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Tilgængelig på 78 sprog" > <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-78" 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">78 sprog</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/Groep_(periodieke_tabel)" title="Groep (periodieke tabel) – afrikaans" lang="af" hreflang="af" data-title="Groep (periodieke tabel)" 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/Gruppe_des_Periodensystems" title="Gruppe des Periodensystems – schweizertysk" lang="gsw" hreflang="gsw" data-title="Gruppe des Periodensystems" data-language-autonym="Alemannisch" data-language-local-name="schweizertysk" 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/Grupo_d%27a_tabla_periodica" title="Grupo d'a tabla periodica – aragonsk" lang="an" hreflang="an" data-title="Grupo d'a tabla periodica" data-language-autonym="Aragonés" data-language-local-name="aragonsk" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%AC%D9%85%D9%88%D8%B9%D8%A9_(%D8%AC%D8%AF%D9%88%D9%84_%D8%AF%D9%88%D8%B1%D9%8A)" title="مجموعة (جدول دوري) – arabisk" lang="ar" hreflang="ar" data-title="مجموعة (جدول دوري)" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Grupu_de_la_tabla_peri%C3%B3dica" title="Grupu de la tabla periódica – asturisk" lang="ast" hreflang="ast" data-title="Grupu de la tabla periódica" data-language-autonym="Asturianu" data-language-local-name="asturisk" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/D%C3%B6vri_c%C9%99dv%C9%99l_qrupu" title="Dövri cədvəl qrupu – aserbajdsjansk" lang="az" hreflang="az" data-title="Dövri cədvəl qrupu" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-ban mw-list-item"><a href="https://ban.wikipedia.org/wiki/Watek_(tab%C3%A9l_p%C3%A9riodik)" title="Watek (tabél périodik) – balinesisk" lang="ban" hreflang="ban" data-title="Watek (tabél périodik)" data-language-autonym="Basa Bali" data-language-local-name="balinesisk" class="interlanguage-link-target"><span>Basa Bali</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%93%D1%80%D1%83%D0%BF%D0%B0_%D0%BF%D0%B5%D1%80%D1%8B%D1%8F%D0%B4%D1%8B%D1%87%D0%BD%D0%B0%D0%B9_%D1%81%D1%96%D1%81%D1%82%D1%8D%D0%BC%D1%8B" title="Група перыядычнай сістэмы – belarusisk" lang="be" hreflang="be" data-title="Група перыядычнай сістэмы" data-language-autonym="Беларуская" data-language-local-name="belarusisk" 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%93%D1%80%D1%83%D0%BF%D0%B0_%D0%BD%D0%B0_%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4%D0%B8%D1%87%D0%BD%D0%B0%D1%82%D0%B0_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0" title="Група на периодичната система – bulgarsk" lang="bg" hreflang="bg" data-title="Група на периодичната система" data-language-autonym="Български" data-language-local-name="bulgarsk" 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%B6%E0%A7%8D%E0%A6%B0%E0%A7%87%E0%A6%A3%E0%A6%BF_(%E0%A6%AA%E0%A6%B0%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%AF%E0%A6%BC_%E0%A6%B8%E0%A6%BE%E0%A6%B0%E0%A6%A3%E0%A6%BF)" title="শ্রেণি (পর্যায় সারণি) – bengali" lang="bn" hreflang="bn" data-title="শ্রেণি (পর্যায় সারণি)" data-language-autonym="বাংলা" data-language-local-name="bengali" 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/Strollad_eus_an_daolenn_beriodek" title="Strollad eus an daolenn beriodek – bretonsk" lang="br" hreflang="br" data-title="Strollad eus an daolenn beriodek" data-language-autonym="Brezhoneg" data-language-local-name="bretonsk" 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/Grupa_periodnog_sistema_elemenata" title="Grupa periodnog sistema elemenata – bosnisk" lang="bs" hreflang="bs" data-title="Grupa periodnog sistema elemenata" data-language-autonym="Bosanski" data-language-local-name="bosnisk" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Grup_de_la_taula_peri%C3%B2dica" title="Grup de la taula periòdica – catalansk" lang="ca" hreflang="ca" data-title="Grup de la taula periòdica" data-language-autonym="Català" data-language-local-name="catalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Skupina_(periodick%C3%A1_tabulka)" title="Skupina (periodická tabulka) – tjekkisk" lang="cs" hreflang="cs" data-title="Skupina (periodická tabulka)" data-language-autonym="Čeština" data-language-local-name="tjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Gr%C5%B5p_yn_y_tabl_cyfnodol" title="Grŵp yn y tabl cyfnodol – walisisk" lang="cy" hreflang="cy" data-title="Grŵp yn y tabl cyfnodol" data-language-autonym="Cymraeg" data-language-local-name="walisisk" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Gruppe_des_Periodensystems" title="Gruppe des Periodensystems – tysk" lang="de" hreflang="de" data-title="Gruppe des Periodensystems" data-language-autonym="Deutsch" data-language-local-name="tysk" 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%9F%CE%BC%CE%AC%CE%B4%CE%B1_%CF%80%CE%B5%CF%81%CE%B9%CE%BF%CE%B4%CE%B9%CE%BA%CE%BF%CF%8D_%CF%80%CE%AF%CE%BD%CE%B1%CE%BA%CE%B1" title="Ομάδα περιοδικού πίνακα – græsk" lang="el" hreflang="el" data-title="Ομάδα περιοδικού πίνακα" data-language-autonym="Ελληνικά" data-language-local-name="græsk" 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/Group_(periodic_table)" title="Group (periodic table) – engelsk" lang="en" hreflang="en" data-title="Group (periodic table)" data-language-autonym="English" data-language-local-name="engelsk" 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/Grupo_de_la_perioda_tabelo" title="Grupo de la perioda tabelo – esperanto" lang="eo" hreflang="eo" data-title="Grupo de la perioda tabelo" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es badge-Q70893996 mw-list-item" title=""><a href="https://es.wikipedia.org/wiki/Grupo_de_la_tabla_peri%C3%B3dica" title="Grupo de la tabla periódica – spansk" lang="es" hreflang="es" data-title="Grupo de la tabla periódica" data-language-autonym="Español" data-language-local-name="spansk" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Taula_periodikoko_talde" title="Taula periodikoko talde – baskisk" lang="eu" hreflang="eu" data-title="Taula periodikoko talde" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%AF%D8%B1%D9%88%D9%87%E2%80%8C%D9%87%D8%A7%DB%8C_%D8%AC%D8%AF%D9%88%D9%84_%D8%AA%D9%86%D8%A7%D9%88%D8%A8%DB%8C" title="گروه‌های جدول تناوبی – persisk" lang="fa" hreflang="fa" data-title="گروه‌های جدول تناوبی" data-language-autonym="فارسی" data-language-local-name="persisk" 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/Ryhm%C3%A4_(jaksollinen_j%C3%A4rjestelm%C3%A4)" title="Ryhmä (jaksollinen järjestelmä) – finsk" lang="fi" hreflang="fi" data-title="Ryhmä (jaksollinen järjestelmä)" data-language-autonym="Suomi" data-language-local-name="finsk" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Groupe_du_tableau_p%C3%A9riodique" title="Groupe du tableau périodique – fransk" lang="fr" hreflang="fr" data-title="Groupe du tableau périodique" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Gemyske_kloft" title="Gemyske kloft – vestfrisisk" lang="fy" hreflang="fy" data-title="Gemyske kloft" data-language-autonym="Frysk" data-language-local-name="vestfrisisk" 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/Gr%C3%BApa%C3%AD_an_t%C3%A1bla_pheiriadaigh" title="Grúpaí an tábla pheiriadaigh – irsk" lang="ga" hreflang="ga" data-title="Grúpaí an tábla pheiriadaigh" data-language-autonym="Gaeilge" data-language-local-name="irsk" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Grupo_da_t%C3%A1boa_peri%C3%B3dica" title="Grupo da táboa periódica – galicisk" lang="gl" hreflang="gl" data-title="Grupo da táboa periódica" data-language-autonym="Galego" data-language-local-name="galicisk" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gv mw-list-item"><a href="https://gv.wikipedia.org/wiki/Possan_(y_taabyl_reiltagh)" title="Possan (y taabyl reiltagh) – manx" lang="gv" hreflang="gv" data-title="Possan (y taabyl reiltagh)" 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%A7%D7%91%D7%95%D7%A6%D7%94_(%D7%9B%D7%99%D7%9E%D7%99%D7%94)" title="קבוצה (כימיה) – hebraisk" lang="he" hreflang="he" data-title="קבוצה (כימיה)" data-language-autonym="עברית" data-language-local-name="hebraisk" 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%B8%E0%A4%AE%E0%A5%82%E0%A4%B9_(%E0%A4%86%E0%A4%B5%E0%A4%B0%E0%A5%8D%E0%A4%A4_%E0%A4%B8%E0%A4%BE%E0%A4%B0%E0%A4%A3%E0%A5%80)" title="समूह (आवर्त सारणी) – hindi" lang="hi" hreflang="hi" data-title="समूह (आवर्त सारणी)" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Skupina_periodnog_sustava" title="Skupina periodnog sustava – kroatisk" lang="hr" hreflang="hr" data-title="Skupina periodnog sustava" data-language-autonym="Hrvatski" data-language-local-name="kroatisk" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8A%D5%A1%D6%80%D5%A2%D5%A5%D6%80%D5%A1%D5%AF%D5%A1%D5%B6_%D5%A1%D5%B2%D5%B5%D5%B8%D6%82%D5%BD%D5%A1%D5%AF%D5%AB_%D5%AD%D5%B8%D6%82%D5%B4%D5%A2" title="Պարբերական աղյուսակի խումբ – armensk" lang="hy" hreflang="hy" data-title="Պարբերական աղյուսակի խումբ" data-language-autonym="Հայերեն" data-language-local-name="armensk" 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/Gruppos_del_tabella_periodic" title="Gruppos del tabella periodic – interlingua" lang="ia" hreflang="ia" data-title="Gruppos del tabella periodic" 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/Golongan_tabel_periodik" title="Golongan tabel periodik – indonesisk" lang="id" hreflang="id" data-title="Golongan tabel periodik" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Efnaflokkur" title="Efnaflokkur – islandsk" lang="is" hreflang="is" data-title="Efnaflokkur" data-language-autonym="Íslenska" data-language-local-name="islandsk" 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/Gruppo_della_tavola_periodica" title="Gruppo della tavola periodica – italiensk" lang="it" hreflang="it" data-title="Gruppo della tavola periodica" data-language-autonym="Italiano" data-language-local-name="italiensk" 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%85%83%E7%B4%A0%E3%81%AE%E6%97%8F" title="元素の族 – japansk" lang="ja" hreflang="ja" data-title="元素の族" data-language-autonym="日本語" data-language-local-name="japansk" 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/Golongan_tab%C3%A8l_p%C3%A9riodik" title="Golongan tabèl périodik – javanesisk" lang="jv" hreflang="jv" data-title="Golongan tabèl périodik" data-language-autonym="Jawa" data-language-local-name="javanesisk" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A1%B1_(%EC%A3%BC%EA%B8%B0%EC%9C%A8%ED%91%9C)" title="족 (주기율표) – koreansk" lang="ko" hreflang="ko" data-title="족 (주기율표)" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Grex_(systema_periodicum)" title="Grex (systema periodicum) – latin" lang="la" hreflang="la" data-title="Grex (systema periodicum)" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Grupp_de_la_taula_peri%C3%B2dica" title="Grupp de la taula periòdica – lombardisk" lang="lmo" hreflang="lmo" data-title="Grupp de la taula periòdica" data-language-autonym="Lombard" data-language-local-name="lombardisk" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Periodisk%C4%81s_tabulas_grupa" title="Periodiskās tabulas grupa – lettisk" lang="lv" hreflang="lv" data-title="Periodiskās tabulas grupa" data-language-autonym="Latviešu" data-language-local-name="lettisk" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mi mw-list-item"><a href="https://mi.wikipedia.org/wiki/R%C5%8Dp%C5%AB_ripanga_p%C5%ABmotu" title="Rōpū ripanga pūmotu – maori" lang="mi" hreflang="mi" data-title="Rōpū ripanga pūmotu" data-language-autonym="Māori" data-language-local-name="maori" class="interlanguage-link-target"><span>Māori</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%93%D1%80%D1%83%D0%BF%D0%B0_(%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4%D0%B5%D0%BD_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC)" title="Група (периоден систем) – makedonsk" lang="mk" hreflang="mk" data-title="Група (периоден систем)" data-language-autonym="Македонски" data-language-local-name="makedonsk" 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%97%E0%B5%8D%E0%B4%B0%E0%B5%82%E0%B4%AA%E0%B5%8D%E0%B4%AA%E0%B5%8D_(%E0%B4%86%E0%B4%B5%E0%B5%BC%E0%B4%A4%E0%B5%8D%E0%B4%A4%E0%B4%A8%E0%B4%AA%E0%B5%8D%E0%B4%AA%E0%B4%9F%E0%B5%8D%E0%B4%9F%E0%B4%BF%E0%B4%95)" title="ഗ്രൂപ്പ് (ആവർത്തനപ്പട്ടിക) – malayalam" lang="ml" hreflang="ml" data-title="ഗ്രൂപ്പ് (ആവർത്തനപ്പട്ടിക)" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D2%AE%D0%B5%D0%BB%D1%8D%D1%85_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B8%D0%B9%D0%BD_%D0%B1%D2%AF%D0%BB%D1%8D%D0%B3" title="Үелэх системийн бүлэг – mongolsk" lang="mn" hreflang="mn" data-title="Үелэх системийн бүлэг" data-language-autonym="Монгол" data-language-local-name="mongolsk" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Kumpulan_jadual_berkala" title="Kumpulan jadual berkala – malajisk" lang="ms" hreflang="ms" data-title="Kumpulan jadual berkala" data-language-autonym="Bahasa Melayu" data-language-local-name="malajisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Grupp_(Chemie)" title="Grupp (Chemie) – nedertysk" lang="nds" hreflang="nds" data-title="Grupp (Chemie)" data-language-autonym="Plattdüütsch" data-language-local-name="nedertysk" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Groep_(periodiek_systeem)" title="Groep (periodiek systeem) – nederlandsk" lang="nl" hreflang="nl" data-title="Groep (periodiek systeem)" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" 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/Gruppene_i_periodesystemet" title="Gruppene i periodesystemet – nynorsk" lang="nn" hreflang="nn" data-title="Gruppene i periodesystemet" data-language-autonym="Norsk nynorsk" data-language-local-name="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/Periodesystemets_grupper" title="Periodesystemets grupper – bokmål" lang="nb" hreflang="nb" data-title="Periodesystemets grupper" data-language-autonym="Norsk bokmål" data-language-local-name="bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%B6%E0%AD%8D%E0%AC%B0%E0%AD%87%E0%AC%A3%E0%AD%80_(%E0%AC%AA%E0%AC%B0%E0%AD%8D%E0%AC%AF%E0%AD%8D%E0%AD%9F%E0%AC%BE%E0%AD%9F_%E0%AC%B8%E0%AC%BE%E0%AC%B0%E0%AC%A3%E0%AD%80)" title="ଶ୍ରେଣୀ (ପର୍ଯ୍ୟାୟ ସାରଣୀ) – oriya" lang="or" hreflang="or" data-title="ଶ୍ରେଣୀ (ପର୍ଯ୍ୟାୟ ସାରଣୀ)" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="oriya" class="interlanguage-link-target"><span>ଓଡ଼ିଆ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Grupa_uk%C5%82adu_okresowego" title="Grupa układu okresowego – polsk" lang="pl" hreflang="pl" data-title="Grupa układu okresowego" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Grupo_(qu%C3%ADmica)" title="Grupo (química) – portugisisk" lang="pt" hreflang="pt" data-title="Grupo (química)" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Grup%C4%83_(tabelul_periodic_al_elementelor)" title="Grupă (tabelul periodic al elementelor) – rumænsk" lang="ro" hreflang="ro" data-title="Grupă (tabelul periodic al elementelor)" data-language-autonym="Română" data-language-local-name="rumænsk" 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%93%D1%80%D1%83%D0%BF%D0%BF%D0%B0_%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B9_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D1%8B" title="Группа периодической системы – russisk" lang="ru" hreflang="ru" data-title="Группа периодической системы" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh badge-Q70893996 mw-list-item" title=""><a href="https://sh.wikipedia.org/wiki/Grupa_periodnog_sistema" title="Grupa periodnog sistema – serbokroatisk" lang="sh" hreflang="sh" data-title="Grupa periodnog sistema" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatisk" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Group_(periodic_table)" title="Group (periodic table) – Simple English" lang="en-simple" hreflang="en-simple" data-title="Group (periodic table)" 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/Skupina_(periodick%C3%A1_tabu%C4%BEka)" title="Skupina (periodická tabuľka) – slovakisk" lang="sk" hreflang="sk" data-title="Skupina (periodická tabuľka)" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" 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/Skupina_periodnega_sistema" title="Skupina periodnega sistema – slovensk" lang="sl" hreflang="sl" data-title="Skupina periodnega sistema" data-language-autonym="Slovenščina" data-language-local-name="slovensk" 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/Ju%C3%A1vkku_(r%C3%A1i%C4%91ul%C3%A2%C5%A1_vu%C3%A1h%C3%A1d%C3%A2h)" title="Juávkku (ráiđulâš vuáhádâh) – enaresamisk" lang="smn" hreflang="smn" data-title="Juávkku (ráiđulâš vuáhádâh)" data-language-autonym="Anarâškielâ" data-language-local-name="enaresamisk" class="interlanguage-link-target"><span>Anarâškielâ</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Grupet_e_sistemit_periodik" title="Grupet e sistemit periodik – albansk" lang="sq" hreflang="sq" data-title="Grupet e sistemit periodik" data-language-autonym="Shqip" data-language-local-name="albansk" 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%93%D1%80%D1%83%D0%BF%D0%B0_(%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4%D0%BD%D0%B8_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC)" title="Група (периодни систем) – serbisk" lang="sr" hreflang="sr" data-title="Група (периодни систем)" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Golongan_tab%C3%A9l_periodik" title="Golongan tabél periodik – sundanesisk" lang="su" hreflang="su" data-title="Golongan tabél periodik" data-language-autonym="Sunda" data-language-local-name="sundanesisk" 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/Periodiska_systemets_grupper" title="Periodiska systemets grupper – svensk" lang="sv" hreflang="sv" data-title="Periodiska systemets grupper" data-language-autonym="Svenska" data-language-local-name="svensk" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%A8%E0%AF%86%E0%AE%9F%E0%AF%81%E0%AE%99%E0%AF%8D%E0%AE%95%E0%AF%81%E0%AE%B4%E0%AF%81_(%E0%AE%A4%E0%AE%A9%E0%AE%BF%E0%AE%AE_%E0%AE%85%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AE%B5%E0%AE%A3%E0%AF%88)" title="நெடுங்குழு (தனிம அட்டவணை) – tamil" lang="ta" hreflang="ta" data-title="நெடுங்குழு (தனிம அட்டவணை)" data-language-autonym="தமிழ்" data-language-local-name="tamil" 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%97%E0%B1%8D%E0%B0%B0%E0%B1%82%E0%B0%AA%E0%B1%8D_(%E0%B0%86%E0%B0%B5%E0%B0%B0%E0%B1%8D%E0%B0%A4%E0%B0%A8_%E0%B0%AA%E0%B0%9F%E0%B1%8D%E0%B0%9F%E0%B0%BF%E0%B0%95)" title="గ్రూప్ (ఆవర్తన పట్టిక) – telugu" lang="te" hreflang="te" data-title="గ్రూప్ (ఆవర్తన పట్టిక)" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AB%E0%B8%A1%E0%B8%B9%E0%B9%88_(%E0%B8%95%E0%B8%B2%E0%B8%A3%E0%B8%B2%E0%B8%87%E0%B8%98%E0%B8%B2%E0%B8%95%E0%B8%B8)" title="หมู่ (ตารางธาตุ) – thai" lang="th" hreflang="th" data-title="หมู่ (ตารางธาตุ)" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Grup_(periyodik_tablo)" title="Grup (periyodik tablo) – tyrkisk" lang="tr" hreflang="tr" data-title="Grup (periyodik tablo)" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" 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%93%D1%80%D1%83%D0%BF%D0%B0_%D0%BF%D0%B5%D1%80%D1%96%D0%BE%D0%B4%D0%B8%D1%87%D0%BD%D0%BE%D1%97_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B8" title="Група періодичної системи – ukrainsk" lang="uk" hreflang="uk" data-title="Група періодичної системи" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li 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</nav> <nav class="vector-appearance-landmark" aria-label="Udseende"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Udseende</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flyt til sidebjælken</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">skjul</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Fra Wikipedia, den frie encyklopædi</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="da" dir="ltr"><dl><dd><span typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Disambig_bordered_fade.svg/19px-Disambig_bordered_fade.svg.png" decoding="async" width="19" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Disambig_bordered_fade.svg/29px-Disambig_bordered_fade.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Disambig_bordered_fade.svg/38px-Disambig_bordered_fade.svg.png 2x" data-file-width="236" data-file-height="185" /></span></span><i> For alternative betydninger, se <a href="/wiki/Gruppe" class="mw-disambig" title="Gruppe">Gruppe</a>.</i> <small>(<a href="/wiki/Speciel:Pr%C3%A6fiksindeks/Gruppe" title="Speciel:Præfiksindeks/Gruppe">Se også artikler, som begynder med Gruppe</a>)</small></dd></dl> <p>I det <a href="/wiki/Periodiske_system" title="Periodiske system">periodiske system</a> er en <b>gruppe</b> hver kolonne i systemet. Alle <a href="/wiki/Grundstof" title="Grundstof">grundstoffer</a> i en gruppe besidder samme antal <a href="/wiki/Valenselektron" title="Valenselektron">valenselektroner</a> og har dermed ensartede kemiske egenskaber. Der er i alt 18 grupper, hvoraf otte (grupperne 1, 2 og 13-18) hører under den tidligere benyttede betegnelse <a href="/wiki/Hovedgruppe" title="Hovedgruppe">hovedgruppe</a> og ti (Gruppen 3-12) i samme nomenklatur kaldtes undergrupper. I undergrupperne forefindes <a href="/wiki/Overgangsmetal" title="Overgangsmetal">overgangsmetallerne</a>. Oppefra og ned stiger grundstoffernes <a href="/wiki/Atomv%C3%A6gt" class="mw-redirect" title="Atomvægt">atomvægt</a>. <a href="/wiki/Elektronegativitet" title="Elektronegativitet">Elektronegativiteten</a> aftager og den metalliske karakter tager til. Flere grupper sammensluttes i <a href="/wiki/Blok_(periodisk_system)" class="mw-redirect" title="Blok (periodisk system)">blokke</a>. Grupper med særligt ensartede egenskaber betegnes også som "grundstoffamilier". Dette gælder hovedsageligt <a href="/wiki/Alkalimetal" title="Alkalimetal">alkali</a>- og <a href="/wiki/Jordalkalimetal" title="Jordalkalimetal">jordalkalimetallerne</a> såvel som <a href="/wiki/Halogen" class="mw-redirect" title="Halogen">halogenerne</a>. </p><p>Sammenhænge på tværs af grupper eller blokke er i tidernes løb blevet opdaget og nogle har fået navn. Dette gælder blandt andet <a href="/wiki/Hestens_spring" title="Hestens spring">hestens spring</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Gruppernes_navne">Gruppernes navne</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gruppe_(periodiske_system)&veaction=edit&section=1" title="Redigér afsnit: Gruppernes navne" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gruppe_(periodiske_system)&action=edit&section=1" title="Edit section's source code: Gruppernes navne"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Nummereringen af grupperne med arabertal (1 til 18) følger den gældende <a href="/wiki/IUPAC" class="mw-redirect" title="IUPAC">IUPAC</a>-konvention (International Union of Pure and Applied Chemistry) og skulle løse uoverensstemmelser mellem den gamle IUPAC-konvention og CAS-konventionen. Da grundstofferne i visse grupper udviser særdeles lignende kemiske egenskaber, har de enkelte grupper specielle navne. Andre grupper har navne efter de mest kendte grundstoffer i gruppen. </p><p>Den gamle IUPAC-konvention var udledt i Amerika og stammer tilbage fra tiden, hvor systemet kaldtes langperiodiske system; <i>A</i> stod for den venstre og <i>B</i> for den højre side af systemet. <a href="/wiki/Chemical_Abstracts_Service" title="Chemical Abstracts Service">Chemical Abstracts Service</a> (CAS) anvendte indtil år 1986 en nummerering for kortperiodiske system. CAS-gruppebetegnelserne bruges stadig visse steder i Europa. <i>A</i> står her for hovedgruppegrundstoffer og <i>B</i> for undergruppegrundstoffer. </p> <table class="prettytable"> <tbody><tr> <th>IUPAC-konvention </th> <th>Gruppenavn </th> <th>Hovedgruppe/Undergruppe </th> <th>IUPAC (gammel) </th> <th>CAS </th></tr> <tr> <td>Gruppe 1 </td> <td><a href="/wiki/Alkalimetal" title="Alkalimetal">Alkalimetaller</a> </td> <td>Hovedgruppe </td> <td>IA </td> <td>IA </td></tr> <tr> <td>Gruppe 2 </td> <td><a href="/wiki/Jordalkalimetal" title="Jordalkalimetal">Jordalkalimetaller</a> </td> <td>Hovedgruppe </td> <td>IIA </td> <td>IIA </td></tr> <tr> <td>Gruppe 3 </td> <td><a href="/w/index.php?title=Scandiumgruppe&action=edit&redlink=1" class="new" title="Scandiumgruppe (ikke skrevet endnu)">Scandiumgruppe</a> </td> <td>Undergruppe </td> <td>IIIA </td> <td>IIIB </td></tr> <tr> <td>Gruppe 4 </td> <td><a href="/wiki/Titangruppe" class="mw-redirect" title="Titangruppe">Titangruppe</a> </td> <td>Undergruppe </td> <td>IVA </td> <td>IVB </td></tr> <tr> <td>Gruppe 5 </td> <td><a href="/w/index.php?title=Vanadiumgruppe&action=edit&redlink=1" class="new" title="Vanadiumgruppe (ikke skrevet endnu)">Vanadiumgruppe</a> </td> <td>Undergruppe </td> <td>VA </td> <td>VB </td></tr> <tr> <td>Gruppe 6 </td> <td><a href="/w/index.php?title=Kromgruppe&action=edit&redlink=1" class="new" title="Kromgruppe (ikke skrevet endnu)">Kromgruppe</a> </td> <td>Undergruppe </td> <td>VIA </td> <td>VIB </td></tr> <tr> <td>Gruppe 7 </td> <td><a href="/w/index.php?title=Mangangruppe&action=edit&redlink=1" class="new" title="Mangangruppe (ikke skrevet endnu)">Mangangruppe</a> </td> <td>Undergruppe </td> <td>VIIA </td> <td>VIIB </td></tr> <tr> <td>Gruppe 8 </td> <td><a href="/w/index.php?title=Jerngruppe&action=edit&redlink=1" class="new" title="Jerngruppe (ikke skrevet endnu)">Jerngruppe</a> </td> <td>Undergruppe </td> <td>VIIIA </td> <td>VIIIB </td></tr> <tr> <td>Gruppe 9 </td> <td><a href="/w/index.php?title=Kobaltgruppe&action=edit&redlink=1" class="new" title="Kobaltgruppe (ikke skrevet endnu)">Kobaltgruppe</a> </td> <td>Undergruppe </td> <td>VIIIA </td> <td>VIIIB </td></tr> <tr> <td>Gruppe 10 </td> <td><a href="/w/index.php?title=Nikkelgruppe&action=edit&redlink=1" class="new" title="Nikkelgruppe (ikke skrevet endnu)">Nikkelgruppe</a> </td> <td>Undergruppe </td> <td>VIIIA </td> <td>VIIIB </td></tr> <tr> <td>Gruppe 11 </td> <td><a href="/w/index.php?title=M%C3%B8ntmetallerne&action=edit&redlink=1" class="new" title="Møntmetallerne (ikke skrevet endnu)">Møntmetallerne</a> </td> <td>Undergruppe </td> <td>IB </td> <td>IB </td></tr> <tr> <td>Gruppe 12 </td> <td><a href="/w/index.php?title=Zinkgruppe&action=edit&redlink=1" class="new" title="Zinkgruppe (ikke skrevet endnu)">Zinkgruppe</a> </td> <td>Undergruppe </td> <td>IIB </td> <td>IIB </td></tr> <tr> <td>Gruppe 13 </td> <td><a href="/w/index.php?title=Borgruppe&action=edit&redlink=1" class="new" title="Borgruppe (ikke skrevet endnu)">Borgruppe</a> / Jordmetaller </td> <td>Hovedgruppe </td> <td>IIIB </td> <td>IIIA </td></tr> <tr> <td>Gruppe 14 </td> <td><a href="/w/index.php?title=Kulstof-silicium-gruppe&action=edit&redlink=1" class="new" title="Kulstof-silicium-gruppe (ikke skrevet endnu)">Kulstof-silicium-gruppe</a> </td> <td>Hovedgruppe </td> <td>IVB </td> <td>IVA </td></tr> <tr> <td>Gruppe 15 </td> <td><a href="/w/index.php?title=Kv%C3%A6lstof-fosfor-gruppe&action=edit&redlink=1" class="new" title="Kvælstof-fosfor-gruppe (ikke skrevet endnu)">Kvælstof-fosfor-gruppe</a> </td> <td>Hovedgruppe </td> <td>VB </td> <td>VA </td></tr> <tr> <td>Gruppe 16 </td> <td><a href="/w/index.php?title=Chalkogen&action=edit&redlink=1" class="new" title="Chalkogen (ikke skrevet endnu)">Chalkogener</a> / Syregruppe </td> <td>Hovedgruppe </td> <td>VIB </td> <td>VIA </td></tr> <tr> <td>Gruppe 17 </td> <td><a href="/wiki/Halogen" class="mw-redirect" title="Halogen">Halogener</a> </td> <td>Hovedgruppe </td> <td>VIIB </td> <td>VIIA </td></tr> <tr> <td>Gruppe 18 </td> <td><a href="/wiki/%C3%86delgas" title="Ædelgas">Ædelgasser</a> </td> <td>Hovedgruppe </td> <td>VIIIB </td> <td>VIIIA </td></tr></tbody></table> <p>Yderligere betragtes også <a href="/wiki/Lanthanider" title="Lanthanider">lanthaniderne</a> og <a href="/wiki/Actinid" title="Actinid">actiniderne</a> som gruppe grundet deres usædvanligt ligedanne egenskaber. I disse grupper udfyldes <a href="/wiki/Elektronskal#Orbitaler" title="Elektronskal">f-orbitalerne</a>, hvilket bevarer det samme antal valenselektroner. </p><p>De endnu ikke fremstillede grundstoffer med atomnummer 122 til 153 danner en gruppe af <a href="/wiki/Glenn_T._Seaborg" title="Glenn T. Seaborg">Glenn Seaborg</a> kaldet <a href="/w/index.php?title=Superactinoid&action=edit&redlink=1" class="new" title="Superactinoid (ikke skrevet endnu)">superactinoider</a>. I disse grundstoffer udfyldes 5g- og 6f-orbitalerne.<sup id="cite_ref-Huheey_1-0" class="reference"><a href="#cite_note-Huheey-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Alle disse grundstoffer har sandsynligvis meget korte <a href="/wiki/Halveringstid" title="Halveringstid">halveringstider</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Referencer">Referencer</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gruppe_(periodiske_system)&veaction=edit&section=2" title="Redigér afsnit: Referencer" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gruppe_(periodiske_system)&action=edit&section=2" title="Edit section's source code: Referencer"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r11780210">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Huheey-1"><span class="mw-cite-backlink"><a href="#cite_ref-Huheey_1-0">^</a></span> <span class="reference-text">J. Huheey: Anorganische Chemie, 2. Auflage, 1995</span> </li> </ol></div></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Hentet fra "<a dir="ltr" href="https://da.wikipedia.org/w/index.php?title=Gruppe_(periodiske_system)&oldid=11967078">https://da.wikipedia.org/w/index.php?title=Gruppe_(periodiske_system)&oldid=11967078</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Speciel:Kategorier" title="Speciel:Kategorier">Kategori</a>: <ul><li><a href="/wiki/Kategori:Periodiske_system" title="Kategori:Periodiske system">Periodiske system</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"> Denne side blev senest ændret den 3. februar 2025 kl. 19:48.</li> <li id="footer-info-copyright">Tekst er tilgængelig under <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/deed.da">Creative Commons Navngivelse/Del på samme vilkår 4.0</a>; yderligere betingelser kan være gældende. 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