Z}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1cc6b75e09a8aa3f04d8584b11db534f88fb56bd" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.68ex; height:2.176ex;" alt="{\displaystyle Z}"></span>: </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 {\sqrt {\nu }}\propto Z}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msqrt> <mi>ν</mi> </msqrt> </mrow> <mo>∝</mo> <mi>Z</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\sqrt {\nu }}\propto Z}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/75abafea15cb4cdda0b3ba03fbf3f80506f67591" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:7.947ex; height:3.009ex;" alt="{\displaystyle {\sqrt {\nu }}\propto Z}"></span> </p><p>Moseley deixà buits per elements encara no descoberts, però predits per <a href="/wiki/Dmitri_Mendel%C3%A9iev" title="Dmitri Mendeléiev">Dmitri I. Mendeléiev</a> (1834-1907) en la seva <a href="/wiki/Taula_peri%C3%B2dica" title="Taula periòdica">taula periòdica</a>, i mantingué l'ordre d'elements d'acord amb les seves propietats, com havia fet Mendeléiev, i no per estricte ordre de les seves masses atòmiques.<sup id="cite_ref-:0_3-6" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> D'aquesta manera confirmà la hipòtesi de Van den Broek i anomenà nombre atòmic al <a href="/wiki/Nombre_ordinal" title="Nombre ordinal">nombre ordinal</a> de cada element a la taula periòdica.<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><sup id="cite_ref-:3_10-1" class="reference"><a href="#cite_note-:3-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Nombres_atòmics_dels_elements"><span id="Nombres_at.C3.B2mics_dels_elements"></span>Nombres atòmics dels elements</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nombre_at%C3%B2mic&action=edit&section=7" title="Modifica la secció: Nombres atòmics dels elements"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Relació dels elements per ordre alfabètic amb els seus nombres atòmics: </p> <table class="wikitable"> <tbody><tr> <th>Element </th> <th>Z </th> <th>Element </th> <th>Z </th> <th>Element </th> <th>Z </th> <th>Element </th> <th>Z </th> <th>Element </th> <th>Z </th> <th>Element </th> <th>Z </th></tr> <tr> <td><a href="/wiki/Actini" title="Actini">Actini</a> </td> <td><center>89</center> </td> <td><a href="/wiki/Cesi" title="Cesi">Cesi</a> </td> <td><center>55</center> </td> <td><a href="/wiki/F%C3%B2sfor" title="Fòsfor">Fòsfor</a> </td> <td><center>15</center> </td> <td><a href="/wiki/Livermori" title="Livermori">Livermori</a> </td> <td><center>116</center> </td> <td><a href="/wiki/Plat%C3%AD" title="Platí">Platí</a> </td> <td><center>78</center> </td> <td><a href="/wiki/Sodi" title="Sodi">Sodi</a> </td> <td><center>11</center> </td></tr> <tr> <td><a href="/wiki/Alumini" title="Alumini">Alumini</a> </td> <td><center>13</center> </td> <td><a href="/wiki/Zirconi" title="Zirconi">Zirconi</a> </td> <td><center>40</center> </td> <td><a href="/wiki/Franci" title="Franci">Franci</a> </td> <td><center>87</center> </td> <td><a href="/wiki/Luteci" title="Luteci">Luteci</a> </td> <td><center>71</center> </td> <td><a href="/wiki/Plom" title="Plom">Plom</a> </td> <td><center>82</center> </td> <td><a href="/wiki/Tali" class="mw-redirect" title="Tali">Tali</a> </td> <td><center>81</center> </td></tr> <tr> <td><a href="/wiki/Americi" title="Americi">Americi</a> </td> <td><center>95</center> </td> <td><a href="/wiki/Clor" title="Clor">Clor</a> </td> <td><center>17</center> </td> <td><a href="/wiki/Gadolini" title="Gadolini">Gadolini</a> </td> <td><center>64</center> </td> <td><a href="/wiki/Magnesi" title="Magnesi">Magnesi</a> </td> <td><center>12</center> </td> <td><a href="/wiki/Plutoni" title="Plutoni">Plutoni</a> </td> <td><center>94</center> </td> <td><a href="/wiki/T%C3%A0ntal" title="Tàntal">Tàntal</a> </td> <td><center>73</center> </td></tr> <tr> <td><a href="/wiki/Antimoni" title="Antimoni">Antimoni</a> </td> <td><center>51</center> </td> <td><a href="/wiki/Cobalt" title="Cobalt">Cobalt</a> </td> <td><center>27</center> </td> <td><a href="/wiki/Gal%C2%B7li" title="Gal·li">Gal·li</a> </td> <td><center>31</center> </td> <td><a href="/wiki/Mangan%C3%A8s" title="Manganès">Manganès</a> </td> <td><center>25</center> </td> <td><a href="/wiki/Poloni" title="Poloni">Poloni</a> </td> <td><center>84</center> </td> <td><a href="/wiki/Tecneci" title="Tecneci">Tecneci</a> </td> <td><center>43</center> </td></tr> <tr> <td><a href="/wiki/Arg%C3%B3" title="Argó">Argó</a> </td> <td><center>18</center> </td> <td><a href="/wiki/Coure" title="Coure">Coure</a> </td> <td><center>29</center> </td> <td><a href="/wiki/Germani" title="Germani">Germani</a> </td> <td><center>32</center> </td> <td><a href="/wiki/Meitneri" title="Meitneri">Meitneri</a> </td> <td><center>109</center> </td> <td><a href="/wiki/Potassi" title="Potassi">Potassi</a> </td> <td><center>19</center> </td> <td><a href="/wiki/Tel%C2%B7luri" title="Tel·luri">Tel·luri</a> </td> <td><center>52</center> </td></tr> <tr> <td><a href="/wiki/Ars%C3%A8nic" title="Arsènic">Arsènic</a> </td> <td><center>33</center> </td> <td><a href="/wiki/Cop%C3%A8rnic" class="mw-redirect" title="Copèrnic">Copèrnic</a> </td> <td><center>112</center> </td> <td><a href="/wiki/Hafni" title="Hafni">Hafni</a> </td> <td><center>72</center> </td> <td><a href="/wiki/Mendelevi" title="Mendelevi">Mendelevi</a> </td> <td><center>101</center> </td> <td><a href="/wiki/Praseodimi" title="Praseodimi">Praseodimi</a> </td> <td><center>59</center> </td> <td><a href="/wiki/Terbi" title="Terbi">Terbi</a> </td> <td><center>65</center> </td></tr> <tr> <td><a href="/wiki/%C3%80stat" title="Àstat">Àstat</a> </td> <td><center>85</center> </td> <td><a href="/wiki/Crom" title="Crom">Crom</a> </td> <td><center>24</center> </td> <td><a href="/wiki/Hassi" title="Hassi">Hassi</a> </td> <td><center>108</center> </td> <td><a href="/wiki/Mercuri_(element)" title="Mercuri (element)">Mercuri</a> </td> <td><center>80</center> </td> <td><a href="/wiki/Prometi" title="Prometi">Prometi</a> </td> <td><center>61</center> </td> <td><a href="/wiki/Titani" title="Titani">Titani</a> </td> <td><center>22</center> </td></tr> <tr> <td><a href="/wiki/Sofre" title="Sofre">Sofre</a> </td> <td><center>16</center> </td> <td><a href="/wiki/Curi" title="Curi">Curi</a> </td> <td><center>96</center> </td> <td><a href="/wiki/Heli" title="Heli">Heli</a> </td> <td><center>2</center> </td> <td><a href="/wiki/Molibd%C3%A8" title="Molibdè">Molibdè</a> </td> <td><center>42</center> </td> <td><a href="/wiki/Protoactini" title="Protoactini">Protoactini</a> </td> <td><center>91</center> </td> <td><a href="/wiki/Tori" title="Tori">Tori</a> </td> <td><center>90</center> </td></tr> <tr> <td><a href="/wiki/Bari_(element)" title="Bari (element)">Bari</a> </td> <td><center>56</center> </td> <td><a href="/wiki/Darmstadti" title="Darmstadti">Darmstadti</a> </td> <td><center>110</center> </td> <td><a href="/wiki/Hidrogen" title="Hidrogen">Hidrogen</a> </td> <td><center>1</center> </td> <td><a href="/wiki/Neodimi" title="Neodimi">Neodimi</a> </td> <td><center>60</center> </td> <td><a href="/wiki/Radi_(element)" title="Radi (element)">Radi</a> </td> <td><center>88</center> </td> <td><a href="/wiki/Tuli" title="Tuli">Tuli</a> </td> <td><center>69</center> </td></tr> <tr> <td><a href="/wiki/Beril%C2%B7li" title="Beril·li">Beril·li</a> </td> <td><center>4</center> </td> <td><a href="/wiki/Disprosi" title="Disprosi">Disprosi</a> </td> <td><center>66</center> </td> <td><a href="/wiki/Ferro" title="Ferro">Ferro</a> </td> <td><center>26</center> </td> <td><a href="/wiki/Ne%C3%B3" title="Neó">Neó</a> </td> <td><center>10</center> </td> <td><a href="/wiki/Rad%C3%B3" title="Radó">Radó</a> </td> <td><center>86</center> </td> <td><a href="/wiki/Oganess%C3%B3" title="Oganessó">Oganessó</a> </td> <td><center>118</center> </td></tr> <tr> <td><a href="/wiki/Berkeli" title="Berkeli">Berkeli</a> </td> <td><center>97</center> </td> <td><a href="/wiki/Dubni" title="Dubni">Dubni</a> </td> <td><center>105</center> </td> <td><a href="/wiki/Holmi" title="Holmi">Holmi</a> </td> <td><center>67</center> </td> <td><a href="/wiki/Neptuni" title="Neptuni">Neptuni</a> </td> <td><center>93</center> </td> <td><a href="/wiki/Reni" title="Reni">Reni</a> </td> <td><center>75</center> </td> <td><a href="/wiki/Moscovi" title="Moscovi">Moscovi</a> </td> <td><center>115</center> </td></tr> <tr> <td><a href="/wiki/Bismut" title="Bismut">Bismut</a> </td> <td><center>83</center> </td> <td><a href="/wiki/Einsteini" title="Einsteini">Einsteini</a> </td> <td><center>99</center> </td> <td><a href="/wiki/Indi_(element)" title="Indi (element)">Indi</a> </td> <td><center>49</center> </td> <td><a href="/wiki/Niobi" title="Niobi">Niobi</a> </td> <td><center>41</center> </td> <td><a href="/wiki/Rodi" title="Rodi">Rodi</a> </td> <td><center>45</center> </td> <td><a href="/wiki/Tennes" title="Tennes">Tennes</a> </td> <td><center>117</center> </td></tr> <tr> <td><a href="/wiki/Bohri" title="Bohri">Bohri</a> </td> <td><center>107</center> </td> <td><a href="/wiki/Erbi" title="Erbi">Erbi</a> </td> <td><center>68</center> </td> <td><a href="/wiki/Iode" title="Iode">Iode</a> </td> <td><center>53</center> </td> <td><a href="/wiki/N%C3%ADquel" title="Níquel">Níquel</a> </td> <td><center>28</center> </td> <td><a href="/wiki/Roentgeni" title="Roentgeni">Roentgeni</a> </td> <td><center>111</center> </td> <td><a href="/wiki/Nihoni" title="Nihoni">Nihoni</a> </td> <td><center>113</center> </td></tr> <tr> <td><a href="/wiki/Bor" title="Bor">Bor</a> </td> <td><center>5</center> </td> <td><a href="/wiki/Escandi" title="Escandi">Escandi</a> </td> <td><center>21</center> </td> <td><a href="/wiki/Iridi" title="Iridi">Iridi</a> </td> <td><center>77</center> </td> <td><a href="/wiki/Nitrogen" title="Nitrogen">Nitrogen</a> </td> <td><center>7</center> </td> <td><a href="/wiki/Rubidi" title="Rubidi">Rubidi</a> </td> <td><center>37</center> </td> <td><a href="/wiki/Urani" title="Urani">Urani</a> </td> <td><center>92</center> </td></tr> <tr> <td><a href="/wiki/Brom" title="Brom">Brom</a> </td> <td><center>35</center> </td> <td><a href="/wiki/Estany_(element)" title="Estany (element)">Estany</a> </td> <td><center>50</center> </td> <td><a href="/wiki/Iterbi" title="Iterbi">Iterbi</a> </td> <td><center>70</center> </td> <td><a href="/wiki/Nobeli" title="Nobeli">Nobeli</a> </td> <td><center>102</center> </td> <td><a href="/wiki/Ruteni" title="Ruteni">Ruteni</a> </td> <td><center>44</center> </td> <td><a href="/wiki/Vanadi" title="Vanadi">Vanadi</a> </td> <td><center>23</center> </td></tr> <tr> <td><a href="/wiki/Cadmi" title="Cadmi">Cadmi</a> </td> <td><center>48</center> </td> <td><a href="/wiki/Estronci" title="Estronci">Estronci</a> </td> <td><center>38</center> </td> <td><a href="/wiki/Itri" title="Itri">Itri</a> </td> <td><center>39</center> </td> <td><a href="/wiki/Or" title="Or">Or</a> </td> <td><center>79</center> </td> <td><a href="/wiki/Rutherfordi" title="Rutherfordi">Rutherfordi</a> </td> <td><center>104</center> </td> <td><a href="/wiki/Wolframi" class="mw-redirect" title="Wolframi">Wolframi</a> </td> <td><center>74</center> </td></tr> <tr> <td><a href="/wiki/Calci" title="Calci">Calci</a> </td> <td><center>20</center> </td> <td><a href="/wiki/Europi" title="Europi">Europi</a> </td> <td><center>63</center> </td> <td><a href="/wiki/Kript%C3%B3" title="Kriptó">Kriptó</a> </td> <td><center>36</center> </td> <td><a href="/wiki/Osmi" title="Osmi">Osmi</a> </td> <td><center>76</center> </td> <td><a href="/wiki/Samari" title="Samari">Samari</a> </td> <td><center>62</center> </td> <td><a href="/wiki/Xen%C3%B3" title="Xenó">Xenó</a> </td> <td><center>54</center> </td></tr> <tr> <td><a href="/wiki/Californi" title="Californi">Californi</a> </td> <td><center>98</center> </td> <td><a href="/wiki/Fermi_(element)" title="Fermi (element)">Fermi</a> </td> <td><center>100</center> </td> <td><a href="/wiki/Lant%C3%A0" class="mw-redirect" title="Lantà">Lantà</a> </td> <td><center>57</center> </td> <td><a href="/wiki/Oxigen" title="Oxigen">Oxigen</a> </td> <td><center>8</center> </td> <td><a href="/wiki/Seaborgi" title="Seaborgi">Seaborgi</a> </td> <td><center>106</center> </td> <td><a href="/wiki/Zinc" title="Zinc">Zinc</a> </td> <td><center>30</center> </td></tr> <tr> <td><a href="/wiki/Carboni" title="Carboni">Carboni</a> </td> <td><center>6</center> </td> <td><a href="/wiki/Flerovi" title="Flerovi">Flerovi</a> </td> <td><center>114</center> </td> <td><a href="/wiki/Lawrenci" title="Lawrenci">Lawrenci</a> </td> <td><center>103</center> </td> <td><a href="/wiki/Pal%C2%B7ladi_(element)" title="Pal·ladi (element)">Pal·ladi</a> </td> <td><center>46</center> </td> <td><a href="/wiki/Seleni" title="Seleni">Seleni</a> </td> <td><center>34</center> </td></tr> <tr> <td><a href="/wiki/Ceri" title="Ceri">Ceri</a> </td> <td><center>58</center> </td> <td><a href="/wiki/Fluor" title="Fluor">Fluor</a> </td> <td><center>9</center> </td> <td><a href="/wiki/Liti" title="Liti">Liti</a> </td> <td><center>3</center> </td> <td><a href="/wiki/Argent_(element)" class="mw-redirect" title="Argent (element)">Argent</a> </td> <td><center>47</center> </td> <td><a href="/wiki/Silici" title="Silici">Silici</a> </td> <td><center>14</center> </td></tr> </tbody></table> <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=Nombre_at%C3%B2mic&action=edit&section=8" title="Modifica la secció: Vegeu també"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Nombre_m%C3%A0ssic" title="Nombre màssic">Nombre màssic</a></li> <li><a href="/wiki/Propietat_qu%C3%ADmica" title="Propietat química">Propietat química</a></li></ul> <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=Nombre_at%C3%B2mic&action=edit&section=9" title="Modifica la secció: Referències"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist {{#if: | references-column-count references-column-count-{{{col}}}" style="list-style-type: decimal;"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFJensen2005"><span style="font-variant: small-caps;">Jensen</span>, William B. «<a rel="nofollow" class="external text" href="http://pubs.acs.org/doi/abs/10.1021/ed082p1764">The Origins of the Symbols A and Z for Atomic Weight and Number</a>» (en anglès). <i>Journal of Chemical Education</i>, 82, 12, 12-2005, pàg. 1764. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1021%2Fed082p1764">10.1021/ed082p1764</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/0021-9584">0021-9584</a>.</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 book" style="font-style:normal" id="CITEREFArnold_Sommerfeld1921"><span style="font-variant: small-caps;">Arnold Sommerfeld</span>. <a rel="nofollow" class="external text" href="http://archive.org/details/atombauundspekt00sommgoog"><i>Atombau und Spektrallinien</i></a> (en alemany).  F. Vieweg & Sohn, 1921.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Atombau+und+Spektrallinien&rft.aulast=Arnold+Sommerfeld&rft.date=1921&rft.pub=F.+Vieweg+%26+Sohn&rft_id=http%3A%2F%2Farchive.org%2Fdetails%2Fatombauundspekt00sommgoog"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-:0-3"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:0_3-0">3,0</a></sup> <sup><a href="#cite_ref-:0_3-1">3,1</a></sup> <sup><a href="#cite_ref-:0_3-2">3,2</a></sup> <sup><a href="#cite_ref-:0_3-3">3,3</a></sup> <sup><a href="#cite_ref-:0_3-4">3,4</a></sup> <sup><a href="#cite_ref-:0_3-5">3,5</a></sup> <sup><a href="#cite_ref-:0_3-6">3,6</a></sup></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFEgdellBruton2020"><span style="font-variant: small-caps;">Egdell</span>, Russell G.; <span style="font-variant: small-caps;">Bruton</span>, Elizabeth «<a rel="nofollow" class="external text" href="https://royalsocietypublishing.org/doi/10.1098/rsta.2019.0302">Henry Moseley, X-ray spectroscopy and the periodic table</a>» (en anglès). <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i>, 378, 2180, 18-09-2020, pàg. 20190302. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1098%2Frsta.2019.0302">10.1098/rsta.2019.0302</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/1364-503X">1364-503X</a>.</span></span> </li> <li id="cite_note-:1-4"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:1_4-0">4,0</a></sup> <sup><a href="#cite_ref-:1_4-1">4,1</a></sup></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFGeigerMarsden1909"><span style="font-variant: small-caps;">Geiger</span>, H.; <span style="font-variant: small-caps;">Marsden</span>, E. «<a rel="nofollow" class="external text" href="https://royalsocietypublishing.org/doi/10.1098/rspa.1909.0054">On a diffuse reflection of the α-particles</a>» (en anglès). <i>Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character</i>, 82, 557, 31-07-1909, pàg. 495–500. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1098%2Frspa.1909.0054">10.1098/rspa.1909.0054</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/0950-1207">0950-1207</a>.</span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFvan_den_Broek1907"><span style="font-variant: small-caps;">van den Broek</span>, A.J. «Das α-Teilchen und das periodische System der Elemente». <i>Annalen der Physik</i>, 4, 23, 1907, pàg. 199–203.</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" id="CITEREFMoseley1913"><span style="font-variant: small-caps;">Moseley</span>, H.G.J. «<a rel="nofollow" class="external text" href="https://www.tandfonline.com/doi/full/10.1080/14786441308635052">XCIII. The high-frequency spectra of the elements</a>» (en anglès). <i>The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science</i>, 26, 156, 12-1913, pàg. 1024–1034. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1080%2F14786441308635052">10.1080/14786441308635052</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/1941-5982">1941-5982</a>.</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" id="CITEREFRutherford1911"><span style="font-variant: small-caps;">Rutherford</span>, E. «<a rel="nofollow" class="external text" href="https://doi.org/10.1080/14786440508637080">LXXIX. The scattering of α and β particles by matter and the structure of the atom</a>». <i>The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science</i>, 21, 125, 01-05-1911, pàg. 669–688. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1080%2F14786440508637080">10.1080/14786440508637080</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/1941-5982">1941-5982</a>.</span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><a href="#cite_ref-8">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFVan_Den_Broek1911"><span style="font-variant: small-caps;">Van Den Broek</span>, A. «<a rel="nofollow" class="external text" href="https://www.nature.com/articles/087078b0">The Number of Possible Elements and Mendeléff's “Cubic” Periodic System</a>» (en anglès). <i>Nature</i>, 87, 2177, 7-1911, pàg. 78. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1038%2F087078b0">10.1038/087078b0</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/1476-4687">1476-4687</a>.</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="CITEREFVan_Der_Broek1913"><span style="font-variant: small-caps;">Van Der Broek</span>, A. «<a rel="nofollow" class="external text" href="https://www.nature.com/articles/092372c0">Intra-atomic Charge</a>» (en anglès). <i>Nature</i>, 92, 2300, 11-1913, pàg. 372–373. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1038%2F092372c0">10.1038/092372c0</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/1476-4687">1476-4687</a>.</span></span> </li> <li id="cite_note-:3-10"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:3_10-0">10,0</a></sup> <sup><a href="#cite_ref-:3_10-1">10,1</a></sup></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFMoseley1914"><span style="font-variant: small-caps;">Moseley</span>, H.G.J. «<a rel="nofollow" class="external text" href="https://www.tandfonline.com/doi/full/10.1080/14786440408635141">LXXX. The high-frequency spectra of the elements. Part II</a>» (en anglès). <i>The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science</i>, 27, 160, 4-1914, pàg. 703–713. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1080%2F14786440408635141">10.1080/14786440408635141</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/1941-5982">1941-5982</a>.</span></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><a href="#cite_ref-11">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFSoddy1913"><span style="font-variant: small-caps;">Soddy</span>, Frederick «<a rel="nofollow" class="external text" href="https://www.nature.com/articles/092452c0">The Structure of the Atom</a>» (en anglès). <i>Nature</i>, 92, 2303, 12-1913, pàg. 452. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1038%2F092452c0">10.1038/092452c0</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/1476-4687">1476-4687</a>.</span></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><a href="#cite_ref-12">↑</a></span> <span class="reference-text"><span class="citation book" style="font-style:normal" id="CITEREFKumar,_Manjit.2012"><span style="font-variant: small-caps;">Kumar, Manjit.</span>. <a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/761854019"><i>Quántum : Einstein, Bohr y el gran debate sobre la naturaleza de la realidad</i></a>. 2a ed.  Barcelona: Editorial Kairos, 2012. <span style="font-size:90%; white-space:nowrap;"><a href="/wiki/Especial:Fonts_bibliogr%C3%A0fiques/9788472459014" title="Especial:Fonts bibliogràfiques/9788472459014">ISBN 9788472459014</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=Qu%C3%A1ntum+%3A+Einstein%2C+Bohr+y+el+gran+debate+sobre+la+naturaleza+de+la+realidad&rft.aulast=Kumar%2C+Manjit.&rft.date=2012&rft.edition=2a+ed&rft.pub=Editorial+Kairos&rft.place=Barcelona&rft.isbn=9788472459014&rft_id=https%3A%2F%2Fwww.worldcat.org%2Foclc%2F761854019"><span style="display: none;"> </span></span></span> </li> </ol></div></div> <table style="clear: both; width: 75%" align="center" class="toccolours noprint"> <tbody><tr> <th align="center" style="background:#ccccff"> <p><a href="/wiki/Element_qu%C3%ADmic" title="Element químic">Elements químics</a> </p> </th></tr> <tr> <td align="center"><a href="/wiki/Taula_peri%C3%B2dica" title="Taula periòdica">Taula periòdica</a> | <a href="/wiki/Element_qu%C3%ADmic" title="Element químic">Nom</a> | <a href="/wiki/Llista_d%27elements_per_s%C3%ADmbol" title="Llista d'elements per símbol">Símbol atòmic</a> | <a class="mw-selflink selflink">Nombre atòmic</a> </td></tr> <tr> <td align="center" style="background:#ccccff"><a href="/wiki/Grup_de_la_taula_peri%C3%B2dica" title="Grup de la taula periòdica"><b>Grups:</b></a>   <a href="/wiki/Metall_alcal%C3%AD" title="Metall alcalí">1</a> -  <a href="/wiki/Alcalinoterri" title="Alcalinoterri">2</a> -  <a href="/wiki/Grup_3_de_la_taula_peri%C3%B2dica" title="Grup 3 de la taula periòdica">3</a> -  <a href="/wiki/Grup_4_de_la_taula_peri%C3%B2dica" title="Grup 4 de la taula periòdica">4</a> -  <a href="/wiki/Grup_5_de_la_taula_peri%C3%B2dica" title="Grup 5 de la taula periòdica">5</a> -  <a href="/wiki/Grup_6_de_la_taula_peri%C3%B2dica" title="Grup 6 de la taula periòdica">6</a> -  <a href="/wiki/Grup_7_de_la_taula_peri%C3%B2dica" title="Grup 7 de la taula periòdica">7</a> -  <a href="/wiki/Grup_8_de_la_taula_peri%C3%B2dica" title="Grup 8 de la taula periòdica">8</a> -  <a href="/wiki/Grup_9_de_la_taula_peri%C3%B2dica" title="Grup 9 de la taula periòdica">9</a> - <a href="/wiki/Grup_10_de_la_taula_peri%C3%B2dica" title="Grup 10 de la taula periòdica">10</a> - <a href="/wiki/Grup_11_de_la_taula_peri%C3%B2dica" title="Grup 11 de la taula periòdica">11</a> - <a href="/wiki/Grup_12_de_la_taula_peri%C3%B2dica" title="Grup 12 de la taula periòdica">12</a> - <a href="/wiki/Grup_del_bor" class="mw-redirect" title="Grup del bor">13</a> - <a href="/wiki/Grup_del_carboni" title="Grup del carboni">14</a> - <a href="/wiki/Grup_del_nitrogen" class="mw-redirect" title="Grup del nitrogen">15</a> - <a href="/wiki/Calcogen" title="Calcogen">16</a> - <a href="/wiki/Halogen" title="Halogen">17</a> - <a href="/wiki/Gas_noble" title="Gas noble">18</a> </td></tr> <tr> <td align="center" style="background:#ccccff"><a href="/wiki/Per%C3%ADode_de_la_taula_peri%C3%B2dica" title="Període de la taula periòdica"><b>Períodes:</b></a>  <a href="/wiki/Elements_del_per%C3%ADode_1" title="Elements del període 1">1</a>  -  <a href="/wiki/Elements_del_per%C3%ADode_2" title="Elements del període 2">2</a>  -  <a href="/wiki/Elements_del_per%C3%ADode_3" title="Elements del període 3">3</a>  -  <a href="/wiki/Elements_del_per%C3%ADode_4" title="Elements del període 4">4</a>  -  <a href="/wiki/Elements_del_per%C3%ADode_5" title="Elements del període 5">5</a>  -  <a href="/wiki/Elements_del_per%C3%ADode_6" title="Elements del període 6">6</a>  -  <a href="/wiki/Elements_del_per%C3%ADode_7" title="Elements del període 7">7</a> </td></tr> <tr> <td align="center" style="background:#ccccff"><a href="/wiki/S%C3%A8rie_qu%C3%ADmica" class="mw-redirect" title="Sèrie química"><b>Sèries:</b></a>    <a href="/wiki/Actinoide" title="Actinoide">Actinoides</a>  - <a href="/wiki/Lantanoide" title="Lantanoide">Lantanoides</a>  -  <a href="/wiki/Metall_de_transici%C3%B3" title="Metall de transició">Metalls de transició</a>  -  <a href="/wiki/Metall_del_bloc_p" title="Metall del bloc p">Metalls del bloc p</a>  -  <a href="/wiki/Semimetall" title="Semimetall">Semimetalls</a>  -  <a href="/wiki/No-metall" title="No-metall">No-metalls</a>  -  <a href="/wiki/Terres_rares" class="mw-redirect" title="Terres rares">Terres rares</a>  -  <a href="/wiki/Element_transur%C3%A0nic" title="Element transurànic">Transurànids</a> </td></tr> <tr> <td align="center" style="background:#ccccff"><a href="/wiki/Bloc_de_la_taula_peri%C3%B2dica" title="Bloc de la taula periòdica"><b>Blocs:</b></a>  <a href="/wiki/Elements_del_bloc_s" title="Elements del bloc s">bloc s</a>  -  <a href="/wiki/Elements_del_bloc_p" title="Elements del bloc p">bloc p</a>  -  <a href="/wiki/Elements_del_bloc_d" title="Elements del bloc d">bloc d</a>  -  <a href="/wiki/Elements_del_bloc_f" title="Elements del bloc f">bloc f</a>  -  <a href="/wiki/Elements_del_bloc_g" title="Elements del bloc g">bloc g</a> </td></tr></tbody></table> <div role="navigation" class="navbox" aria-label="Navbox" style="padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Control_d%27autoritats" title="Control d'autoritats">Registres d'autoritat</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Gemeinsame_Normdatei" title="Gemeinsame Normdatei">GND</a> <span class="uid"> (<a rel="nofollow" class="external text" href="http://d-nb.info/gnd/4306456-5">1</a>)</span></li></ul> </div></td></tr></tbody></table></div> <p><span style="display: none;" class="interProject"><a href="https://ca.wiktionary.org/wiki/nombre_at%C3%B2mic" class="extiw" title="wikt:nombre atòmic">Viccionari</a></span> </p>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Obtingut de «<a dir="ltr" href="https://ca.wikipedia.org/w/index.php?title=Nombre_atòmic&oldid=33519871">https://ca.wikipedia.org/w/index.php?title=Nombre_atòmic&oldid=33519871</a>»</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Especial:Categorias" title="Especial:Categorias">Categories</a>: <ul><li><a href="/wiki/Categoria:Propietats_qu%C3%ADmiques" title="Categoria:Propietats químiques">Propietats químiques</a></li><li><a href="/wiki/Categoria:Llistes_de_qu%C3%ADmica" title="Categoria:Llistes de química">Llistes de química</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categoria oculta: <ul><li><a href="/wiki/Categoria:Control_d%27autoritats" title="Categoria:Control d'autoritats">Control d'autoritats</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> La pàgina va ser modificada per darrera vegada el 21 maig 2024 a les 15:20.</li> <li id="footer-info-copyright">El text està disponible sota la <a href="/wiki/Viquip%C3%A8dia:Text_de_la_llic%C3%A8ncia_de_Creative_Commons_Reconeixement-Compartir_Igual_4.0_No_adaptada" title="Viquipèdia:Text de la llicència de Creative Commons Reconeixement-Compartir Igual 4.0 No adaptada"> Llicència de Creative Commons Reconeixement i Compartir-Igual</a>; es poden aplicar termes addicionals. 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