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class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">přesunout do postranního panelu</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">skrýt</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">(úvod)</div> </a> </li> <li id="toc-Značení" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Značení"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Značení</span> </div> </a> <ul id="toc-Značení-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Měření" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Měření"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Měření</span> </div> </a> <ul id="toc-Měření-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Výpočet" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Výpočet"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Výpočet</span> </div> </a> <ul id="toc-Výpočet-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Vlastnosti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Vlastnosti"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Vlastnosti</span> </div> </a> <button aria-controls="toc-Vlastnosti-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>Přepnout podsekci Vlastnosti</span> </button> <ul id="toc-Vlastnosti-sublist" class="vector-toc-list"> <li id="toc-Relativní_atomová_hmotnost_pro_některé_prvky" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Relativní_atomová_hmotnost_pro_některé_prvky"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Relativní atomová hmotnost pro některé prvky</span> </div> </a> <ul id="toc-Relativní_atomová_hmotnost_pro_některé_prvky-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Související_články" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Související_články"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Související články</span> </div> </a> <ul id="toc-Související_články-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="Obsah" 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="Přepnout obsah" > <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">Přepnout obsah</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">Relativní atomová hmotnost</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="Přejděte k článku v jiném jazyce. Je dostupný v 40 jazycích" > <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-40" 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">40 jazyků</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%83%D8%AA%D9%84%D8%A9_%D8%B0%D8%B1%D9%8A%D8%A9_%D9%86%D8%B3%D8%A8%D9%8A%D8%A9" title="كتلة ذرية نسبية – arabština" lang="ar" hreflang="ar" data-title="كتلة ذرية نسبية" data-language-autonym="العربية" data-language-local-name="arabština" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%90%D0%B4%D0%BD%D0%BE%D1%81%D0%BD%D0%B0%D1%8F_%D0%B0%D1%82%D0%B0%D0%BC%D0%BD%D0%B0%D1%8F_%D0%BC%D0%B0%D1%81%D0%B0" title="Адносная атамная маса – běloruština" lang="be" hreflang="be" data-title="Адносная атамная маса" data-language-autonym="Беларуская" data-language-local-name="běloruština" 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%90%D0%B4%D0%BD%D0%BE%D1%81%D0%BD%D0%B0%D1%8F_%D0%B0%D1%82%D0%B0%D0%BC%D0%BD%D0%B0%D1%8F_%D0%BC%D0%B0%D1%81%D0%B0" title="Адносная атамная маса – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Адносная атамная маса" 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-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%AA%E0%A7%87%E0%A6%95%E0%A7%8D%E0%A6%B7%E0%A6%BF%E0%A6%95_%E0%A6%AA%E0%A6%BE%E0%A6%B0%E0%A6%AE%E0%A6%BE%E0%A6%A3%E0%A6%AC%E0%A6%BF%E0%A6%95_%E0%A6%AD%E0%A6%B0" title="আপেক্ষিক পারমাণবিক ভর – bengálština" lang="bn" hreflang="bn" data-title="আপেক্ষিক পারমাণবিক ভর" data-language-autonym="বাংলা" data-language-local-name="bengálština" 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/Massa_at%C3%B2mica_relativa" title="Massa atòmica relativa – katalánština" lang="ca" hreflang="ca" data-title="Massa atòmica relativa" data-language-autonym="Català" data-language-local-name="katalánština" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Relative_atomic_mass" title="Relative atomic mass – angličtina" lang="en" hreflang="en" data-title="Relative atomic mass" data-language-autonym="English" data-language-local-name="angličtina" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Masa_at%C3%B3mica_relativa" title="Masa atómica relativa – španělština" lang="es" hreflang="es" data-title="Masa atómica relativa" data-language-autonym="Español" data-language-local-name="španělština" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AC%D8%B1%D9%85_%D8%A7%D8%AA%D9%85%DB%8C_%D9%86%D8%B3%D8%A8%DB%8C" title="جرم اتمی نسبی – perština" lang="fa" hreflang="fa" data-title="جرم اتمی نسبی" data-language-autonym="فارسی" data-language-local-name="perština" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr badge-Q70894304 mw-list-item" title=""><a href="https://fr.wikipedia.org/wiki/Masse_atomique_relative" title="Masse atomique relative – francouzština" lang="fr" hreflang="fr" data-title="Masse atomique relative" data-language-autonym="Français" data-language-local-name="francouzština" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Mais_adamhach_choibhneasta" title="Mais adamhach choibhneasta – irština" lang="ga" hreflang="ga" data-title="Mais adamhach choibhneasta" data-language-autonym="Gaeilge" data-language-local-name="irština" 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/Glout_breneenagh_conastagh" title="Glout breneenagh conastagh – manština" lang="gv" hreflang="gv" data-title="Glout breneenagh conastagh" data-language-autonym="Gaelg" data-language-local-name="manština" class="interlanguage-link-target"><span>Gaelg</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%A9%D7%A7%D7%9C_%D7%90%D7%98%D7%95%D7%9E%D7%99" title="משקל אטומי – hebrejština" lang="he" hreflang="he" data-title="משקל אטומי" data-language-autonym="עברית" data-language-local-name="hebrejština" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AA%E0%A4%B0%E0%A4%AE%E0%A4%BE%E0%A4%A3%E0%A5%81_%E0%A4%AD%E0%A4%BE%E0%A4%B0" title="परमाणु भार – hindština" lang="hi" hreflang="hi" data-title="परमाणु भार" data-language-autonym="हिन्दी" data-language-local-name="hindština" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hif mw-list-item"><a href="https://hif.wikipedia.org/wiki/Atomic_weight" title="Atomic weight – hindština (Fidži)" lang="hif" hreflang="hif" data-title="Atomic weight" data-language-autonym="Fiji Hindi" data-language-local-name="hindština (Fidži)" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Relativna_atomska_masa" title="Relativna atomska masa – chorvatština" lang="hr" hreflang="hr" data-title="Relativna atomska masa" data-language-autonym="Hrvatski" data-language-local-name="chorvatština" 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/Mas_atomik_mway%C3%A8n" title="Mas atomik mwayèn – haitština" lang="ht" hreflang="ht" data-title="Mas atomik mwayèn" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haitština" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%80%D5%A1%D6%80%D5%A1%D5%A2%D5%A5%D6%80%D5%A1%D5%AF%D5%A1%D5%B6_%D5%A1%D5%BF%D5%B8%D5%B4%D5%A1%D5%B5%D5%AB%D5%B6_%D5%A6%D5%A1%D5%B6%D5%A3%D5%BE%D5%A1%D5%AE" title="Հարաբերական ատոմային զանգված – arménština" lang="hy" hreflang="hy" data-title="Հարաբերական ատոմային զանգված" data-language-autonym="Հայերեն" data-language-local-name="arménština" 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/Massa_atom_relatif" title="Massa atom relatif – indonéština" lang="id" hreflang="id" data-title="Massa atom relatif" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonéština" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ilo mw-list-item"><a href="https://ilo.wikipedia.org/wiki/Atomiko_a_kadagsen" title="Atomiko a kadagsen – ilokánština" lang="ilo" hreflang="ilo" data-title="Atomiko a kadagsen" data-language-autonym="Ilokano" data-language-local-name="ilokánština" class="interlanguage-link-target"><span>Ilokano</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Massa_atomica_relativa" title="Massa atomica relativa – italština" lang="it" hreflang="it" data-title="Massa atomica relativa" data-language-autonym="Italiano" data-language-local-name="italština" 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/%E7%9B%B8%E5%AF%BE%E5%8E%9F%E5%AD%90%E8%B3%AA%E9%87%8F" title="相対原子質量 – japonština" lang="ja" hreflang="ja" data-title="相対原子質量" data-language-autonym="日本語" data-language-local-name="japonština" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%AA%E0%B2%B0%E0%B2%AE%E0%B2%BE%E0%B2%A3%E0%B3%81_%E0%B2%A4%E0%B3%82%E0%B2%95" title="ಪರಮಾಣು ತೂಕ – kannadština" lang="kn" hreflang="kn" data-title="ಪರಮಾಣು ತೂಕ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannadština" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%83%81%EB%8C%80_%EC%9B%90%EC%9E%90_%EC%A7%88%EB%9F%89" title="상대 원자 질량 – korejština" lang="ko" hreflang="ko" data-title="상대 원자 질량" data-language-autonym="한국어" data-language-local-name="korejština" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Giraniya_atom%C3%AA" title="Giraniya atomê – kurdština" lang="ku" hreflang="ku" data-title="Giraniya atomê" data-language-autonym="Kurdî" data-language-local-name="kurdština" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%90%D1%82%D0%BE%D0%BC%D1%81%D0%BA%D0%B0_%D1%82%D0%B5%D0%B6%D0%B8%D0%BD%D0%B0" title="Атомска тежина – makedonština" lang="mk" hreflang="mk" data-title="Атомска тежина" data-language-autonym="Македонски" data-language-local-name="makedonština" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Jisim_atom_relatif" title="Jisim atom relatif – malajština" lang="ms" hreflang="ms" data-title="Jisim atom relatif" data-language-autonym="Bahasa Melayu" data-language-local-name="malajština" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Relativ_molekylmasse" title="Relativ molekylmasse – norština (nynorsk)" lang="nn" hreflang="nn" data-title="Relativ molekylmasse" data-language-autonym="Norsk nynorsk" data-language-local-name="norština (nynorsk)" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%B8%E0%A8%BE%E0%A8%AA%E0%A9%87%E0%A8%96%E0%A8%BF%E0%A8%95_%E0%A8%90%E0%A8%9F%E0%A8%AE%E0%A9%80_%E0%A8%AA%E0%A9%81%E0%A9%B0%E0%A8%9C" title="ਸਾਪੇਖਿਕ ਐਟਮੀ ਪੁੰਜ – paňdžábština" lang="pa" hreflang="pa" data-title="ਸਾਪੇਖਿਕ ਐਟਮੀ ਪੁੰਜ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="paňdžábština" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl badge-Q70894304 mw-list-item" title=""><a href="https://pl.wikipedia.org/wiki/Wzgl%C4%99dna_masa_atomowa" title="Względna masa atomowa – polština" lang="pl" hreflang="pl" data-title="Względna masa atomowa" data-language-autonym="Polski" data-language-local-name="polština" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Mas%C4%83_atomic%C4%83_relativ%C4%83" title="Masă atomică relativă – rumunština" lang="ro" hreflang="ro" data-title="Masă atomică relativă" data-language-autonym="Română" data-language-local-name="rumunština" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Relative_atomic_mass" title="Relative atomic mass – Simple English" lang="en-simple" hreflang="en-simple" data-title="Relative atomic mass" 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/Relat%C3%ADvna_at%C3%B3mov%C3%A1_hmotnos%C5%A5" title="Relatívna atómová hmotnosť – slovenština" lang="sk" hreflang="sk" data-title="Relatívna atómová hmotnosť" data-language-autonym="Slovenčina" data-language-local-name="slovenština" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%90%D1%82%D0%BE%D0%BC%D1%81%D0%BA%D0%B0_%D1%82%D0%B5%D0%B6%D0%B8%D0%BD%D0%B0" title="Атомска тежина – srbština" lang="sr" hreflang="sr" data-title="Атомска тежина" data-language-autonym="Српски / srpski" data-language-local-name="srbština" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%99%E0%B9%89%E0%B8%B3%E0%B8%AB%E0%B8%99%E0%B8%B1%E0%B8%81%E0%B8%AD%E0%B8%B0%E0%B8%95%E0%B8%AD%E0%B8%A1" title="น้ำหนักอะตอม – thajština" lang="th" hreflang="th" data-title="น้ำหนักอะตอม" data-language-autonym="ไทย" data-language-local-name="thajština" 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data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Z Wikipedie, otevřené encyklopedie</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="cs" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Soubor:Atomic_number_Atomic_weight.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/f/fb/Atomic_number_Atomic_weight.jpg" decoding="async" width="164" height="136" class="mw-file-element" data-file-width="164" data-file-height="136" /></a><figcaption>Nukleonové číslo a relativní atomová hmotnost (zaokrouhlená) pro vodík</figcaption></figure> <p><b>Relativní atomová hmotnost</b> (též <b>poměrná atomová hmotnost</b>) je <a href="/wiki/D%C4%9Blen%C3%AD" title="Dělení">podíl</a> <a href="/wiki/Klidov%C3%A1_hmotnost" title="Klidová hmotnost">klidové hmotnosti</a> <a href="/wiki/Atom" title="Atom">atomu</a> a <a href="/wiki/Atomov%C3%A1_hmotnostn%C3%AD_konstanta" title="Atomová hmotnostní konstanta">atomové hmotnostní konstanty</a>. Pro jeden atom přibližně odpovídá <a href="/wiki/Nukleonov%C3%A9_%C4%8D%C3%ADslo" title="Nukleonové číslo">nukleonovému číslu</a>, tj. počtu <a href="/wiki/Nukleon" title="Nukleon">nukleonů</a> v <a href="/wiki/Atomov%C3%A9_j%C3%A1dro" title="Atomové jádro">jádře</a>. U <a href="/wiki/Chemick%C3%BD_prvek" title="Chemický prvek">prvků</a> v přírodě je dána poměrným zastoupením <a href="/wiki/Izotop" title="Izotop">izotopů</a> prvku. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Značení"><span id="Zna.C4.8Den.C3.AD"></span>Značení</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&veaction=edit&section=1" title="Editace sekce: Značení" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&action=edit&section=1" title="Editovat zdrojový kód sekce Značení"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Symbol <a href="/wiki/Fyzik%C3%A1ln%C3%AD_veli%C4%8Dina" title="Fyzikální veličina">veličiny</a>: <i>A</i><sub>r</sub></li> <li><a href="/wiki/Fyzik%C3%A1ln%C3%AD_jednotka" title="Fyzikální jednotka">Jednotka</a>: <a href="/wiki/Bezrozm%C4%9Brn%C3%A1_veli%C4%8Dina" title="Bezrozměrná veličina">bezrozměrná veličina</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Měření"><span id="M.C4.9B.C5.99en.C3.AD"></span>Měření</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&veaction=edit&section=2" title="Editace sekce: Měření" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&action=edit&section=2" title="Editovat zdrojový kód sekce Měření"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>K měření relativní atomové hmotností se používá hmotnostní spektrometr (<a href="/wiki/Hmotnostn%C3%AD_spektrometrie" title="Hmotnostní spektrometrie">hmotnostní spektrometrie</a>). </p> <div class="mw-heading mw-heading2"><h2 id="Výpočet"><span id="V.C3.BDpo.C4.8Det"></span>Výpočet</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&veaction=edit&section=3" title="Editace sekce: Výpočet" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&action=edit&section=3" title="Editovat zdrojový kód sekce Výpočet"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Relativní atomová hmotnost je určena vztahem </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 A_{\mathrm {r} }={\frac {m_{\mathrm {a} }}{m_{\mathrm {u} }}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">r</mi> </mrow> </mrow> </msub> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msub> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">a</mi> </mrow> </mrow> </msub> <msub> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">u</mi> </mrow> </mrow> </msub> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle A_{\mathrm {r} }={\frac {m_{\mathrm {a} }}{m_{\mathrm {u} }}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/baf1b9847c3e0232b48c7939b627e0f7cb1b2cb9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:9.741ex; height:5.009ex;" alt="{\displaystyle A_{\mathrm {r} }={\frac {m_{\mathrm {a} }}{m_{\mathrm {u} }}}}"></span>,</dd></dl> <p>kde <i>m</i><sub>a</sub> je <a href="/wiki/Klidov%C3%A1_hmotnost" title="Klidová hmotnost">klidová hmotnost</a> atomu, <i>m</i><sub>u</sub> je <a href="/wiki/Atomov%C3%A1_hmotnostn%C3%AD_konstanta" title="Atomová hmotnostní konstanta">atomová hmotnostní konstanta</a> (1,661×10<sup>−27</sup> kg). </p> <div class="mw-heading mw-heading2"><h2 id="Vlastnosti">Vlastnosti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&veaction=edit&section=4" title="Editace sekce: Vlastnosti" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&action=edit&section=4" title="Editovat zdrojový kód sekce Vlastnosti"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Relativní atomová hmotnost je rovna číselné hodnotě atomové hmotnosti vyjádřené v <a href="/wiki/Atomov%C3%A1_hmotnostn%C3%AD_konstanta#(Unifikovaná)_atomová_hmotnostní_jednotka,_dalton" title="Atomová hmotnostní konstanta">(unifikovaných) atomových hmotnostních jednotkách</a> (značka <b>u</b>), též zvaných dalton (značka <b>Da</b>). </p><p>Číselně je relativní atomová hmotnost rovna <a href="/wiki/Mol%C3%A1rn%C3%AD_hmotnost" title="Molární hmotnost">molární hmotnosti</a> vyjádřené v <a href="/wiki/Gram" class="mw-redirect" title="Gram">gramech</a> na <a href="/wiki/Mol_(jednotka)" title="Mol (jednotka)">mol</a>. </p><p>Zjištěné relativní atomové hmotnosti se používají k výpočtu hmotnosti atomu <i>m</i><sub>a</sub> pomocí vztahu </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 m_{\mathrm {a} }=A_{\mathrm {r} }m_{\mathrm {u} }\,\,\,{\mbox{(kg)}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">a</mi> </mrow> </mrow> </msub> <mo>=</mo> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">r</mi> </mrow> </mrow> </msub> <msub> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">u</mi> </mrow> </mrow> </msub> <mspace width="thinmathspace" /> <mspace width="thinmathspace" /> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mtext>(kg)</mtext> </mstyle> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle m_{\mathrm {a} }=A_{\mathrm {r} }m_{\mathrm {u} }\,\,\,{\mbox{(kg)}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a031e50d15c8df14212f602d737df429e7557087" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:17.36ex; height:2.843ex;" alt="{\displaystyle m_{\mathrm {a} }=A_{\mathrm {r} }m_{\mathrm {u} }\,\,\,{\mbox{(kg)}}}"></span>,</dd></dl> <p>kde <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 m_{\mathrm {u} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">u</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle m_{\mathrm {u} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/cbe5934b31f26fd571b38d09d97685366ef3da5e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.187ex; height:2.009ex;" alt="{\displaystyle m_{\mathrm {u} }}"></span> je v kilogramech. </p> <div class="mw-heading mw-heading3"><h3 id="Relativní_atomová_hmotnost_pro_některé_prvky"><span id="Relativn.C3.AD_atomov.C3.A1_hmotnost_pro_n.C4.9Bkter.C3.A9_prvky"></span>Relativní atomová hmotnost pro některé prvky</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&veaction=edit&section=5" title="Editace sekce: Relativní atomová hmotnost pro některé prvky" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&action=edit&section=5" title="Editovat zdrojový kód sekce Relativní atomová hmotnost pro některé prvky"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable"> <tbody><tr> <td>Látka</td> <td><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 A_{\mathrm {r} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">r</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle A_{\mathrm {r} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b079fc9560e65c37f1975100b18f3cc1dffc9d35" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.62ex; height:2.509ex;" alt="{\displaystyle A_{\mathrm {r} }}"></span> </td></tr> <tr> <td><a href="/wiki/Vod%C3%ADk" title="Vodík">Vodík</a></td> <td>1,00797 </td></tr> <tr> <td><a href="/wiki/Helium" title="Helium">Helium</a></td> <td>4,0026 </td></tr> <tr> <td><a href="/wiki/Uhl%C3%ADk" title="Uhlík">Uhlík</a></td> <td>12,01115 </td></tr> <tr> <td><a href="/wiki/Dus%C3%ADk" title="Dusík">Dusík</a></td> <td>14,0067 </td></tr> <tr> <td><a href="/wiki/Kysl%C3%ADk" title="Kyslík">Kyslík</a></td> <td>15,9994 </td></tr> <tr> <td><a href="/wiki/Hlin%C3%ADk" title="Hliník">Hliník</a></td> <td>26,9815 </td></tr> <tr> <td><a href="/wiki/S%C3%ADra" title="Síra">Síra</a></td> <td>32,064 </td></tr> <tr> <td><a href="/wiki/Chlor" title="Chlor">Chlor</a></td> <td>35,453 </td></tr> <tr> <td><a href="/wiki/Drasl%C3%ADk" title="Draslík">Draslík</a></td> <td>39,096 </td></tr> <tr> <td><a href="/wiki/%C5%BDelezo" title="Železo">Železo</a></td> <td>55,847 </td></tr> <tr> <td><a href="/wiki/M%C4%9B%C4%8F" title="Měď">Měď</a></td> <td>63,546 </td></tr> <tr> <td><a href="/wiki/St%C5%99%C3%ADbro" title="Stříbro">Stříbro</a></td> <td>107,870 </td></tr> <tr> <td><a href="/wiki/Zlato" title="Zlato">Zlato</a></td> <td>196,967 </td></tr> <tr> <td><a href="/wiki/Rtu%C5%A5" title="Rtuť">Rtuť</a></td> <td>200,59 </td></tr> <tr> <td><a href="/wiki/Olovo" title="Olovo">Olovo</a></td> <td>207,2 </td></tr> <tr> <td><a href="/wiki/Uran_(prvek)" title="Uran (prvek)">Uran</a></td> <td>238,03 </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Související_články"><span id="Souvisej.C3.ADc.C3.AD_.C4.8Dl.C3.A1nky"></span>Související články</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&veaction=edit&section=6" title="Editace sekce: Související články" class="mw-editsection-visualeditor"><span>editovat</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Relativn%C3%AD_atomov%C3%A1_hmotnost&action=edit&section=6" title="Editovat zdrojový kód sekce Související články"><span>editovat zdroj</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Relativn%C3%AD_molekulov%C3%A1_hmotnost" title="Relativní molekulová hmotnost">Relativní molekulová hmotnost</a></li> <li><a href="/wiki/Mol%C3%A1rn%C3%AD_hmotnost" title="Molární hmotnost">Molární hmotnost</a></li></ul> <style data-mw-deduplicate="TemplateStyles:r23078045">.mw-parser-output .navbox2{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox2 .navbox2{margin-top:0}.mw-parser-output .navbox2+.navbox2{margin-top:-1px}.mw-parser-output .navbox2-inner,.mw-parser-output .navbox2-subgroup{width:100%}.mw-parser-output .navbox2-group,.mw-parser-output .navbox2-title,.mw-parser-output .navbox2-abovebelow{padding:0.25em 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