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</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="Site"> <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="Sommaire" 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">Sommaire</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">déplacer vers la barre latérale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">masquer</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">Début</div> </a> </li> <li id="toc-Définition_et_usages" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Définition_et_usages"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Définition et usages</span> </div> </a> <ul id="toc-Définition_et_usages-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Substitution_d'autres_unités_par_l'électronvolt" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Substitution_d'autres_unités_par_l'électronvolt"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Substitution d'autres unités par l'électronvolt</span> </div> </a> <button aria-controls="toc-Substitution_d'autres_unités_par_l'électronvolt-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>Afficher / masquer la sous-section Substitution d'autres unités par l'électronvolt</span> </button> <ul id="toc-Substitution_d'autres_unités_par_l'électronvolt-sublist" class="vector-toc-list"> <li id="toc-Unité_de_masse" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Unité_de_masse"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Unité de masse</span> </div> </a> <ul id="toc-Unité_de_masse-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Unité_de_quantité_de_mouvement" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Unité_de_quantité_de_mouvement"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Unité de quantité de mouvement</span> </div> </a> <ul id="toc-Unité_de_quantité_de_mouvement-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Unité_de_température" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Unité_de_température"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Unité de température</span> </div> </a> <ul id="toc-Unité_de_température-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Unité_de_temps" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Unité_de_temps"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.4</span> <span>Unité de temps</span> </div> </a> <ul id="toc-Unité_de_temps-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Unité_de_longueur" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Unité_de_longueur"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.5</span> <span>Unité de longueur</span> </div> </a> <ul id="toc-Unité_de_longueur-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Notes_et_références" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Notes_et_références"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Notes et références</span> </div> </a> <button aria-controls="toc-Notes_et_références-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>Afficher / masquer la sous-section Notes et références</span> </button> <ul id="toc-Notes_et_références-sublist" class="vector-toc-list"> <li id="toc-Notes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Notes"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Notes</span> </div> </a> <ul id="toc-Notes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Références" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Références"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Références</span> </div> </a> <ul id="toc-Références-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Voir_aussi" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voir_aussi"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Voir aussi</span> </div> </a> <button aria-controls="toc-Voir_aussi-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>Afficher / masquer la sous-section Voir aussi</span> </button> <ul id="toc-Voir_aussi-sublist" class="vector-toc-list"> <li id="toc-Articles_connexes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Articles_connexes"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Articles connexes</span> </div> </a> <ul id="toc-Articles_connexes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Liens_externes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Liens_externes"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Liens externes</span> </div> </a> <ul id="toc-Liens_externes-sublist" class="vector-toc-list"> </ul> </li> </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="Sommaire" 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="Basculer la table des matières" > <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">Basculer la table des matières</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">Électronvolt</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="Aller à un article dans une autre langue. Disponible en 80 langues." > <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-80" 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">80 langues</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/Elektronvolt" title="Elektronvolt – afrikaans" lang="af" hreflang="af" data-title="Elektronvolt" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Electronvolt" title="Electronvolt – aragonais" lang="an" hreflang="an" data-title="Electronvolt" data-language-autonym="Aragonés" data-language-local-name="aragonais" 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/%D8%A5%D9%84%D9%83%D8%AA%D8%B1%D9%88%D9%86_%D9%81%D9%88%D9%84%D8%AA" title="إلكترون فولت – arabe" lang="ar" hreflang="ar" data-title="إلكترون فولت" data-language-autonym="العربية" data-language-local-name="arabe" 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/Electr%C3%B3n-voltiu" title="Electrón-voltiu – asturien" lang="ast" hreflang="ast" data-title="Electrón-voltiu" data-language-autonym="Asturianu" data-language-local-name="asturien" 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/Elektron_volt" title="Elektron volt – azerbaïdjanais" lang="az" hreflang="az" data-title="Elektron volt" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaïdjanais" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%A7%D9%84%DA%A9%D8%AA%D8%B1%D9%88%D9%86_%D9%88%D9%84%D8%AA" title="الکترون ولت – South Azerbaijani" lang="azb" hreflang="azb" data-title="الکترون ولت" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Elektronenvolt" title="Elektronenvolt – bavarois" lang="bar" hreflang="bar" data-title="Elektronenvolt" data-language-autonym="Boarisch" data-language-local-name="bavarois" 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%AD%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B2%D0%BE%D0%BB%D1%8C%D1%82" title="Электронвольт – biélorusse" lang="be" hreflang="be" data-title="Электронвольт" data-language-autonym="Беларуская" data-language-local-name="biélorusse" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%AD%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B2%D0%BE%D0%BB%D1%8C%D1%82" title="Электронвольт – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Электронвольт" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B2%D0%BE%D0%BB%D1%82" title="Електронволт – bulgare" lang="bg" hreflang="bg" data-title="Електронволт" data-language-autonym="Български" data-language-local-name="bulgare" 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%87%E0%A6%B2%E0%A7%87%E0%A6%95%E0%A6%9F%E0%A7%8D%E0%A6%B0%E0%A6%A8-%E0%A6%AD%E0%A7%8B%E0%A6%B2%E0%A7%8D%E0%A6%9F" title="ইলেকট্রন-ভোল্ট – bengali" lang="bn" hreflang="bn" data-title="ইলেকট্রন-ভোল্ট" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%82%E0%BE%B3%E0%BD%BC%E0%BD%82%E0%BC%8B%E0%BD%A2%E0%BE%A1%E0%BD%B4%E0%BD%A3%E0%BC%8B%E0%BD%9D%E0%BD%BC%E0%BD%A3%E0%BC%8D" title="གློག་རྡུལ་ཝོལ། – tibétain" lang="bo" hreflang="bo" data-title="གློག་རྡུལ་ཝོལ།" data-language-autonym="བོད་ཡིག" data-language-local-name="tibétain" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Elektron-volt" title="Elektron-volt – breton" lang="br" hreflang="br" data-title="Elektron-volt" data-language-autonym="Brezhoneg" data-language-local-name="breton" 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/Elektronvolt" title="Elektronvolt – bosniaque" lang="bs" hreflang="bs" data-title="Elektronvolt" data-language-autonym="Bosanski" data-language-local-name="bosniaque" 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/Electr%C3%B3-volt" title="Electró-volt – catalan" lang="ca" hreflang="ca" data-title="Electró-volt" data-language-autonym="Català" data-language-local-name="catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs badge-Q17437796 badge-featuredarticle mw-list-item" title="article de qualité"><a href="https://cs.wikipedia.org/wiki/Elektronvolt" title="Elektronvolt – tchèque" lang="cs" hreflang="cs" data-title="Elektronvolt" data-language-autonym="Čeština" data-language-local-name="tchèque" 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%AD%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B2%D0%BE%D0%BB%D1%8C%D1%82" title="Электронвольт – tchouvache" lang="cv" hreflang="cv" data-title="Электронвольт" data-language-autonym="Чӑвашла" data-language-local-name="tchouvache" 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/Elektronvolt" title="Elektronvolt – danois" lang="da" hreflang="da" data-title="Elektronvolt" data-language-autonym="Dansk" data-language-local-name="danois" 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/Elektronenvolt" title="Elektronenvolt – allemand" lang="de" hreflang="de" data-title="Elektronenvolt" data-language-autonym="Deutsch" data-language-local-name="allemand" 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%97%CE%BB%CE%B5%CE%BA%CF%84%CF%81%CE%BF%CE%BD%CE%B9%CE%BF%CE%B2%CF%8C%CE%BB%CF%84" title="Ηλεκτρονιοβόλτ – grec" lang="el" hreflang="el" data-title="Ηλεκτρονιοβόλτ" 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/Electronvolt" title="Electronvolt – anglais" lang="en" hreflang="en" data-title="Electronvolt" data-language-autonym="English" data-language-local-name="anglais" 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/Elektronvolto" title="Elektronvolto – espéranto" lang="eo" hreflang="eo" data-title="Elektronvolto" data-language-autonym="Esperanto" data-language-local-name="espéranto" 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/Electronvoltio" title="Electronvoltio – espagnol" lang="es" hreflang="es" data-title="Electronvoltio" data-language-autonym="Español" data-language-local-name="espagnol" 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/Elektronvolt" title="Elektronvolt – estonien" lang="et" hreflang="et" data-title="Elektronvolt" data-language-autonym="Eesti" data-language-local-name="estonien" 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/Elektronvolt" title="Elektronvolt – basque" lang="eu" hreflang="eu" data-title="Elektronvolt" data-language-autonym="Euskara" data-language-local-name="basque" 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%A7%D9%84%DA%A9%D8%AA%D8%B1%D9%88%D9%86%E2%80%8C%D9%88%D9%84%D8%AA" title="الکترون‌ولت – persan" lang="fa" hreflang="fa" data-title="الکترون‌ولت" data-language-autonym="فارسی" data-language-local-name="persan" 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/Elektronivoltti" title="Elektronivoltti – finnois" lang="fi" hreflang="fi" data-title="Elektronivoltti" data-language-autonym="Suomi" data-language-local-name="finnois" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-frr badge-Q70894304 mw-list-item" title=""><a href="https://frr.wikipedia.org/wiki/Elektronenvolt" title="Elektronenvolt – frison septentrional" lang="frr" hreflang="frr" data-title="Elektronenvolt" data-language-autonym="Nordfriisk" data-language-local-name="frison septentrional" 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/Leictreonvolta" title="Leictreonvolta – irlandais" lang="ga" hreflang="ga" data-title="Leictreonvolta" data-language-autonym="Gaeilge" data-language-local-name="irlandais" 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/Electr%C3%B3n-volt" title="Electrón-volt – galicien" lang="gl" hreflang="gl" data-title="Electrón-volt" data-language-autonym="Galego" data-language-local-name="galicien" 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%88%E0%AA%B2%E0%AB%87%E0%AA%95%E0%AB%8D%E0%AA%9F%E0%AB%8D%E0%AA%B0%E0%AB%8B%E0%AA%A8_%E0%AA%B5%E0%AB%8B%E0%AA%B2%E0%AB%8D%E0%AA%9F" title="ઈલેક્ટ્રોન વોલ્ટ – goudjarati" lang="gu" hreflang="gu" data-title="ઈલેક્ટ્રોન વોલ્ટ" data-language-autonym="ગુજરાતી" data-language-local-name="goudjarati" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%90%D7%9C%D7%A7%D7%98%D7%A8%D7%95%D7%9F_%D7%95%D7%95%D7%9C%D7%98" title="אלקטרון וולט – hébreu" lang="he" hreflang="he" data-title="אלקטרון וולט" data-language-autonym="עברית" data-language-local-name="hébreu" 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%87%E0%A4%B2%E0%A5%87%E0%A4%95%E0%A5%8D%E0%A4%9F%E0%A5%8D%E0%A4%B0%E0%A5%89%E0%A4%A8_%E0%A4%B5%E0%A5%8B%E0%A4%B2%E0%A5%8D%E0%A4%9F" title="इलेक्ट्रॉन वोल्ट – hindi" lang="hi" hreflang="hi" data-title="इलेक्ट्रॉन वोल्ट" 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/Elektronvolt" title="Elektronvolt – croate" lang="hr" hreflang="hr" data-title="Elektronvolt" data-language-autonym="Hrvatski" data-language-local-name="croate" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Elektronvolt" title="Elektronvolt – hongrois" lang="hu" hreflang="hu" data-title="Elektronvolt" data-language-autonym="Magyar" data-language-local-name="hongrois" 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%B7%D5%AC%D5%A5%D5%AF%D5%BF%D6%80%D5%B8%D5%B6-%D5%BE%D5%B8%D5%AC%D5%BF" title="Էլեկտրոն-վոլտ – arménien" lang="hy" hreflang="hy" data-title="Էլեկտրոն-վոլտ" data-language-autonym="Հայերեն" data-language-local-name="arménien" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Elektronvolt" title="Elektronvolt – indonésien" lang="id" hreflang="id" data-title="Elektronvolt" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonésien" 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/Rafeindarvolt" title="Rafeindarvolt – islandais" lang="is" hreflang="is" data-title="Rafeindarvolt" data-language-autonym="Íslenska" data-language-local-name="islandais" 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/Elettronvolt" title="Elettronvolt – italien" lang="it" hreflang="it" data-title="Elettronvolt" data-language-autonym="Italiano" data-language-local-name="italien" 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/%E9%9B%BB%E5%AD%90%E3%83%9C%E3%83%AB%E3%83%88" title="電子ボルト – japonais" lang="ja" hreflang="ja" data-title="電子ボルト" data-language-autonym="日本語" data-language-local-name="japonais" 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%94%E1%83%9A%E1%83%94%E1%83%A5%E1%83%A2%E1%83%A0%E1%83%9D%E1%83%9C%E1%83%95%E1%83%9D%E1%83%9A%E1%83%A2%E1%83%98" title="ელექტრონვოლტი – géorgien" lang="ka" hreflang="ka" data-title="ელექტრონვოლტი" data-language-autonym="ქართული" data-language-local-name="géorgien" 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%AD%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B2%D0%BE%D0%BB%D1%8C%D1%82" title="Электронвольт – kazakh" lang="kk" hreflang="kk" data-title="Электронвольт" data-language-autonym="Қазақша" data-language-local-name="kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A0%84%EC%9E%90%EB%B3%BC%ED%8A%B8" title="전자볼트 – coréen" lang="ko" hreflang="ko" data-title="전자볼트" data-language-autonym="한국어" data-language-local-name="coréen" 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/Electronvoltium" title="Electronvoltium – latin" lang="la" hreflang="la" data-title="Electronvoltium" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Elektronvolt" title="Elektronvolt – limbourgeois" lang="li" hreflang="li" data-title="Elektronvolt" data-language-autonym="Limburgs" data-language-local-name="limbourgeois" 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/Elettron-volt" title="Elettron-volt – ligure" lang="lij" hreflang="lij" data-title="Elettron-volt" data-language-autonym="Ligure" data-language-local-name="ligure" class="interlanguage-link-target"><span>Ligure</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Elektronvoltas" title="Elektronvoltas – lituanien" lang="lt" hreflang="lt" data-title="Elektronvoltas" data-language-autonym="Lietuvių" data-language-local-name="lituanien" 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/Elektronvolts" title="Elektronvolts – letton" lang="lv" hreflang="lv" data-title="Elektronvolts" data-language-autonym="Latviešu" data-language-local-name="letton" 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%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B2%D0%BE%D0%BB%D1%82" title="Електронволт – macédonien" lang="mk" hreflang="mk" data-title="Електронволт" data-language-autonym="Македонски" data-language-local-name="macédonien" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%87%E0%A4%B2%E0%A5%87%E0%A4%95%E0%A5%8D%E0%A4%9F%E0%A5%8D%E0%A4%B0%E0%A5%89%E0%A4%A8%E0%A4%B5%E0%A5%8D%E0%A4%B9%E0%A5%8B%E0%A4%B2%E0%A5%8D%E0%A4%9F" title="इलेक्ट्रॉनव्होल्ट – marathi" lang="mr" hreflang="mr" data-title="इलेक्ट्रॉनव्होल्ट" 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/Elektronvolt" title="Elektronvolt – malais" lang="ms" hreflang="ms" data-title="Elektronvolt" data-language-autonym="Bahasa Melayu" data-language-local-name="malais" 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/Elektronvolt" title="Elektronvolt – bas-allemand" lang="nds" hreflang="nds" data-title="Elektronvolt" data-language-autonym="Plattdüütsch" data-language-local-name="bas-allemand" 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/Elektronvolt" title="Elektronvolt – néerlandais" lang="nl" hreflang="nl" data-title="Elektronvolt" data-language-autonym="Nederlands" data-language-local-name="néerlandais" 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/Elektronvolt" title="Elektronvolt – norvégien nynorsk" lang="nn" hreflang="nn" data-title="Elektronvolt" data-language-autonym="Norsk nynorsk" data-language-local-name="norvégien 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/Elektronvolt" title="Elektronvolt – norvégien bokmål" lang="nb" hreflang="nb" data-title="Elektronvolt" data-language-autonym="Norsk bokmål" data-language-local-name="norvégien 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/Electronvolt" title="Electronvolt – occitan" lang="oc" hreflang="oc" data-title="Electronvolt" data-language-autonym="Occitan" data-language-local-name="occitan" 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/Elektronowolt" title="Elektronowolt – polonais" lang="pl" hreflang="pl" data-title="Elektronowolt" data-language-autonym="Polski" data-language-local-name="polonais" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Eletronv%C3%B2lt" title="Eletronvòlt – piémontais" lang="pms" hreflang="pms" data-title="Eletronvòlt" data-language-autonym="Piemontèis" data-language-local-name="piémontais" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%A7%D9%84%DB%8C%DA%A9%D9%B9%D8%B1%D9%88%D9%86_%D9%88%D9%88%D9%84%D9%B9" title="الیکٹرون وولٹ – Western Punjabi" lang="pnb" hreflang="pnb" data-title="الیکٹرون وولٹ" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/El%C3%A9tron-volt" title="Elétron-volt – portugais" lang="pt" hreflang="pt" data-title="Elétron-volt" data-language-autonym="Português" data-language-local-name="portugais" 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/Electronvolt" title="Electronvolt – roumain" lang="ro" hreflang="ro" data-title="Electronvolt" data-language-autonym="Română" data-language-local-name="roumain" 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%AD%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B2%D0%BE%D0%BB%D1%8C%D1%82" title="Электронвольт – russe" lang="ru" hreflang="ru" data-title="Электронвольт" data-language-autonym="Русский" data-language-local-name="russe" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Elettronvolt" title="Elettronvolt – sicilien" lang="scn" hreflang="scn" data-title="Elettronvolt" data-language-autonym="Sicilianu" data-language-local-name="sicilien" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Elektronvolt" title="Elektronvolt – serbo-croate" lang="sh" hreflang="sh" data-title="Elektronvolt" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croate" 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/Electronvolt" title="Electronvolt – Simple English" lang="en-simple" hreflang="en-simple" data-title="Electronvolt" 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/Elektr%C3%B3nvolt" title="Elektrónvolt – slovaque" lang="sk" hreflang="sk" data-title="Elektrónvolt" data-language-autonym="Slovenčina" data-language-local-name="slovaque" 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/Elektronvolt" title="Elektronvolt – slovène" lang="sl" hreflang="sl" data-title="Elektronvolt" data-language-autonym="Slovenščina" data-language-local-name="slovène" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Elektronvolti" title="Elektronvolti – albanais" lang="sq" hreflang="sq" data-title="Elektronvolti" data-language-autonym="Shqip" data-language-local-name="albanais" 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%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B2%D0%BE%D0%BB%D1%82" title="Електронволт – serbe" lang="sr" hreflang="sr" data-title="Електронволт" data-language-autonym="Српски / srpski" data-language-local-name="serbe" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Elektronvolt" title="Elektronvolt – suédois" lang="sv" hreflang="sv" data-title="Elektronvolt" data-language-autonym="Svenska" data-language-local-name="suédois" 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%87%E0%AE%B2%E0%AE%A4%E0%AF%8D%E0%AE%A4%E0%AE%BF%E0%AE%B0%E0%AE%A9%E0%AF%8D%E0%AE%B5%E0%AF%8B%E0%AE%B2%E0%AF%8D%E0%AE%9F%E0%AF%8D" title="இலத்திரன்வோல்ட் – tamoul" lang="ta" hreflang="ta" data-title="இலத்திரன்வோல்ட்" data-language-autonym="தமிழ்" data-language-local-name="tamoul" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AD%E0%B8%B4%E0%B9%80%E0%B8%A5%E0%B9%87%E0%B8%81%E0%B8%95%E0%B8%A3%E0%B8%AD%E0%B8%99%E0%B9%82%E0%B8%A7%E0%B8%A5%E0%B8%95%E0%B9%8C" title="อิเล็กตรอนโวลต์ – thaï" lang="th" hreflang="th" data-title="อิเล็กตรอนโวลต์" data-language-autonym="ไทย" data-language-local-name="thaï" 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/Elektronvolt" title="Elektronvolt – turc" lang="tr" hreflang="tr" data-title="Elektronvolt" 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%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B2%D0%BE%D0%BB%D1%8C%D1%82" title="Електронвольт – ukrainien" lang="uk" hreflang="uk" data-title="Електронвольт" data-language-autonym="Українська" data-language-local-name="ukrainien" 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%A7%D9%84%DB%8C%DA%A9%D9%B9%D8%B1%D9%88%D9%86_%D9%88%D9%88%D9%84%D9%B9" title="الیکٹرون وولٹ – ourdou" lang="ur" hreflang="ur" data-title="الیکٹرون وولٹ" data-language-autonym="اردو" data-language-local-name="ourdou" 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/Elektronvolt" title="Elektronvolt – ouzbek" lang="uz" hreflang="uz" data-title="Elektronvolt" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="ouzbek" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Electronvolt" title="Electronvolt – vietnamien" lang="vi" hreflang="vi" data-title="Electronvolt" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamien" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%94%B5%E5%AD%90%E4%BC%8F%E7%89%B9" title="电子伏特 – wu" lang="wuu" hreflang="wuu" data-title="电子伏特" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%9B%BB%E5%AD%90%E4%BC%8F%E7%89%B9" title="電子伏特 – chinois" lang="zh" hreflang="zh" data-title="電子伏特" data-language-autonym="中文" data-language-local-name="chinois" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E9%9B%BB%E5%AD%90%E4%BC%8F%E7%89%B9" title="電子伏特 – cantonais" lang="yue" hreflang="yue" data-title="電子伏特" data-language-autonym="粵語" data-language-local-name="cantonais" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q83327#sitelinks-wikipedia" title="Modifier les liens interlangues" class="wbc-editpage">Modifier les liens</a></span></div> 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typeof="mw:File"><a href="/wiki/Aide:Redirection" title="Aide:Redirection"><img alt="Page d’aide sur les redirections" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Arrows-move.svg/20px-Arrows-move.svg.png" decoding="async" width="20" height="8" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Arrows-move.svg/30px-Arrows-move.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/59/Arrows-move.svg/40px-Arrows-move.svg.png 2x" data-file-width="225" data-file-height="88" /></a></span></div><div class="bandeau-cell" style="display:table-cell;padding-right:0.5em"> <p>« MeV » et « meV » redirigent ici. Pour le sigle, voir <a href="/wiki/MEV" class="mw-disambig" title="MEV">MEV</a>. </p> </div></div> <p>En <a href="/wiki/Physique" title="Physique">physique</a> et en <a href="/wiki/Chimie" title="Chimie">chimie</a>, l'<b>électronvolt</b> ou <b>électron-volt</b> (au pluriel électronvolts ou électrons-volts)<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite_crochet">[</span>1<span class="cite_crochet">]</span></a></sup>, de symbole <abbr class="abbr" title="électron-volt">eV</abbr>, est une <a href="/wiki/Unit%C3%A9_d%27%C3%A9nergie" title="Unité d'énergie">unité d'énergie</a> et par <a href="/wiki/Ellipse_(rh%C3%A9torique)" title="Ellipse (rhétorique)">ellipse</a>, dans certaines branches de la <a href="/wiki/Physique" title="Physique">physique</a>, d'autres <a href="/wiki/Grandeur_physique" title="Grandeur physique">grandeurs physiques</a> comme la <a href="/wiki/Masse" title="Masse">masse</a> et la <a href="/wiki/Temp%C3%A9rature_thermodynamique" title="Température thermodynamique">température</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Définition_et_usages"><span id="D.C3.A9finition_et_usages"></span>Définition et usages</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=1" title="Modifier la section : Définition et usages" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=1" title="Modifier le code source de la section : Définition et usages"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La valeur de l’électronvolt est définie comme étant l'<a href="/wiki/%C3%89nergie_cin%C3%A9tique" title="Énergie cinétique">énergie cinétique</a> acquise par un <a href="/wiki/%C3%89lectron" title="Électron">électron</a> accéléré depuis le repos par une <a href="/wiki/Potentiel_%C3%A9lectrique" title="Potentiel électrique">différence de potentiel</a> d'un <a href="/wiki/Volt" title="Volt">volt</a> : <span title="1,602 176 × 10⁻¹⁹ J ou 96,485 3 kJ/mol ou 1 239,8 nm" style="cursor:help">1</span> <abbr class="abbr" title="électron-volt">eV</abbr> = (1 <abbr class="abbr" title="''e''"><a href="/wiki/Charge_%C3%A9l%C3%A9mentaire" title="Charge élémentaire"><i>e</i></a></abbr>) × (1 <abbr class="abbr" title="volt"><a href="/wiki/Volt" title="Volt">V</a></abbr>), où <i>e</i> désigne la <a href="/wiki/Valeur_absolue" title="Valeur absolue">valeur absolue</a> de la charge électrique de l'électron (ou <a href="/wiki/Charge_%C3%A9l%C3%A9mentaire" title="Charge élémentaire">charge élémentaire</a>). Un électronvolt est égal à<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite_crochet">[</span>2<span class="cite_crochet">]</span></a></sup> : </p> <dl><dd>1 eV = 1,602 176 634 × 10<sup>−19</sup> <abbr class="abbr" title="joule"><a href="/wiki/Joule" title="Joule">J</a></abbr>.</dd></dl> <p>C'est une unité hors <a href="/wiki/Syst%C3%A8me_international_d%27unit%C3%A9s" title="Système international d'unités">Système international d'unités</a> (SI), mais <a href="/wiki/Unit%C3%A9_en_dehors_du_SI_dont_l%27usage_est_accept%C3%A9_avec_le_SI" title="Unité en dehors du SI dont l'usage est accepté avec le SI">son usage est accepté avec lui</a>. Sa valeur est obtenue expérimentalement. </p> <dl><dd><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 1\;\mathrm {eV} ={\sqrt {\frac {2h\alpha }{\mu _{0}c}}}\;\mathrm {J/C} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>1</mn> <mspace width="thickmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">V</mi> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <msqrt> <mfrac> <mrow> <mn>2</mn> <mi>h</mi> <mi>α</mi> </mrow> <mrow> <msub> <mi>μ</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </msub> <mi>c</mi> </mrow> </mfrac> </msqrt> </mrow> <mspace width="thickmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">J</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <mi mathvariant="normal">C</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 1\;\mathrm {eV} ={\sqrt {\frac {2h\alpha }{\mu _{0}c}}}\;\mathrm {J/C} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/92fa23524c766998a52bfb5de7efba13680368e0" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -3.171ex; width:19.511ex; height:7.509ex;" alt="{\displaystyle 1\;\mathrm {eV} ={\sqrt {\frac {2h\alpha }{\mu _{0}c}}}\;\mathrm {J/C} }"></span></dd></dl> <p>où : </p> <dl><dd><i>h</i> = 6,626 070 15 × 10<sup>−34</sup> <abbr class="abbr" title="joule seconde">J s</abbr> est la <a href="/wiki/Constante_de_Planck" title="Constante de Planck">constante de Planck</a> ;</dd> <dd><i>α</i> = 7,297 352 566 4(17) × 10<sup>−3</sup> (<a href="/wiki/Grandeur_sans_dimension" title="Grandeur sans dimension">sans dimension</a>) est la <a href="/wiki/Constante_de_structure_fine" title="Constante de structure fine">constante de structure fine</a> ;</dd> <dd><i>μ</i><sub>0</sub> = 4π × 10<sup>−7</sup> <abbr class="abbr" title="H par mètre"><a href="/wiki/Henry_(unit%C3%A9)" title="Henry (unité)">H</a>/m</abbr> est la <a href="/wiki/Perm%C3%A9abilit%C3%A9_magn%C3%A9tique" title="Perméabilité magnétique">perméabilité magnétique</a> du <a href="/wiki/Vide_(physique)" title="Vide (physique)">vide</a> ;</dd> <dd><i>c</i> = <span title="1 079 252 848,8 km/h" style="cursor:help">2,997 924 58</span> × 10<sup>8</sup> <abbr class="abbr" title="mètre par seconde">m/s</abbr> est la <a href="/wiki/Vitesse_de_la_lumi%C3%A8re" title="Vitesse de la lumière">vitesse de la lumière</a> dans le vide ;</dd> <dd>J est le symbole du <a href="/wiki/Joule" title="Joule">joule</a> ;</dd> <dd>C est le symbole du <a href="/wiki/Coulomb" title="Coulomb">coulomb</a>.</dd></dl> <p>On utilise l'électronvolt notamment en <a href="/wiki/Physique_des_particules" title="Physique des particules">physique des particules</a> pour exprimer les <a href="/wiki/Niveau_d%27%C3%A9nergie" title="Niveau d'énergie">niveaux d'énergie</a> rencontrés dans les accélérateurs de particules et la <a href="/wiki/Fusion_nucl%C3%A9aire" title="Fusion nucléaire">fusion thermonucléaire</a>, en physique des <a href="/wiki/Semi-conducteur" title="Semi-conducteur">semi-conducteurs</a> pour exprimer le <a href="/wiki/Bande_interdite" title="Bande interdite">gap</a> de ceux-ci ou en physique des plasmas : </p><p><b><a href="/wiki/Pr%C3%A9fixes_du_Syst%C3%A8me_international_d%27unit%C3%A9s" title="Préfixes du Système international d'unités">Sous-multiple et multiples usuels</a> :</b> </p> <ul><li>1 meV = 10<sup>−3</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 1,602 177 × 10<sup>−22</sup> <abbr class="abbr" title="joule">J</abbr></li> <li>1 keV = 10<sup>3</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 1,602 177 × 10<sup>−16</sup> <abbr class="abbr" title="joule">J</abbr></li> <li>1 MeV = 10<sup>6</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 1,602 177 × 10<sup>−13</sup> <abbr class="abbr" title="joule">J</abbr></li> <li>1 GeV = 10<sup>9</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 1,602 177 × 10<sup>−10</sup> <abbr class="abbr" title="joule">J</abbr></li> <li>1 TeV = 10<sup>12</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 1,602 177 × 10<sup>−7</sup> <abbr class="abbr" title="joule">J</abbr></li></ul> <p><b><a href="/wiki/Pr%C3%A9fixes_du_syst%C3%A8me_international_d%27unit%C3%A9s" class="mw-redirect" title="Préfixes du système international d'unités">Autres multiples</a> :</b> </p> <ul><li>1 PeV = 10<sup>15</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 1,602 177 × 10<sup>−4</sup> <abbr class="abbr" title="joule">J</abbr></li> <li>1 EeV = 10<sup>18</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 0,160 217 7 <abbr class="abbr" title="joule">J</abbr></li> <li>1 ZeV = 10<sup>21</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 160,217 7 <abbr class="abbr" title="joule">J</abbr></li> <li>1 YeV = 10<sup>24</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 1,602 177 × 10<sup>5</sup> <abbr class="abbr" title="joule">J</abbr> = 0,044 504 9 <abbr class="abbr" title="kilowatt-heure">kWh</abbr></li> <li>1 ReV = 10<sup>27</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 1,602 177 × 10<sup>8</sup> <abbr class="abbr" title="joule">J</abbr> = 44,504 9 <abbr class="abbr" title="kilowatt-heure">kWh</abbr></li> <li>1 QeV = 10<sup>30</sup> <abbr class="abbr" title="électron-volt">eV</abbr> = 1,602 177 × 10<sup>11</sup> <abbr class="abbr" title="joule">J</abbr> = 44 504,9 <abbr class="abbr" title="kilowatt-heure">kWh</abbr></li></ul> <p>Dans certains documents relativement anciens, on peut voir la notation « BeV », pour <span class="lang-en italique" lang="en">billion electronvolt</span> (<span class="citation">« milliard d'électronvolts »</span>) : le BeV équivaut au GeV (gigaélectronvolt). </p><p>En chimie, certaines mesures d'énergie spécifiques, en particulier le <a href="/wiki/Potentiel_%C3%A9lectrochimique" title="Potentiel électrochimique">potentiel électrochimique</a>, le potentiel d'extraction des éléments, l'<a href="/wiki/%C3%89nergie_d%27ionisation" title="Énergie d'ionisation">énergie d'ionisation</a> des atomes gazeux ou autres molécules en <a href="/wiki/Atomistique" title="Atomistique">atomistique</a>, l'<a href="/wiki/%C3%89nergie_thermique" title="Énergie thermique">énergie thermique</a> des molécules, sont assez souvent exprimées en <abbr class="abbr" title="électron-volt">eV</abbr><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite_crochet">[</span>note 1<span class="cite_crochet">]</span></a></sup>. </p> <dl><dd>1 eV = 96,485 <a href="/wiki/Kilojoule_par_mole" class="mw-redirect" title="Kilojoule par mole">kJ/mol</a> ou 23,06 <abbr class="abbr" title="kilocalorie par mole">kcal/mol</abbr></dd></dl> <div class="mw-heading mw-heading2"><h2 id="Substitution_d'autres_unités_par_l'électronvolt"><span id="Substitution_d.27autres_unit.C3.A9s_par_l.27.C3.A9lectronvolt"></span>Substitution d'autres unités par l'électronvolt</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=2" title="Modifier la section : Substitution d'autres unités par l'électronvolt" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=2" title="Modifier le code source de la section : Substitution d'autres unités par l'électronvolt"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Unité_de_masse"><span id="Unit.C3.A9_de_masse"></span>Unité de masse</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=3" title="Modifier la section : Unité de masse" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=3" title="Modifier le code source de la section : Unité de masse"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>De la relation d'<a href="/wiki/Albert_Einstein" title="Albert Einstein">Einstein</a> <a href="/wiki/E%3Dmc2" title="E=mc2"><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 E=m\,c^{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>E</mi> <mo>=</mo> <mi>m</mi> <mspace width="thinmathspace" /> <msup> <mi>c</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle E=m\,c^{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/cc54e0e584cb5aa5d15e95537d2ea2f64a905a34" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:9.363ex; height:2.676ex;" alt="{\displaystyle E=m\,c^{2}}"></span></a>, on déduit : </p> <dl><dd><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 {\frac {1\;\mathrm {eV} }{c^{2}}}={\rm {{\frac {1{,}602\,176\,634\times 10^{-19}\;J}{(299\,792\,458\;m/s)^{2}}}=1{,}783\times 10^{-36}\;J\;s^{2}\;m^{-2}=1{,}783\times 10^{-36}\;kg}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>1</mn> <mspace width="thickmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">V</mi> </mrow> </mrow> <msup> <mi>c</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>1,602</mn> <mspace width="thinmathspace" /> <mn>176</mn> <mspace width="thinmathspace" /> <mn>634</mn> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>19</mn> </mrow> </msup> <mspace width="thickmathspace" /> <mi mathvariant="normal">J</mi> </mrow> <mrow> <mo stretchy="false">(</mo> <mn>299</mn> <mspace width="thinmathspace" /> <mn>792</mn> <mspace width="thinmathspace" /> <mn>458</mn> <mspace width="thickmathspace" /> <mi mathvariant="normal">m</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <mi mathvariant="normal">s</mi> <msup> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> </mfrac> </mrow> <mo>=</mo> <mn>1,783</mn> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>36</mn> </mrow> </msup> <mspace width="thickmathspace" /> <mi mathvariant="normal">J</mi> <mspace width="thickmathspace" /> <msup> <mi mathvariant="normal">s</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mspace width="thickmathspace" /> <msup> <mi mathvariant="normal">m</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>2</mn> </mrow> </msup> <mo>=</mo> <mn>1,783</mn> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>36</mn> </mrow> </msup> <mspace width="thickmathspace" /> <mi mathvariant="normal">k</mi> <mi mathvariant="normal">g</mi> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\frac {1\;\mathrm {eV} }{c^{2}}}={\rm {{\frac {1{,}602\,176\,634\times 10^{-19}\;J}{(299\,792\,458\;m/s)^{2}}}=1{,}783\times 10^{-36}\;J\;s^{2}\;m^{-2}=1{,}783\times 10^{-36}\;kg}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/5713e256aabd5ae0f0aaefdbc9a238c1893b9ee0" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.671ex; width:78.395ex; height:6.676ex;" alt="{\displaystyle {\frac {1\;\mathrm {eV} }{c^{2}}}={\rm {{\frac {1{,}602\,176\,634\times 10^{-19}\;J}{(299\,792\,458\;m/s)^{2}}}=1{,}783\times 10^{-36}\;J\;s^{2}\;m^{-2}=1{,}783\times 10^{-36}\;kg}}}"></span></dd></dl> <p>Par exemple, la masse de l'<a href="/wiki/%C3%89lectron" title="Électron">électron</a> est de <span title="8,187 119 × 10⁻¹⁴ J ou 49 303 988,3 kJ/mol ou 633 537 800 nm" style="cursor:help">511</span> <abbr class="abbr" title="kiloélectron-volt">keV</abbr>/<i>c</i><sup>2</sup>, celle du <a href="/wiki/Proton" title="Proton">proton</a> de <span title="1,502 841 × 10⁻¹⁰ J ou 90 503 211 400 kJ/mol ou 1 162 932 400 000 nm" style="cursor:help">938</span> <abbr class="abbr" title="mégaélectron-volt">MeV</abbr>/<i>c</i><sup>2</sup> et celle du <a href="/wiki/Neutron" title="Neutron">neutron</a> est de <span title="1,506 045 × 10⁻¹⁰ J ou 90 696 182 000 kJ/mol ou 1 165 412 000 000 nm" style="cursor:help">940</span> <abbr class="abbr" title="mégaélectron-volt">MeV</abbr>/<i>c</i><sup>2</sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite_crochet">[</span>3<span class="cite_crochet">]</span></a></sup>. </p><p>Dans le <a href="/wiki/Syst%C3%A8me_d%27unit%C3%A9s_naturelles" title="Système d'unités naturelles">système d'unités naturelles</a> souvent utilisé par les physiciens des particules, dans lequel on pose <i>c</i> = 1, on omet d'écrire le « /<i>c</i><sup>2</sup> ». </p> <div class="mw-heading mw-heading3"><h3 id="Unité_de_quantité_de_mouvement"><span id="Unit.C3.A9_de_quantit.C3.A9_de_mouvement"></span>Unité de quantité de mouvement</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=4" title="Modifier la section : Unité de quantité de mouvement" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=4" title="Modifier le code source de la section : Unité de quantité de mouvement"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Suivant le raisonnement précédent, on peut également utiliser l'électronvolt comme unité de <a href="/wiki/Quantit%C3%A9_de_mouvement" title="Quantité de mouvement">quantité de mouvement</a>, en eV/<i>c</i>. Là encore, le <a href="/wiki/Syst%C3%A8me_d%27unit%C3%A9s_naturelles" title="Système d'unités naturelles">système d'unités naturelles</a> permet d'écrire directement cette quantité de mouvement en <abbr class="abbr" title="électron-volt">eV</abbr>, soit en général en <abbr class="abbr" title="gigaélectron-volt">GeV</abbr> ou en <abbr class="abbr" title="téraélectron-volt">TeV</abbr>. </p> <div class="mw-heading mw-heading3"><h3 id="Unité_de_température"><span id="Unit.C3.A9_de_temp.C3.A9rature"></span>Unité de température</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=5" title="Modifier la section : Unité de température" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=5" title="Modifier le code source de la section : Unité de température"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Dans certains domaines, comme la <a href="/wiki/Physique_des_plasmas" title="Physique des plasmas">physique des plasmas</a>, il peut être pratique d'utiliser l'électronvolt comme unité de température. Pour effectuer la conversion, on utilise la <a href="/wiki/Constante_de_Boltzmann" title="Constante de Boltzmann">constante de Boltzmann</a> <i>k</i><sub>B</sub>. </p> <dl><dd><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 {\frac {1\;\mathrm {eV} }{k_{\mathrm {B} }}}={\rm {{\frac {1{,}602\,176\,634\times 10^{-19}\;J}{1{,}380\,649\times 10^{-23}\;J/K}}=11\,605\;K}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>1</mn> <mspace width="thickmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">V</mi> </mrow> </mrow> <msub> <mi>k</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">B</mi> </mrow> </mrow> </msub> </mfrac> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>1,602</mn> <mspace width="thinmathspace" /> <mn>176</mn> <mspace width="thinmathspace" /> <mn>634</mn> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>19</mn> </mrow> </msup> <mspace width="thickmathspace" /> <mi mathvariant="normal">J</mi> </mrow> <mrow> <mn>1,380</mn> <mspace width="thinmathspace" /> <mn>649</mn> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>23</mn> </mrow> </msup> <mspace width="thickmathspace" /> <mi mathvariant="normal">J</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <mi mathvariant="normal">K</mi> </mrow> </mfrac> </mrow> <mo>=</mo> <mn>11</mn> <mspace width="thinmathspace" /> <mn>605</mn> <mspace width="thickmathspace" /> <mi mathvariant="normal">K</mi> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\frac {1\;\mathrm {eV} }{k_{\mathrm {B} }}}={\rm {{\frac {1{,}602\,176\,634\times 10^{-19}\;J}{1{,}380\,649\times 10^{-23}\;J/K}}=11\,605\;K}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/178c3ee97c8ab6c889401bd51c06c925a14a4e5e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.838ex; width:44.311ex; height:6.843ex;" alt="{\displaystyle {\frac {1\;\mathrm {eV} }{k_{\mathrm {B} }}}={\rm {{\frac {1{,}602\,176\,634\times 10^{-19}\;J}{1{,}380\,649\times 10^{-23}\;J/K}}=11\,605\;K}}}"></span></dd></dl> <p>Par exemple, une température typique de plasma dans une <a href="/wiki/Fusion_par_confinement_magn%C3%A9tique" title="Fusion par confinement magnétique">fusion par confinement magnétique</a> est de <span title="2,403 264 × 10⁻¹⁵ J ou 1 447 279,5 kJ/mol ou 18 597 000 nm" style="cursor:help">15</span> <abbr class="abbr" title="kiloélectron-volt">keV</abbr>, soit <span title="173 999 726,85 °C ou 313 199 540,33 °F" style="cursor:help">174</span> <abbr class="abbr" title="mégakelvin">MK</abbr> (<a href="/wiki/Kelvin" title="Kelvin">mégakelvins</a>). La température ambiante (~<span title="68 °F ou 293,2 K">20 </span><abbr class="abbr" title="degré Celsius">°C</abbr>) correspond à 1/40 d'électronvolt (<span title="4,005 44 × 10⁻²¹ J ou 2,412 133 kJ/mol ou 30,995 nm" style="cursor:help">0,025</span> <abbr class="abbr" title="électron-volt">eV</abbr>). </p> <div class="mw-heading mw-heading3"><h3 id="Unité_de_temps"><span id="Unit.C3.A9_de_temps"></span>Unité de temps</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=6" title="Modifier la section : Unité de temps" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=6" title="Modifier le code source de la section : Unité de temps"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il arrive également que l'on mesure une durée très brève en électronvolts. En effet, d'après la <a href="/wiki/Principe_d%27incertitude#Relation_temps-énergie" title="Principe d'incertitude">relation de Heisenberg</a>, <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Delta E\cdot \Delta t\ {\geq }\ {\frac {\hbar }{2}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Δ</mi> <mi>E</mi> <mo>⋅</mo> <mi mathvariant="normal">Δ</mi> <mi>t</mi> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mo>≥</mo> </mrow> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi class="MJX-variant">ℏ</mi> <mn>2</mn> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Delta E\cdot \Delta t\ {\geq }\ {\frac {\hbar }{2}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/860117ee99b6104761214d1bd2e5c1beba9eb1d5" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.838ex; width:13.278ex; height:5.343ex;" alt="{\displaystyle \Delta E\cdot \Delta t\ {\geq }\ {\frac {\hbar }{2}}}"></span>, on peut faire correspondre un temps à une énergie, et lorsque cette durée est très petite (inférieure à l'<a href="/wiki/Seconde_(temps)" title="Seconde (temps)">attoseconde</a>, soit 10<sup>−18</sup> <abbr class="abbr" title="seconde">s</abbr>), la mesure est moins significative aux yeux de l'observateur exprimée en secondes qu'en eV. La conversion s'effectue par : </p><p><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 {\frac {\hbar }{2}}{\rm {{\frac {1}{eV}}={\frac {1{,}054\,571\,818\times 10^{-34}\;J\;s}{2\times 1{,}602\,176\,634\times 10^{-19}\;J}}=3{,}291\,059\,784\times 10^{-16}\;s}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi class="MJX-variant">ℏ</mi> <mn>2</mn> </mfrac> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>1</mn> <mrow> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">V</mi> </mrow> </mfrac> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>1,054</mn> <mspace width="thinmathspace" /> <mn>571</mn> <mspace width="thinmathspace" /> <mn>818</mn> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>34</mn> </mrow> </msup> <mspace width="thickmathspace" /> <mi mathvariant="normal">J</mi> <mspace width="thickmathspace" /> <mi mathvariant="normal">s</mi> </mrow> <mrow> <mn>2</mn> <mo>×</mo> <mn>1,602</mn> <mspace width="thinmathspace" /> <mn>176</mn> <mspace width="thinmathspace" /> <mn>634</mn> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>19</mn> </mrow> </msup> <mspace width="thickmathspace" /> <mi mathvariant="normal">J</mi> </mrow> </mfrac> </mrow> <mo>=</mo> <mn>3,291</mn> <mspace width="thinmathspace" /> <mn>059</mn> <mspace width="thinmathspace" /> <mn>784</mn> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>16</mn> </mrow> </msup> <mspace width="thickmathspace" /> <mi mathvariant="normal">s</mi> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\frac {\hbar }{2}}{\rm {{\frac {1}{eV}}={\frac {1{,}054\,571\,818\times 10^{-34}\;J\;s}{2\times 1{,}602\,176\,634\times 10^{-19}\;J}}=3{,}291\,059\,784\times 10^{-16}\;s}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/11bd38a830a0bd88c88b348e304748d12c4f2ca8" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.838ex; width:62.923ex; height:6.843ex;" alt="{\displaystyle {\frac {\hbar }{2}}{\rm {{\frac {1}{eV}}={\frac {1{,}054\,571\,818\times 10^{-34}\;J\;s}{2\times 1{,}602\,176\,634\times 10^{-19}\;J}}=3{,}291\,059\,784\times 10^{-16}\;s}}}"></span> </p><p>On rencontre de telles durées notamment dans les <a href="/wiki/Demi-vie" title="Demi-vie">demi-vies</a> de <a href="/wiki/Noyau_exotique" title="Noyau exotique">noyaux exotiques</a>. Par exemple, la demi-vie du <sup>8</sup>C est de <span title="3,685 005 × 10⁻¹⁴ J ou 22 191 619 kJ/mol ou 285 154 000 nm" style="cursor:help">230</span> <abbr class="abbr" title="kiloélectron-volt">keV</abbr>, soit 1,43 × 10<sup>−21</sup> <abbr class="abbr" title="seconde">s</abbr>. </p><p>Par souci de commodité, il est fréquent d'omettre le facteur 2 dans les calculs impliquant plusieurs unités. Ainsi, la conversion devient <i>ħ</i>/eV = 6,582 119 × 10<sup>−16</sup> <abbr class="abbr" title="seconde">s</abbr> </p> <div class="mw-heading mw-heading3"><h3 id="Unité_de_longueur"><span id="Unit.C3.A9_de_longueur"></span>Unité de longueur</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=7" title="Modifier la section : Unité de longueur" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=7" title="Modifier le code source de la section : Unité de longueur"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il arrive également que l'on mesure l'énergie des photons en électronvolts. </p> <dl><dd><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 E={\frac {hc}{\lambda }}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>E</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>h</mi> <mi>c</mi> </mrow> <mi>λ</mi> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle E={\frac {hc}{\lambda }}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a4a8c83479c76652ec6c8bc1a7cb6b4a7e89c3d0" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:8.056ex; height:5.509ex;" alt="{\displaystyle E={\frac {hc}{\lambda }}}"></span> soit : <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 \lambda ={\frac {hc}{E}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>λ</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>h</mi> <mi>c</mi> </mrow> <mi>E</mi> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \lambda ={\frac {hc}{E}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/fabeb510babfa0409ade7075c2701a7fd47a9db8" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.838ex; width:7.636ex; height:5.343ex;" alt="{\displaystyle \lambda ={\frac {hc}{E}}}"></span></dd></dl> <p>or <i>h</i> la constante de Planck vaut : </p> <dl><dd><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 h={\rm {6{,}626\,070\,15\times 10^{-34}\;J\;s=4{,}135\,667\,697\times 10^{-15}\;eV\;s}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>h</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mn>6,626</mn> <mspace width="thinmathspace" /> <mn>070</mn> <mspace width="thinmathspace" /> <mn>15</mn> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>34</mn> </mrow> </msup> <mspace width="thickmathspace" /> <mi mathvariant="normal">J</mi> <mspace width="thickmathspace" /> <mi mathvariant="normal">s</mi> <mo>=</mo> <mn>4,135</mn> <mspace width="thinmathspace" /> <mn>667</mn> <mspace width="thinmathspace" /> <mn>697</mn> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>15</mn> </mrow> </msup> <mspace width="thickmathspace" /> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">V</mi> <mspace width="thickmathspace" /> <mi mathvariant="normal">s</mi> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle h={\rm {6{,}626\,070\,15\times 10^{-34}\;J\;s=4{,}135\,667\,697\times 10^{-15}\;eV\;s}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/dcb8e61256978ac8eb8584c682f0c718f92709a3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:57.488ex; height:3.009ex;" alt="{\displaystyle h={\rm {6{,}626\,070\,15\times 10^{-34}\;J\;s=4{,}135\,667\,697\times 10^{-15}\;eV\;s}}}"></span></dd></dl> <p>et <i>c</i> la vitesse de la lumière est de <span title="1 079 252 848,8 km/h" style="cursor:help">299 792 458</span> <abbr class="abbr" title="mètre par seconde">m s<sup>−1</sup></abbr>. </p><p>Donc un photon de <span title="1,602 176 × 10⁻¹⁹ J ou 96,485 3 kJ/mol ou 1 239,8 nm" style="cursor:help">1</span> <abbr class="abbr" title="électron-volt">eV</abbr> aura une <a href="/wiki/Longueur_d%27onde" title="Longueur d'onde">longueur d'onde</a> de 1,239 841 875 <abbr class="abbr" title="micromètre">µm</abbr>. En pratique, on calcule une longueur d'onde de 1,24 <abbr class="abbr" title="nanomètre">nm</abbr> pour un photon d'<span title="1,602 176 × 10⁻¹⁶ J ou 96 485,3 kJ/mol ou 1 239 800 nm" style="cursor:help">1</span> <abbr class="abbr" title="kiloélectron-volt">keV</abbr>. </p><p>Dans les calculs impliquant plusieurs unités, il est préférable d'utiliser <i>ħ</i> plutôt que <i>h.</i> La formule pour calculer la vitesse de la lumière reste une distance divisée par un temps (donc, sans ajustement par un facteur 2 π). </p> <div class="mw-heading mw-heading2"><h2 id="Notes_et_références"><span id="Notes_et_r.C3.A9f.C3.A9rences"></span>Notes et références</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=8" title="Modifier la section : Notes et références" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=8" title="Modifier le code source de la section : Notes et références"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Notes">Notes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=9" title="Modifier la section : Notes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=9" title="Modifier le code source de la section : Notes"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="references-small decimal" style=""><div class="mw-references-wrap"><ol class="references"> <li id="cite_note-3"><span class="mw-cite-backlink noprint"><a href="#cite_ref-3">↑</a> </span><span class="reference-text">Le potentiel d'extraction des éléments concerne une mesure d'énergie de cohésion caractéristique des corps simples minéraux, à structure cristalline ou polycristalline. Des atomes, groupes ou plans atomiques peuvent être arrachés lors de mesures de spectrométrie UV sous vide. Les potentiels d'électrode normaux, par exemple en solution aqueuse à <span title="24,85 °C ou 76,73 °F" style="cursor:help">298</span> <abbr class="abbr" title="kelvin">K</abbr>, en électrochimie sont l'équivalent de forces électromotrices cellulaires ou de tensions caractéristiques de réactions redox exprimées en volts. Toutefois une tradition anglo-saxonne les assimile à une énergie exprimée en eV</span> </li> </ol></div> </div> <div class="mw-heading mw-heading3"><h3 id="Références"><span id="R.C3.A9f.C3.A9rences"></span>Références</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=10" title="Modifier la section : Références" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=10" title="Modifier le code source de la section : Références"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="references-small decimal" style=""><div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink noprint"><a href="#cite_ref-1">↑</a> </span><span class="reference-text">La graphie avec un trait d’union est celle de l’<a href="/wiki/Acad%C3%A9mie_fran%C3%A7aise" title="Académie française">Académie française</a> (<a rel="nofollow" class="external text" href="https://www.dictionnaire-academie.fr/article/A9E0730">électron-volt</a>), mais elle accepte également la graphie électronvolt selon les recommandations proposées par le Conseil supérieur de la langue française. – [règle §1] Soudure des mots composés). Cette dernière forme est celle retenue par le Bureau international des poids et mesures (<a rel="nofollow" class="external text" href="https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9.pdf">BIPM</a>, page 33), par les normes ISO 80000, par les normes AFNOR et par les décrets <abbr class="abbr" title="numéro">n<sup>o</sup></abbr> 75-1200 (<a rel="nofollow" class="external text" href="http://www.legifrance.gouv.fr/jopdf/common/jo_pdf.jsp?numJO=0&dateJO=19751223&pageDebut=13216&pageFin=&pageCourante=13223">23 décembre 1975</a>, page 13223) et 2003-165 (<a rel="nofollow" class="external text" href="http://www.legifrance.gouv.fr/jopdf/common/jo_pdf.jsp?numJO=0&dateJO=20030301&pageDebut=03638&pageFin=03646&pageCourante=03642">27 février 2003</a>, page 3642).</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink noprint"><a href="#cite_ref-2">↑</a> </span><span class="reference-text"><span class="ouvrage" id="Bureau_international_des_poids_et_mesures2019"><a href="/wiki/Bureau_international_des_poids_et_mesures" title="Bureau international des poids et mesures">Bureau international des poids et mesures</a>, <cite class="italique">Le Système international d'unités (SI)</cite>, Sèvres, BIPM, <time>2019</time>, <abbr class="abbr" title="neuvième">9<sup>e</sup></abbr> <abbr class="abbr" title="édition">éd.</abbr>, 216 <abbr class="abbr" title="pages">p.</abbr> <small style="line-height:1em;">(<a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Sp%C3%A9cial:Ouvrages_de_r%C3%A9f%C3%A9rence/978-92-822-2272-0" title="Spécial:Ouvrages de référence/978-92-822-2272-0"><span class="nowrap">978-92-822-2272-0</span></a>, <a rel="nofollow" class="external text" href="https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9.pdf">lire en ligne</a> <abbr class="abbr indicateur-format format-pdf" title="Document au format Portable Document Format (PDF) d'Adobe">[PDF]</abbr>)</small>, <abbr class="abbr" title="chapitre(s)">chap.</abbr> 4 (« Unités en dehors du SI dont l'usage est accepté avec le SI »), <abbr class="abbr" title="page">p.</abbr> 33<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Le+Syst%C3%A8me+international+d%27unit%C3%A9s+%28SI%29&rft.atitle=Unit%C3%A9s+en+dehors+du+SI+dont+l%27usage+est+accept%C3%A9+avec+le+SI&rft.place=S%C3%A8vres&rft.pub=BIPM&rft.edition=9&rft.aucorp=%5B%5BBureau+international+des+poids+et+mesures%5D%5D&rft.date=2019&rft.pages=33&rft.tpages=216&rft.isbn=978-92-822-2272-0&rfr_id=info%3Asid%2Ffr.wikipedia.org%3A%C3%89lectronvolt"></span></span>.</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink noprint"><a href="#cite_ref-4">↑</a> </span><span class="reference-text"><span class="ouvrage" id="TailletVillainFebvre2018"><span class="ouvrage" id="R._TailletL._VillainP._Febvre2018">R. Taillet, L. Villain et P. Febvre, <cite class="italique">Dictionnaire de physique</cite>, De Boeck Supérieur, <time>2018</time> <small style="line-height:1em;">(<a rel="nofollow" class="external text" href="https://books.google.fr/booksid=pjlFDwAAQBAJ&pg=PA454&lpg=PA454&dq=masse+electron+KeV/c2&source=bl&ots=XoIlNsruWX&sig=wvmv3u_MMPHO4BpaMlB4wVmREX0&hl=fr&sa=X&ved=0ahUKEwji_9jc1dLZAhUssKQKHUzSB7EQ6AEIfzAJ#v=onepage&q=masse%20electron%20KeV%2Fc2&f=false">lire en ligne</a>)</small>, <abbr class="abbr" title="page(s)">p.</abbr> 454 (table 32)<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Dictionnaire+de+physique&rft.pub=De+Boeck+Sup%C3%A9rieur&rft.aulast=Taillet&rft.aufirst=R.&rft.au=L.+Villain&rft.au=P.+Febvre&rft.date=2018&rft.pages=454+%28table+32%29&rfr_id=info%3Asid%2Ffr.wikipedia.org%3A%C3%89lectronvolt"></span></span></span>.</span> </li> </ol></div> </div> <div class="mw-heading mw-heading2"><h2 id="Voir_aussi">Voir aussi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=11" title="Modifier la section : Voir aussi" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=11" title="Modifier le code source de la section : Voir aussi"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r194021218">.mw-parser-output .autres-projets>.titre{text-align:center;margin:0.2em 0}.mw-parser-output .autres-projets>ul{margin:0;padding:0}.mw-parser-output .autres-projets>ul>li{list-style:none;margin:0.2em 0;text-indent:0;padding-left:24px;min-height:20px;text-align:left;display:block}.mw-parser-output .autres-projets>ul>li>a{font-style:italic}@media(max-width:720px){.mw-parser-output .autres-projets{float:none}}</style><div class="autres-projets boite-grise boite-a-droite noprint js-interprojets"> <p class="titre">Sur les autres projets Wikimedia :</p> <ul class="noarchive plainlinks"> <li class="wiktionary"><a href="https://fr.wiktionary.org/wiki/%C3%A9lectron-volt" class="extiw" title="wikt:électron-volt">électron-volt</a>, <span class="nowrap">sur le <span class="project">Wiktionnaire</span></span></li> </ul> </div> <div class="mw-heading mw-heading3"><h3 id="Articles_connexes">Articles connexes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=12" title="Modifier la section : Articles connexes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=12" title="Modifier le code source de la section : Articles connexes"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Pr%C3%A9fixes_du_Syst%C3%A8me_international_d%27unit%C3%A9s" title="Préfixes du Système international d'unités">Préfixes du Système international d'unités</a></li> <li><a href="/wiki/Prout_(unit%C3%A9)" title="Prout (unité)">Prout (unité)</a>, ancienne unité.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Liens_externes">Liens externes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%C3%89lectronvolt&veaction=edit&section=13" title="Modifier la section : Liens externes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%C3%89lectronvolt&action=edit&section=13" title="Modifier le code source de la section : Liens externes"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> <a rel="nofollow" class="external text" href="http://hyperphysics.phy-astr.gsu.edu/hbase/electric/ev.html">Présentation sur hyperphysics</a></li> <li><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> <a rel="nofollow" class="external text" href="http://web.utk.edu/~rcompton/constants">Constantes de base avec tableau de conversion des unités d'énergie</a></li></ul> <ul id="bandeau-portail" class="bandeau-portail"><li><span class="bandeau-portail-element"><span class="bandeau-portail-icone"><span class="noviewer" typeof="mw:File"><a href="/wiki/Portail:Physique" title="Portail de la physique"><img alt="icône décorative" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/Circle-icons-physics-logo.svg/24px-Circle-icons-physics-logo.svg.png" decoding="async" width="24" height="24" class="mw-file-element" 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