{"id":2953,"date":"2012-01-22T06:13:40","date_gmt":"2012-01-22T04:13:40","guid":{"rendered":"http:\/\/www.ilkkimbuldu.com\/?p=2953"},"modified":"2016-12-25T15:39:46","modified_gmt":"2016-12-25T13:39:46","slug":"izotopu-kim-buldu","status":"publish","type":"post","link":"https:\/\/www.ilkkimbuldu.com\/?p=2953","title":{"rendered":"\u0130zotop&#8217;u kim buldu"},"content":{"rendered":"<p>Atom numaras\u0131 ayn\u0131, fakat atom a\u011f\u0131rl\u0131klar\u0131 farkl\u0131 olan elementlere verilen ada izotop denilmektedir. Kimyasal \u00f6zellikleri hemen hemen ayn\u0131 oldu\u011fu i\u00e7in periyotlar cetvelinde ayn\u0131 yerde bulunan, bu elementlere izotop elementler denir. 1907\u2019de H. N. Mc Coy ve W. H. Ross belirli radyoaktif bozunma \u00fcr\u00fcnlerinin toryumda oldu\u011fu gibi ayn\u0131 kimyevi \u00f6zelli\u011fe ve farkl\u0131 atom a\u011f\u0131rl\u0131\u011f\u0131na sahip oldu\u011funu ke\u015ffettiler. 1913\u2019te bu elemente izotop ad\u0131\u00a0<strong>Frederick Soddy<\/strong> taraf\u0131ndan verildi.<\/p>\n<p>Kararl\u0131 halde bulunan izotoplar\u0131n varl\u0131\u011f\u0131n\u0131 ilk \u00f6nce 1913\u2019te <strong>J. J. Thomson<\/strong>, pozitif neon iyonlar\u0131n\u0131n manyetik alanlardaki sapmalar\u0131n\u0131 \u00f6l\u00e7mek suretiyle ke\u015ffetti. Bu metodla Thomson birinin k\u00fctlesi 20, \u00f6b\u00fcr\u00fcn\u00fcn k\u00fctlesi 22 olan iki neon iyonunun mevcut oldu\u011funu g\u00f6rd\u00fc.<\/p>\n<p>Aston ve Dempster taraf\u0131ndan s\u00fcrd\u00fcr\u00fclen ve \u201ck\u00fctle spektrometresi\u201d temeline dayanan \u00e7al\u0131\u015fmalar, bir\u00e7ok elementin asl\u0131nda k\u00fctle say\u0131lar\u0131 farkl\u0131 izotop kar\u0131\u015f\u0131mlar\u0131ndan meydana geldi\u011fini g\u00f6sterdi. Ayn\u0131 senelerde Soddy ve Fajans\u2019\u0131n \u00e7al\u0131\u015fmalar\u0131 sonucu kimyevi yolla ayr\u0131lamayan elementlerin varl\u0131\u011f\u0131 ortaya kondu. Bu elementler biribirinden radyoaktif devir ve atom a\u011f\u0131rl\u0131klar\u0131n\u0131n farkl\u0131 olmas\u0131yla ayr\u0131labilir.<\/p>\n<p>Bug\u00fcn yakla\u015f\u0131k 1500 tane izotop bilinmektedir. Bunlardan 280 tanesi kararl\u0131 ve 25 tanesi radyoaktif olmak \u00fczere tabiatta bulunur. Yakla\u015f\u0131k 1200 kadar\u0131 da\u00a0 yapay olarak elde edilmi\u015ftir.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Atom numaras\u0131 ayn\u0131, fakat atom a\u011f\u0131rl\u0131klar\u0131 farkl\u0131 olan elementlere verilen ada izotop denilmektedir. Kimyasal \u00f6zellikleri hemen hemen ayn\u0131 oldu\u011fu i\u00e7in periyotlar cetvelinde ayn\u0131 yerde bulunan, bu elementlere izotop elementler denir&#8230;.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[92],"tags":[1542,1541],"class_list":["post-2953","post","type-post","status-publish","format-standard","hentry","category-bilim","tag-frederick-soddy","tag-izotop"],"_links":{"self":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2953"}],"collection":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2953"}],"version-history":[{"count":4,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2953\/revisions"}],"predecessor-version":[{"id":6624,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2953\/revisions\/6624"}],"wp:attachment":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2953"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2953"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2953"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}