Amerikyum, Periyodik tablonun aktinitler dizisinde yer alan ve yapay olarak elde edilen kimyasal bir element. Do\u011fada varl\u0131\u011f\u0131 saptanamayan amerikyum 1944\u2019te Glenn T. Seaborg, Ralph A. James, Leon O. Morgan ve Albert Ghiorso taraf\u0131ndan bir n\u00fckleer reakt\u00f6rde pl\u00fctonyum-239’dan (atom numaras\u0131 94) amerikyum-241 izotopu halinde elde edilir. Bulunan d\u00f6rd\u00fcnc\u00fc uranyum \u00f6tesi element (atom numaras\u0131 96 olan k\u00fcriyum bundan birka\u00e7 ay \u00f6nce bulunmu\u015ftur) olan amerikyum g\u00fcm\u00fc\u015f beyazl\u0131\u011f\u0131nda bir metaldir. Oda s\u0131cakl\u0131\u011f\u0131ndaki kuru havada \u00e7ok yava\u015f karar\u0131r. Kolay elde edilebildi\u011fi i\u00e7in en \u00f6nemli izotopu amerikyum\u2013241’dir; bu izotop pl\u00fctonyumdan elde edilmi\u015f ve ak\u0131\u015fkan yo\u011funluklar\u0131n\u0131n \u00f6l\u00e7\u00fcm\u00fcnde, kal\u0131nl\u0131k \u00f6l\u00e7mede u\u00e7ak yak\u0131t\u0131 g\u00f6stergelerinde ve uzakl\u0131k alg\u0131lay\u0131c\u0131 ayg\u0131tlarda kullan\u0131lm\u0131\u015ft\u0131r. Bu uygulamalar\u0131n hepsine amerikyum\u2013241’in gamma \u0131\u015f\u0131mas\u0131ndan yararlan\u0131l\u0131r. Amerikyumun b\u00fct\u00fcn izotoplar\u0131 radyoaktiftir. Amerikyum\u2013241’in yar\u0131 \u00f6mr\u00fc 458 y\u0131l iken en kararl\u0131 izotopu olan amerikyum\u2013243’\u00fcn yar\u0131 \u00f6mr\u00fc 7.370 y\u0131ld\u0131r ve bu nedenle kimyasal ayr\u0131\u015ft\u0131rmalar i\u00e7in daha elveri\u015flidir<\/p>\n","protected":false},"excerpt":{"rendered":"
Amerikyum, Periyodik tablonun aktinitler dizisinde yer alan ve yapay olarak elde edilen kimyasal bir element. Do\u011fada varl\u0131\u011f\u0131 saptanamayan amerikyum 1944\u2019te Glenn T. Seaborg, Ralph A. James, Leon O. Morgan ve Albert Ghiorso taraf\u0131ndan bir n\u00fckleer reakt\u00f6rde pl\u00fctonyum-239’dan (atom numaras\u0131 94) amerikyum-241 izotopu halinde elde edilir. Bulunan d\u00f6rd\u00fcnc\u00fc uranyum \u00f6tesi element (atom numaras\u0131 96 olan k\u00fcriyum …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1407,1403],"tags":[4816,4845,2137,2216],"class_list":["post-1856","post","type-post","status-publish","format-standard","hentry","category-fen-ve-teknoloji-odevleri","category-odevler","tag-amerikyum","tag-gamma-isimasi","tag-izotop","tag-periyodik-tablo"],"_links":{"self":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts\/1856","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/comments?post=1856"}],"version-history":[{"count":0,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts\/1856\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/media?parent=1856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/categories?post=1856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/tags?post=1856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}