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class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Sitio"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="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"> 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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_gl.wikipedia.org&uselang=gl" class=""><span>Doazóns</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:Crear_unha_conta&returnto=Ani%C3%B3n" title="É recomendable que cree unha conta e acceda ao sistema, se ben non é obrigatorio" class=""><span>Crear unha conta</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:Iniciar_sesi%C3%B3n&returnto=Ani%C3%B3n" title="É recomendable que se rexistre, se ben non é obrigatorio [o]" accesskey="o" class=""><span>Acceder ao sistema</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="Máis opcións" > <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="Ferramentas persoais" > <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">Ferramentas persoais</span> </label> <div class="vector-dropdown-content"> <div 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obrigatorio [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Acceder ao sistema</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"> Páxinas para os editores sen a sesión iniciada <a href="/wiki/Axuda:Introduci%C3%B3n" aria-label="Máis información sobre a edición"><span>máis información</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:As_mi%C3%B1as_contribuci%C3%B3ns" title="Unha lista das modificacións feitas desde este enderezo IP [y]" accesskey="y"><span>Contribucións</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Especial:A_mi%C3%B1a_conversa" title="Conversa acerca de edicións feitas desde este enderezo IP [n]" accesskey="n"><span>Conversa</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="Sitio"> <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="Contidos" 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">Contidos</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mover á barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">agochar</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">Inicio</div> </a> </li> <li id="toc-Anións_diversos" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Anións_diversos"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Anións diversos</span> </div> </a> <ul id="toc-Anións_diversos-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Notas" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Notas"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Notas</span> </div> </a> <ul id="toc-Notas-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Véxase_tamén" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Véxase_tamén"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Véxase tamén</span> </div> </a> <ul id="toc-Véxase_tamén-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="Contidos" 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="Mostrar ou agochar a táboa de contidos" > <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">Mostrar ou agochar a táboa de contidos</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">Anión</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="Ir a un artigo noutra lingua. Dispoñible en 50 linguas" > <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-50" 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">50 linguas</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar badge-Q70893996 mw-list-item" title=""><a href="https://ar.wikipedia.org/wiki/%D8%B4%D8%A7%D8%B1%D8%AF%D8%A9_%D8%B5%D8%A7%D8%B9%D8%AF%D8%A9" title="شاردة صاعدة – árabe" lang="ar" hreflang="ar" data-title="شاردة صاعدة" data-language-autonym="العربية" data-language-local-name="árabe" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Anion" title="Anion – acerbaixano" lang="az" hreflang="az" data-title="Anion" data-language-autonym="Azərbaycanca" data-language-local-name="acerbaixano" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%90%D0%BD%D1%96%D1%91%D0%BD" title="Аніён – belaruso" lang="be" hreflang="be" data-title="Аніён" data-language-autonym="Беларуская" data-language-local-name="belaruso" 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%D0%BD%D0%B8%D0%BE%D0%BD" title="Анион – búlgaro" lang="bg" hreflang="bg" data-title="Анион" data-language-autonym="Български" data-language-local-name="búlgaro" 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%85%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%A8%E0%A6%BE%E0%A6%AF%E0%A6%BC%E0%A6%A8" title="অ্যানায়ন – bengalí" lang="bn" hreflang="bn" data-title="অ্যানায়ন" data-language-autonym="বাংলা" data-language-local-name="bengalí" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Ani%C3%B3_(%C3%A0tom)" title="Anió (àtom) – catalán" lang="ca" hreflang="ca" data-title="Anió (àtom)" data-language-autonym="Català" data-language-local-name="catalán" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%A6%D8%A7%D9%86%DB%8C%DB%86%D9%86" title="ئانیۆن – kurdo central" lang="ckb" hreflang="ckb" data-title="ئانیۆن" data-language-autonym="کوردی" data-language-local-name="kurdo 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/Anion" title="Anion – checo" lang="cs" hreflang="cs" data-title="Anion" data-language-autonym="Čeština" data-language-local-name="checo" 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%D0%BD%D0%B8%D0%BE%D0%BD" title="Анион – chuvaxo" lang="cv" hreflang="cv" data-title="Анион" data-language-autonym="Чӑвашла" data-language-local-name="chuvaxo" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Anion" title="Anion – dinamarqués" lang="da" hreflang="da" data-title="Anion" data-language-autonym="Dansk" data-language-local-name="dinamarqués" 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/Anion" title="Anion – alemán" lang="de" hreflang="de" data-title="Anion" data-language-autonym="Deutsch" data-language-local-name="alemán" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en badge-Q70893996 mw-list-item" title=""><a href="https://en.wikipedia.org/wiki/Anion" title="Anion – inglés" lang="en" hreflang="en" data-title="Anion" data-language-autonym="English" data-language-local-name="inglés" 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/Anjono" title="Anjono – esperanto" lang="eo" hreflang="eo" data-title="Anjono" 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/Ani%C3%B3n" title="Anión – español" lang="es" hreflang="es" data-title="Anión" data-language-autonym="Español" data-language-local-name="español" 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/Anioon" title="Anioon – estoniano" lang="et" hreflang="et" data-title="Anioon" data-language-autonym="Eesti" data-language-local-name="estoniano" 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/Anioi" title="Anioi – éuscaro" lang="eu" hreflang="eu" data-title="Anioi" data-language-autonym="Euskara" data-language-local-name="éuscaro" 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%A2%D9%86%DB%8C%D9%88%D9%86" title="آنیون – persa" lang="fa" hreflang="fa" data-title="آنیون" 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/Anioni" title="Anioni – finés" lang="fi" hreflang="fi" data-title="Anioni" data-language-autonym="Suomi" data-language-local-name="finés" 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/Anion" title="Anion – francés" lang="fr" hreflang="fr" data-title="Anion" data-language-autonym="Français" data-language-local-name="francés" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr badge-Q70894304 mw-list-item" title=""><a href="https://frr.wikipedia.org/wiki/Anion" title="Anion – frisón setentrional" lang="frr" hreflang="frr" data-title="Anion" data-language-autonym="Nordfriisk" data-language-local-name="frisón setentrional" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Ainian" title="Ainian – irlandés" lang="ga" hreflang="ga" data-title="Ainian" data-language-autonym="Gaeilge" data-language-local-name="irlandés" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gv mw-list-item"><a href="https://gv.wikipedia.org/wiki/Aneeane" title="Aneeane – manx" lang="gv" hreflang="gv" data-title="Aneeane" data-language-autonym="Gaelg" data-language-local-name="manx" class="interlanguage-link-target"><span>Gaelg</span></a></li><li class="interlanguage-link interwiki-hr badge-Q70893996 mw-list-item" title=""><a href="https://hr.wikipedia.org/wiki/Anion" title="Anion – croata" lang="hr" hreflang="hr" data-title="Anion" data-language-autonym="Hrvatski" data-language-local-name="croata" 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/Anyon" title="Anyon – crioulo haitiano" lang="ht" hreflang="ht" data-title="Anyon" data-language-autonym="Kreyòl ayisyen" data-language-local-name="crioulo haitiano" 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/Anion" title="Anion – húngaro" lang="hu" hreflang="hu" data-title="Anion" data-language-autonym="Magyar" data-language-local-name="húngaro" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Anione" title="Anione – italiano" lang="it" hreflang="it" data-title="Anione" data-language-autonym="Italiano" data-language-local-name="italiano" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja badge-Q70894304 mw-list-item" title=""><a href="https://ja.wikipedia.org/wiki/%E9%99%B0%E3%82%A4%E3%82%AA%E3%83%B3" title="陰イオン – xaponés" lang="ja" hreflang="ja" data-title="陰イオン" data-language-autonym="日本語" data-language-local-name="xaponés" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%90%E1%83%9C%E1%83%98%E1%83%9D%E1%83%9C%E1%83%98" title="ანიონი – xeorxiano" lang="ka" hreflang="ka" data-title="ანიონი" data-language-autonym="ქართული" data-language-local-name="xeorxiano" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%90%D0%BD%D0%B8%D0%BE%D0%BD" title="Анион – kazako" lang="kk" hreflang="kk" data-title="Анион" data-language-autonym="Қазақша" data-language-local-name="kazako" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Anion" title="Anion – baixo alemán" lang="nds" hreflang="nds" data-title="Anion" data-language-autonym="Plattdüütsch" data-language-local-name="baixo alemán" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Anion" title="Anion – noruegués nynorsk" lang="nn" hreflang="nn" data-title="Anion" data-language-autonym="Norsk nynorsk" data-language-local-name="noruegués 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/Anion" title="Anion – noruegués bokmål" lang="nb" hreflang="nb" data-title="Anion" data-language-autonym="Norsk bokmål" data-language-local-name="noruegués 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/Anion" title="Anion – occitano" lang="oc" hreflang="oc" data-title="Anion" data-language-autonym="Occitan" data-language-local-name="occitano" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Anion" title="Anion – polaco" lang="pl" hreflang="pl" data-title="Anion" data-language-autonym="Polski" data-language-local-name="polaco" 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/%C3%82nion" title="Ânion – portugués" lang="pt" hreflang="pt" data-title="Ânion" data-language-autonym="Português" data-language-local-name="portugués" 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/Anion" title="Anion – romanés" lang="ro" hreflang="ro" data-title="Anion" data-language-autonym="Română" data-language-local-name="romanés" 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%90%D0%BD%D0%B8%D0%BE%D0%BD" title="Анион – ruso" lang="ru" hreflang="ru" data-title="Анион" data-language-autonym="Русский" data-language-local-name="ruso" 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%90%D0%BD%D0%B8%D0%BE%D0%BD" title="Анион – Rusyn" lang="rue" hreflang="rue" data-title="Анион" data-language-autonym="Русиньскый" data-language-local-name="Rusyn" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/%D0%90%D0%BD%D0%B8%D0%BE%D0%BD" title="Анион – iacuto" lang="sah" hreflang="sah" data-title="Анион" data-language-autonym="Саха тыла" data-language-local-name="iacuto" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%87%E0%B6%B1%E0%B7%8F%E0%B6%BA%E0%B6%B1" title="ඇනායන – cingalés" lang="si" hreflang="si" data-title="ඇනායන" data-language-autonym="සිංහල" data-language-local-name="cingalés" 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/Anion" title="Anion – Simple English" lang="en-simple" hreflang="en-simple" data-title="Anion" 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/Ani%C3%B3n" title="Anión – eslovaco" lang="sk" hreflang="sk" data-title="Anión" data-language-autonym="Slovenčina" data-language-local-name="eslovaco" 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/Anion" title="Anion – esloveno" lang="sl" hreflang="sl" data-title="Anion" data-language-autonym="Slovenščina" data-language-local-name="esloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr badge-Q70893996 mw-list-item" title=""><a href="https://sr.wikipedia.org/wiki/%D0%90%D0%BD%D1%98%D0%BE%D0%BD" title="Анјон – serbio" lang="sr" hreflang="sr" data-title="Анјон" data-language-autonym="Српски / srpski" data-language-local-name="serbio" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv badge-Q70893996 mw-list-item" title=""><a href="https://sv.wikipedia.org/wiki/Anjon" title="Anjon – sueco" lang="sv" hreflang="sv" data-title="Anjon" data-language-autonym="Svenska" data-language-local-name="sueco" 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/Anioni" title="Anioni – suahili" lang="sw" hreflang="sw" data-title="Anioni" data-language-autonym="Kiswahili" data-language-local-name="suahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%90%D0%BD%D0%B8%D0%BE%D0%BD" title="Анион – tártaro" lang="tt" hreflang="tt" data-title="Анион" data-language-autonym="Татарча / tatarça" data-language-local-name="tártaro" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%90%D0%BD%D1%96%D0%BE%D0%BD" title="Аніон – ucraíno" lang="uk" hreflang="uk" data-title="Аніон" data-language-autonym="Українська" data-language-local-name="ucraíno" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Anion" title="Anion – uzbeko" lang="uz" hreflang="uz" data-title="Anion" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbeko" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-zh badge-Q70894304 mw-list-item" title=""><a href="https://zh.wikipedia.org/wiki/%E9%98%B4%E7%A6%BB%E5%AD%90" title="阴离子 – chinés" lang="zh" hreflang="zh" data-title="阴离子" data-language-autonym="中文" data-language-local-name="chinés" class="interlanguage-link-target"><span>中文</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/Q107968#sitelinks-wikipedia" title="Editar as ligazóns interlingüísticas" class="wbc-editpage">Editar as ligazóns</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Espazos de nomes"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Ani%C3%B3n" title="Ver o contido da páxina [c]" accesskey="c"><span>Artigo</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a 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un libro</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Especial:DownloadAsPdf&page=Ani%C3%B3n&action=show-download-screen"><span>Descargar como PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Ani%C3%B3n&printable=yes" title="Versión para imprimir da páxina [p]" accesskey="p"><span>Versión para imprimir</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Noutros proxectos </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Anions" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q107968" title="Ligazón ao elemento conectado no repositorio de datos [g]" accesskey="g"><span>Elemento de 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="Ferramentas das páxinas"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aparencia"> <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">Aparencia</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">mover á barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">agochar</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">Na Galipedia, a Wikipedia en galego.</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="gl" dir="ltr"><table class="plainlinks metadata ambox ambox-content" role="presentation"><tbody><tr><td class="mbox-image"><div style="width:52px"><span typeof="mw:File"><span title="Cómpre aumentar as referencias"><img alt="Cómpre aumentar as referencias" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/50px-Question_book-4.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/75px-Question_book-4.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/100px-Question_book-4.svg.png 2x" data-file-width="262" data-file-height="204" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">Este artigo <b>precisa de máis <a href="/wiki/Wikipedia:Citar_as_fontes" title="Wikipedia:Citar as fontes">fontes ou referencias</a></b> que aparezan nunha <a href="/wiki/Wikipedia:Verificabilidade" title="Wikipedia:Verificabilidade">publicación acreditada</a> que poidan verificar o seu contido, como libros ou outras publicacións especializadas no tema. Por favor, axude <a class="external text" href="https://gl.wikipedia.org/w/index.php?title=Ani%C3%B3n&action=edit">mellorando este artigo</a>. <small><i>(Desde xullo de 2017.)</i></small></div></td></tr></tbody></table> <p>Un <b>anión</b><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span>[</span>1<span>]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span>[</span>2<span>]</span></a></sup> é un <a href="/wiki/I%C3%B3n" title="Ión">ión</a> con <a href="/wiki/Carga_el%C3%A9ctrica" title="Carga eléctrica">carga eléctrica</a> negativa. O seu nome provén de que nun campo eléctrico creado por <a href="/wiki/%C3%81nodo" title="Ánodo">ánodo</a> e <a href="/wiki/C%C3%A1todo" title="Cátodo">cátodo</a>, achégase ó ánodo, polo positivo. Entre os anións máis habituais atópanse os formados cando un <a href="/wiki/%C3%81tomo" title="Átomo">átomo</a> dun elemento non metálico gaña un ou máis <a href="/wiki/Electr%C3%B3n" title="Electrón">electróns</a>. </p><p>Así, cando un <a href="/wiki/%C3%81tomo" title="Átomo">átomo</a> de <a href="/wiki/Cloro" title="Cloro">cloro</a> adquire un <a href="/wiki/Electr%C3%B3n" title="Electrón">electrón</a> dá lugar ao anión ou <a href="/w/index.php?title=I%C3%B3n_cloruro&action=edit&redlink=1" class="new" title="Ión cloruro (a páxina aínda non existe)">ión cloruro</a>: </p> <dl><dd>Cl + 1 e<sup>-</sup> → Cl<sup>-</sup>.</dd></dl> <p>Cando un átomo de <a href="/wiki/Xofre" title="Xofre">xofre</a> adquire dous electróns dá lugar ao anión ou <a href="/w/index.php?title=I%C3%B3n_sulfuro&action=edit&redlink=1" class="new" title="Ión sulfuro (a páxina aínda non existe)">ión sulfuro</a>: </p> <dl><dd>S + 2 e<sup>-</sup> → S<sup>2-</sup>.</dd></dl> <p>Cando un átomo de <a href="/wiki/Nitr%C3%B3xeno" title="Nitróxeno">nitróxeno</a> adquire tres electróns dá lugar ao anión ou <a href="/w/index.php?title=I%C3%B3n_nitruro&action=edit&redlink=1" class="new" title="Ión nitruro (a páxina aínda non existe)">ión nitruro</a>: </p> <dl><dd>N + 3 e<sup>-</sup> → N<sup>3-</sup>.</dd></dl> <p>Outras veces o anión, especialmente se é poliatómico, fórmase pola rotura ou disociación dunha molécula. </p><p>Así, a disociación dunha molécula de <a href="/wiki/Cloruro_de_hidr%C3%B3xeno" title="Cloruro de hidróxeno">cloruro de hidróxeno</a> dá lugar ao ión cloruro, xunto cun <a href="/wiki/Prot%C3%B3n" title="Protón">protón</a> ou ión H<sup>+</sup>. </p> <dl><dd>HCl → Cl<sup>-</sup> + H<sup>+</sup></dd></dl> <p>A disociación da molécula de <a href="/wiki/%C3%81cido_sulf%C3%BArico" title="Ácido sulfúrico">ácido sulfúrico</a> dá lugar ao <a href="/w/index.php?title=I%C3%B3n_sulfato&action=edit&redlink=1" class="new" title="Ión sulfato (a páxina aínda non existe)">ión sulfato</a>, SO<sub>4</sub><sup>2-</sup>, xunto con dous protóns: </p> <dl><dd>H<sub>2</sub>SO<sub>4</sub> → SO<sub>4</sub><sup>2-</sup> + 2 H<sup>+</sup></dd></dl> <div class="mw-heading mw-heading2"><h2 id="Anións_diversos"><span id="Ani.C3.B3ns_diversos"></span>Anións diversos</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ani%C3%B3n&veaction=edit&section=1" title="Editar a sección: «Anións diversos»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ani%C3%B3n&action=edit&section=1" title="Editar o código fonte da sección: Anións diversos"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Hidr%C3%B3xido" title="Hidróxido">Hidróxido</a></li> <li><a href="/w/index.php?title=Haloxenuro&action=edit&redlink=1" class="new" title="Haloxenuro (a páxina aínda non existe)">Haloxenuros</a>: <ul><li><a href="/w/index.php?title=Fluoruro&action=edit&redlink=1" class="new" title="Fluoruro (a páxina aínda non existe)">Fluoruro</a></li> <li><a href="/wiki/Cloruro" title="Cloruro">Cloruro</a></li> <li><a href="/w/index.php?title=Bromuro&action=edit&redlink=1" class="new" title="Bromuro (a páxina aínda non existe)">Bromuro</a></li> <li><a href="/wiki/Ioduro" title="Ioduro">Ioduro</a></li></ul></li> <li>Formas <a href="/wiki/Base_(qu%C3%ADmica)" title="Base (química)">básicas</a> de <a href="/wiki/Oxo%C3%A1cido" class="mw-redirect" title="Oxoácido">oxoácidos</a>: <ul><li><a href="/wiki/Nitrato" title="Nitrato">Nitrato</a></li> <li><a href="/wiki/Sulfato" title="Sulfato">Sulfato</a></li> <li><a href="/wiki/Acetato" title="Acetato">Acetato</a></li></ul></li> <li>O <a href="/wiki/%C3%81cido_desoxirribonucleico" title="Ácido desoxirribonucleico">ADN</a> é un anión, así como moitas <a href="/wiki/Prote%C3%ADna" title="Proteína">proteínas</a>.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Notas">Notas</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ani%C3%B3n&veaction=edit&section=2" title="Editar a sección: «Notas»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ani%C3%B3n&action=edit&section=2" title="Editar o código fonte da sección: Notas"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">Definicións no <a rel="nofollow" class="external text" href="http://academia.gal/dicionario/-/termo/ani%C3%B3n"><i>Dicionario da Real Academia Galega</i></a> e no <a rel="nofollow" class="external text" href="http://portaldaspalabras.gal/dicionario/procura/ani%C3%B3n">Portal das Palabras</a> para <i>anión</i>.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="http://bernal.cirp.gal/ords/f?p=121:8:::::P8_IDT:224334">"anión"</a>. <i>TERGAL</i><span class="reference-accessdate">. Consultado o 05/07/2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AAni%C3%B3n&rft.atitle=ani%C3%B3n&rft.genre=unknown&rft.jtitle=TERGAL&rft_id=http%3A%2F%2Fbernal.cirp.gal%2Fords%2Ff%3Fp%3D121%3A8%3A%3A%3A%3A%3AP8_IDT%3A224334&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Véxase_tamén"><span id="V.C3.A9xase_tam.C3.A9n"></span>Véxase tamén</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ani%C3%B3n&veaction=edit&section=3" title="Editar a sección: «Véxase tamén»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ani%C3%B3n&action=edit&section=3" title="Editar o código fonte da sección: Véxase tamén"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/w/index.php?title=Poliani%C3%B3n&action=edit&redlink=1" class="new" title="Polianión (a páxina aínda non existe)">Polianión</a></li> <li><a href="/w/index.php?title=Radical_ani%C3%B3n&action=edit&redlink=1" class="new" title="Radical anión (a páxina aínda non existe)">Radical anión</a></li> <li><a href="/w/index.php?title=Tensoactivo_ani%C3%B3nico&action=edit&redlink=1" class="new" title="Tensoactivo aniónico (a páxina aínda non existe)">Tensoactivo aniónico</a></li> <li><a href="/w/index.php?title=Deterxente_ani%C3%B3nico&action=edit&redlink=1" class="new" title="Deterxente aniónico (a páxina aínda non existe)">Deterxente aniónico</a></li></ul> <div role="navigation" class="navbox" aria-labelledby="Control_de_autoridades" style="padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th id="Control_de_autoridades" scope="row" class="navbox-group" style="width:1%;width: 12%; text-align:center;"><a href="/wiki/Axuda:Control_de_autoridades" title="Axuda:Control de autoridades">Control de autoridades</a></th><td class="navbox-list navbox-odd plainlinks" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><span style="white-space:nowrap;"><span typeof="mw:File"><a href="https://www.wikidata.org/wiki/Wikidata:Main_Page" title="Wikidata"><img alt="Wd" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/20px-Wikidata-logo.svg.png" decoding="async" width="20" height="11" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/30px-Wikidata-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590" /></a></span>: <span class="uid"><a href="https://www.wikidata.org/wiki/Q107968" class="extiw" title="wikidata:Q107968">Q107968</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Art_%26_Architecture_Thesaurus" title="Art & Architecture Thesaurus">AAT</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.getty.edu/vow/AATFullDisplay?find=&logic=AND&note=&subjectid=300264241">300264241</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Biblioteca_Nacional_Central_de_Florencia" title="Biblioteca Nacional Central de Florencia">BNCF</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://thes.bncf.firenze.sbn.it/termine.php?id=47311">47311</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Biblioteca_Nacional_de_Francia" title="Biblioteca Nacional de Francia">BNF</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://catalogue.bnf.fr/ark:/12148/cb119820093">119820093</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Encyclop%C3%A6dia_Britannica" title="Encyclopædia Britannica">EBID</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.britannica.com/science/anion">ID</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Gemeinsame_Normdatei" title="Gemeinsame Normdatei">GND</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://d-nb.info/gnd/4130938-8">4130938-8</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/JSTOR" title="JSTOR">JSTOR</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://web.archive.org/web/*/https://www.jstor.org/topic/anions">anions</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Library_of_Congress_Control_Number" title="Library of Congress Control Number">LCCN</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://id.loc.gov/authorities/sh85005295">sh85005295</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Biblioteca_t%C3%A9cnica_nacional_de_Praga" title="Biblioteca técnica nacional de Praga">PSH</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://psh.techlib.cz/skos/PSH5469">5469</a></span></span></span></li></ul> </div></td></tr></tbody></table></div><div role="navigation" class="navbox" aria-labelledby="Identificadores" style="padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th id="Identificadores" scope="row" class="navbox-group" style="width:1%;width: 12%; text-align:center;">Identificadores</th><td class="navbox-list navbox-odd plainlinks" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><span style="white-space:nowrap;"><a href="/wiki/ChEBI" title="ChEBI">ChEBI</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:22563">22563</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Medical_Subject_Headings" title="Medical Subject Headings">MeSH</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://meshb.nlm.nih.gov/record/ui?ui=D000838">D000838</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Medical_Subject_Headings" title="Medical Subject Headings">MeSH</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://id.nlm.nih.gov/mesh/D01.248.497.158">D01.248.497.158</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Unified_Medical_Language_System" title="Unified Medical Language System">UMLS</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://ncim-stage.nci.nih.gov/ncimbrowser/ConceptReport.jsp?dictionary=NCI%20Metathesaurus&code=C0003075">C0003075</a></span></span></span></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; 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