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<div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Mrežno mjesto"> <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="Sadržaj" 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">Sadržaj</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">sakrij</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">Početak</div> </a> </li> <li id="toc-Izvori" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Izvori"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Izvori</span> </div> </a> <ul id="toc-Izvori-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="Sadržaj" 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="Prikaz sadržaja stranice" > <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">Prikaz sadržaja stranice</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">Umjetni elementi</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="Idi na druge jezične varijante članka. Dostupan je na 38 jezika" > <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-38" 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">38 jezika</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/%D8%B9%D9%86%D8%B5%D8%B1_%D8%A7%D8%B5%D8%B7%D9%86%D8%A7%D8%B9%D9%8A" title="عنصر اصطناعي – arapski" lang="ar" hreflang="ar" data-title="عنصر اصطناعي" data-language-autonym="العربية" data-language-local-name="arapski" 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/Elementu_sint%C3%A9ticu" title="Elementu sintéticu – asturijski" lang="ast" hreflang="ast" data-title="Elementu sintéticu" data-language-autonym="Asturianu" data-language-local-name="asturijski" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A1%D0%B8%D0%BD%D1%82%D0%B5%D1%82%D0%B8%D1%87%D0%B5%D0%BD_%D0%B5%D0%BB%D0%B5%D0%BC%D0%B5%D0%BD%D1%82" title="Синтетичен елемент – bugarski" lang="bg" hreflang="bg" data-title="Синтетичен елемент" data-language-autonym="Български" data-language-local-name="bugarski" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Element_sint%C3%A8tic" title="Element sintètic – katalonski" lang="ca" hreflang="ca" data-title="Element sintètic" data-language-autonym="Català" data-language-local-name="katalonski" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Syntetisk_grundstof" title="Syntetisk grundstof – danski" lang="da" hreflang="da" data-title="Syntetisk grundstof" data-language-autonym="Dansk" data-language-local-name="danski" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Synthetic_element" title="Synthetic element – engleski" lang="en" hreflang="en" data-title="Synthetic element" data-language-autonym="English" data-language-local-name="engleski" 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/Elemento_sint%C3%A9tico" title="Elemento sintético – španjolski" lang="es" hreflang="es" data-title="Elemento sintético" data-language-autonym="Español" data-language-local-name="španjolski" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Elementu_kimiko_sintetiko" title="Elementu kimiko sintetiko – baskijski" lang="eu" hreflang="eu" data-title="Elementu kimiko sintetiko" data-language-autonym="Euskara" data-language-local-name="baskijski" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B9%D9%86%D8%B5%D8%B1_%D9%85%D8%B5%D9%86%D9%88%D8%B9%DB%8C" title="عنصر مصنوعی – perzijski" lang="fa" hreflang="fa" data-title="عنصر مصنوعی" data-language-autonym="فارسی" data-language-local-name="perzijski" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/%C3%89l%C3%A9ment_synth%C3%A9tique" title="Élément synthétique – francuski" lang="fr" hreflang="fr" data-title="Élément synthétique" data-language-autonym="Français" data-language-local-name="francuski" 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/D%C3%BAile_sint%C3%A9iseacha" title="Dúile sintéiseacha – irski" lang="ga" hreflang="ga" data-title="Dúile sintéiseacha" data-language-autonym="Gaeilge" data-language-local-name="irski" 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/Elemento_sint%C3%A9tico" title="Elemento sintético – galicijski" lang="gl" hreflang="gl" data-title="Elemento sintético" data-language-autonym="Galego" data-language-local-name="galicijski" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%95%E0%A5%83%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%BF%E0%A4%AE_%E0%A4%A4%E0%A4%A4%E0%A5%8D%E0%A4%B5%E0%A4%BE%E0%A4%A8%E0%A5%8D%E0%A4%A4%E0%A4%B0%E0%A4%A3" title="कृत्रिम तत्वान्तरण – hindski" lang="hi" hreflang="hi" data-title="कृत्रिम तत्वान्तरण" data-language-autonym="हिन्दी" data-language-local-name="hindski" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Mesters%C3%A9ges_elem" title="Mesterséges elem – mađarski" lang="hu" hreflang="hu" data-title="Mesterséges elem" data-language-autonym="Magyar" data-language-local-name="mađarski" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Unsur_kimia_sintetis" title="Unsur kimia sintetis – indonezijski" lang="id" hreflang="id" data-title="Unsur kimia sintetis" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonezijski" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E4%BA%BA%E5%B7%A5%E5%85%83%E7%B4%A0" title="人工元素 – japanski" lang="ja" hreflang="ja" data-title="人工元素" data-language-autonym="日本語" data-language-local-name="japanski" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%96%D0%B0%D1%81%D0%B0%D0%BD%D0%B4%D1%8B_%D1%8D%D0%BB%D0%B5%D0%BC%D0%B5%D0%BD%D1%82%D1%82%D0%B5%D1%80" title="Жасанды элементтер – kazaški" lang="kk" hreflang="kk" data-title="Жасанды элементтер" data-language-autonym="Қазақша" data-language-local-name="kazaški" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%B8%E0%B2%82%E0%B2%AF%E0%B3%8B%E0%B2%9C%E0%B2%BF%E0%B2%A4_%E0%B2%A7%E0%B2%BE%E0%B2%A4%E0%B3%81" title="ಸಂಯೋಜಿತ ಧಾತು – karnatački" lang="kn" hreflang="kn" data-title="ಸಂಯೋಜಿತ ಧಾತು" data-language-autonym="ಕನ್ನಡ" data-language-local-name="karnatački" 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%9D%B8%EA%B3%B5_%EC%9B%90%EC%86%8C" title="인공 원소 – korejski" lang="ko" hreflang="ko" data-title="인공 원소" data-language-autonym="한국어" data-language-local-name="korejski" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Element_sintetich" title="Element sintetich – Lombard" lang="lmo" hreflang="lmo" data-title="Element sintetich" data-language-autonym="Lombard" data-language-local-name="Lombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%92%D0%B5%D1%88%D1%82%D0%B0%D1%87%D0%BA%D0%B8_%D0%B5%D0%BB%D0%B5%D0%BC%D0%B5%D0%BD%D1%82" title="Вештачки елемент – makedonski" lang="mk" hreflang="mk" data-title="Вештачки елемент" data-language-autonym="Македонски" data-language-local-name="makedonski" 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/Unsur_sintetik" title="Unsur sintetik – malajski" lang="ms" hreflang="ms" data-title="Unsur sintetik" data-language-autonym="Bahasa Melayu" data-language-local-name="malajski" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%9E%E1%80%99%E1%80%B9%E1%80%98%E1%80%AC%E1%80%9B_%E1%80%92%E1%80%BC%E1%80%95%E1%80%BA%E1%80%85%E1%80%84%E1%80%BA" title="သမ္ဘာရ ဒြပ်စင် – burmanski" lang="my" hreflang="my" data-title="သမ္ဘာရ ဒြပ်စင်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="burmanski" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Elemento_sint%C3%A9tico" title="Elemento sintético – portugalski" lang="pt" hreflang="pt" data-title="Elemento sintético" data-language-autonym="Português" data-language-local-name="portugalski" 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/Element_sintetic" title="Element sintetic – rumunjski" lang="ro" hreflang="ro" data-title="Element sintetic" data-language-autonym="Română" data-language-local-name="rumunjski" 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%A1%D0%B8%D0%BD%D1%82%D0%B5%D0%B7%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%BD%D1%8B%D0%B5_%D1%85%D0%B8%D0%BC%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5_%D1%8D%D0%BB%D0%B5%D0%BC%D0%B5%D0%BD%D1%82%D1%8B" title="Синтезированные химические элементы – ruski" lang="ru" hreflang="ru" data-title="Синтезированные химические элементы" data-language-autonym="Русский" data-language-local-name="ruski" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Synthetic_element" title="Synthetic element – Simple English" lang="en-simple" hreflang="en-simple" data-title="Synthetic element" 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-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A1%D0%B8%D0%BD%D1%82%D0%B5%D1%82%D0%B8%D1%87%D0%BA%D0%B8_%D0%B5%D0%BB%D0%B5%D0%BC%D0%B5%D0%BD%D1%82" title="Синтетички елемент – srpski" lang="sr" hreflang="sr" data-title="Синтетички елемент" data-language-autonym="Српски / srpski" data-language-local-name="srpski" 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/Syntetiskt_grund%C3%A4mne" title="Syntetiskt grundämne – švedski" lang="sv" hreflang="sv" data-title="Syntetiskt grundämne" data-language-autonym="Svenska" data-language-local-name="švedski" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Elementi_sintetiki" title="Elementi sintetiki – svahili" lang="sw" hreflang="sw" data-title="Elementi sintetiki" data-language-autonym="Kiswahili" data-language-local-name="svahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%9A%E0%AF%86%E0%AE%AF%E0%AE%B1%E0%AF%8D%E0%AE%95%E0%AF%88%E0%AE%A4%E0%AF%8D_%E0%AE%A4%E0%AE%A9%E0%AE%BF%E0%AE%AE%E0%AE%AE%E0%AF%8D" title="செயற்கைத் தனிமம் – tamilski" lang="ta" hreflang="ta" data-title="செயற்கைத் தனிமம்" data-language-autonym="தமிழ்" data-language-local-name="tamilski" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%B8%E0%B0%BF%E0%B0%82%E0%B0%A5%E0%B0%9F%E0%B0%BF%E0%B0%95%E0%B1%8D_%E0%B0%AE%E0%B1%82%E0%B0%B2%E0%B0%95%E0%B0%82" title="సింథటిక్ మూలకం – teluški" lang="te" hreflang="te" data-title="సింథటిక్ మూలకం" data-language-autonym="తెలుగు" data-language-local-name="teluški" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%98%E0%B8%B2%E0%B8%95%E0%B8%B8%E0%B8%AA%E0%B8%B1%E0%B8%87%E0%B9%80%E0%B8%84%E0%B8%A3%E0%B8%B2%E0%B8%B0%E0%B8%AB%E0%B9%8C" title="ธาตุสังเคราะห์ – tajlandski" lang="th" hreflang="th" data-title="ธาตุสังเคราะห์" data-language-autonym="ไทย" data-language-local-name="tajlandski" 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/Yapay_element" title="Yapay element – turski" lang="tr" hreflang="tr" data-title="Yapay element" data-language-autonym="Türkçe" data-language-local-name="turski" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a 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vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Izgled</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">sakrij</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Izvor: Wikipedija</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="hr" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Periodic_table,_good_SVG.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Periodic_table%2C_good_SVG.svg/330px-Periodic_table%2C_good_SVG.svg.png" decoding="async" width="330" height="224" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Periodic_table%2C_good_SVG.svg/495px-Periodic_table%2C_good_SVG.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Periodic_table%2C_good_SVG.svg/660px-Periodic_table%2C_good_SVG.svg.png 2x" data-file-width="1176" data-file-height="800" /></a><figcaption><p style="margin:0px;font-size:100%"><span style="border:1px solid none;background-color:#BB00EE;color:#BB00EE;">██</span> Umjetni elementi</p><p style="margin:0px;font-size:100%"><span style="border:1px solid none;background-color:#FF33FF;color:#FF33FF;">██</span> Rijetki prirodnoradioaktivni elementi</p><p style="margin:0px;font-size:100%"><span style="border:1px solid none;background-color:#FF6600;color:#FF6600;">██</span> Učestali radioaktivni elementi</p></figcaption></figure> <p><b>Umjetni ili sintetični kemijski elementi</b> su nestabilni <a href="/wiki/Kemijski_element" title="Kemijski element">elementi</a> s <a href="/wiki/Vrijeme_poluraspada" title="Vrijeme poluraspada">vremenom poluraspada</a> toliko kratkim u usporedbi sa starošću <a href="/wiki/Zemlja" title="Zemlja">Zemlje</a> da <a href="/wiki/Atom" title="Atom">atomi</a> tih elemenata na Zemlji više ne postoje. Budući da za stvaranje novih elemenata trebaju uvjeti poput onih unutar zvijezda, od <a href="/w/index.php?title=Nastanak_Sun%C4%8Devog_sustava&action=edit&redlink=1" class="new" title="Nastanak Sunčevog sustava (stranica ne postoji)">nastanka Sunčevog sustava</a> i Zemlje prije nekih 4,6 milijarda godina svi takvi elementi na Zemlji su se raspali, a mogu se još dobiti kao proizvodi <a href="/wiki/Nuklearni_reaktor" title="Nuklearni reaktor">nuklearnih reaktora</a> i <a href="/wiki/Akcelerator" class="mw-redirect" title="Akcelerator">akceleratora</a>. Dok su svi elementi rednih brojeva 95–118 isključivo umjetni, i neki drugi se, premda prirodno prisutni u tragovima, najviše dobivaju umjetnim putem. </p><p>Prvi umjetni element, proizveden 1937. godine, bio je <a href="/wiki/Tehnecij" title="Tehnecij">tehnecij</a>. S rednim brojem 43 popunio je dotad prazno mjesto u <a href="/wiki/Periodni_sustav_elemenata" title="Periodni sustav elemenata">periodnom sustavu elemenata</a>. S vremenom poluživota od 210 tisuća godina, njegov je izotop <sup>99</sup>Tc na Zemlji prisutan u rudama težih radioaktivnih elemenata. Budući da tehnecijev najdugovječniji izotop ima vrijeme poluživota od 4,2 milijuna godina, <sup>97</sup>Tc otkriven 1952. u <a href="/wiki/Zvijezda" title="Zvijezda">zvijezdama</a> <a href="/wiki/Crveni_div" title="Crveni div">crvenim divovima</a> poslužio je kao dokaz da zvijezde proizvode teže elemente. </p><p><br /> </p> <table class="wikitable sortable" cellspacing="0" cellpadding="3" border="0"> <caption>Elementi koji se dobivaju umjetnim putem </caption> <tbody><tr> <th><a href="/wiki/Redni_broj_kemijskog_elementa" class="mw-redirect" title="Redni broj kemijskog elementa">Redni broj</a> </th> <th><a href="/wiki/Kemijski_element" title="Kemijski element">Kemijski element</a> </th> <th class="unsortable">Vrijeme poluraspada<sup id="cite_ref-PSE_HR_1-0" class="reference"><a href="#cite_note-PSE_HR-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </th></tr> <tr> <td>43</td> <td><a href="/wiki/Tehnecij" title="Tehnecij">Tehnecij</a> (Tc)</td> <td><sup>99</sup>Tc: 2⋅10<sup>5</sup> godina, <sup>97</sup>Tc: 4,2⋅10<sup>6</sup> godina </td></tr> <tr> <td>61</td> <td><a href="/wiki/Prometij" title="Prometij">Prometij</a> (Pm)</td> <td><sup>147</sup>Pm: 2,6 godina </td></tr> <tr> <td>84</td> <td><a href="/wiki/Polonij" title="Polonij">Polonij</a> (Po)</td> <td><sup>209</sup>Po: 102 godine, <sup>210</sup>Po: 138 dana </td></tr> <tr> <td>85</td> <td><a href="/wiki/Astat" title="Astat">Astat</a> (At)</td> <td><sup>210</sup>At: 8,3 sati, <sup>211</sup>At: 7,2 sati </td></tr> <tr> <td>87</td> <td><a href="/wiki/Francij" title="Francij">Francij</a> (Fr)</td> <td><sup>223</sup>Fr: 22 minute </td></tr> <tr> <td>89</td> <td><a href="/wiki/Aktinij" title="Aktinij">Aktinij</a> (Ac)</td> <td><sup>227</sup>Ac: 218 godina </td></tr> <tr> <td>91</td> <td><a href="/wiki/Protaktinij" title="Protaktinij">Protaktinij</a> (Pa)</td> <td><sup>231</sup>Pa: 8,8⋅10<sup>5</sup> godina </td></tr> <tr> <td>93</td> <td><a href="/wiki/Neptunij" title="Neptunij">Neptunij</a> (Np)</td> <td><sup>237</sup>Np: 2,1⋅10<sup>6</sup> godina </td></tr> <tr> <td>94</td> <td><a href="/wiki/Plutonij" title="Plutonij">Plutonij</a> (Pu)</td> <td><sup>244</sup>Pu </td></tr> <tr> <td>95</td> <td><a href="/wiki/Americij" title="Americij">Americij</a> (Am)</td> <td><sup>243</sup>Am: 7370 godina, <sup>241</sup>Am: 470 godina </td></tr> <tr> <td>96</td> <td><a href="/wiki/Kirij" title="Kirij">Kirij</a> (Cm)</td> <td><sup>247</sup>Cm: >10<sup>6</sup> godina, <sup>243</sup>Cm: 35 godina </td></tr> <tr> <td>97</td> <td><a href="/wiki/Berkelij" title="Berkelij">Berkelij</a> (Bk)</td> <td><sup>247</sup>Bk: 1380 godina, <sup>245</sup>Bk: 4,9 dana </td></tr> <tr> <td>98</td> <td><a href="/wiki/Kalifornij" title="Kalifornij">Kalifornij</a> (Cf)</td> <td><sup>251</sup>Cf: 898 godina, <sup>250</sup>Cf: 10 godina </td></tr> <tr> <td>99</td> <td><a href="/wiki/Einsteinij" class="mw-redirect" title="Einsteinij">Einsteinij</a> (Es)</td> <td><sup>252</sup>Es: 472 dana </td></tr> <tr> <td>100</td> <td><a href="/wiki/Fermij" title="Fermij">Fermij</a> (Fm)</td> <td><sup>257</sup>Fm: 101 dan </td></tr> <tr> <td>101</td> <td><a href="/wiki/Mendelevij" title="Mendelevij">Mendelevij</a> (Md)</td> <td><sup>258</sup>Md: 58 dana </td></tr> <tr> <td>102</td> <td><a href="/wiki/Nobelij" title="Nobelij">Nobelij</a> (No)</td> <td><sup>258</sup>No: 58 minuta </td></tr> <tr> <td>103</td> <td><a href="/wiki/Lorensij" title="Lorensij">Lorensij</a> (Lr)</td> <td><sup>280</sup>Lr: 3 minute </td></tr> <tr> <td>104</td> <td><a href="/wiki/Rutherfordij" class="mw-redirect" title="Rutherfordij">Rutherfordij</a> (Rf)</td> <td><sup>261</sup>Rf </td></tr> <tr> <td>105</td> <td><a href="/wiki/Dubnij" title="Dubnij">Dubnij</a> (Db)</td> <td><sup>262</sup>Db </td></tr> <tr> <td>106</td> <td><a href="/wiki/Seaborgij" class="mw-redirect" title="Seaborgij">Seaborgij</a> (Sg)</td> <td><sup>263</sup>Sg </td></tr> <tr> <td>107</td> <td><a href="/wiki/Bohrij" class="mw-redirect" title="Bohrij">Bohrij</a> (Bh)</td> <td><sup>107</sup>Bh </td></tr> <tr> <td>108</td> <td><a href="/wiki/Hassij" class="mw-redirect" title="Hassij">Hassij</a> (Hs)</td> <td>Hs </td></tr> <tr> <td>109</td> <td><a href="/wiki/Meitnerij" class="mw-redirect" title="Meitnerij">Meitnerij</a> (Mt)</td> <td>Mt </td></tr> <tr> <td>110</td> <td><a href="/wiki/Darmstadij" class="mw-redirect" title="Darmstadij">Darmstadij</a> (Ds)</td> <td>Ds </td></tr> <tr> <td>111</td> <td><a href="/wiki/Roentgenij" title="Roentgenij">Roentgenij</a> (Rg)</td> <td>Rg </td></tr></tbody></table> <table class="wikitable"> <caption> </caption><tbody><tr><td></td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Izvori">Izvori</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Umjetni_elementi&veaction=edit&section=1" title="Uredi odlomak: Izvori" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Umjetni_elementi&action=edit&section=1" title="Uredi kôd odjeljka Izvori"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r6541845">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-PSE_HR-1"><span class="mw-cite-backlink"><a href="#cite_ref-PSE_HR_1-0">↑</a></span> <span class="reference-text">Ivan Žugaj, Periodni sustav elemenata, MEDIA SCI (Zagreb, 2005.)</span> </li> </ol></div></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Dobavljeno iz "<a dir="ltr" href="https://hr.wikipedia.org/w/index.php?title=Umjetni_elementi&oldid=6187626">https://hr.wikipedia.org/w/index.php?title=Umjetni_elementi&oldid=6187626</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a 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