Oktet kural\u0131 elementlerin bile\u015fik meydana getirirken, son y\u00f6r\u00fcngelerindeki elektron say\u0131lar\u0131n\u0131, soy gazlar\u0131nkine benzer k\u0131lmak i\u00e7in, sekize getirmesi kaidesi. Helyum hari\u00e7, b\u00fct\u00fcn soy gazlar\u0131n son y\u00f6r\u00fcngesinde sekiz elektron vard\u0131r. Helyumun ise sadece iki elektronu olup, helyuma benzemek i\u00e7in elektron say\u0131s\u0131n\u0131 ikiye getirmeye de \u201cduet kural\u0131\u201d denir.<\/p>\n
Soy gazlar\u0131n elektron d\u00fczeni, onlar\u0131n kararl\u0131 olmas\u0131n\u0131n sebebidir. Bu sebepten son y\u00f6r\u00fcngesinde, soy gaza g\u00f6re elektron fazlal\u0131\u011f\u0131 veya eksikli\u011fi olan elementler, bile\u015fik verirken elektron al\u0131\u015f veri\u015flerini bu kararl\u0131 hale eri\u015fecek \u015fekilde yaparlar. Son y\u00f6r\u00fcngesinde soy gaza g\u00f6re elektron \u201ceksikli\u011fi\u201d olan farkl\u0131 elementler veya ayn\u0131 cins elementin atomlar\u0131, molek\u00fcl meydana getirirken, oktet kural\u0131na uyarak \u201cortakla\u015fa elektron kullanmak\u201d suretiyle, bu kararl\u0131 yap\u0131ya ula\u015f\u0131rlar. Mesela N, O ve F son y\u00f6r\u00fcngelerinde s\u0131ras\u0131yla 5, 6 ve 7 elektron bulundururlar. Bu elektron say\u0131lar\u0131n\u0131 sekize tamamlamak i\u00e7in s\u0131ras\u0131yla 3, 2 ve 1 elektron ortakl\u0131\u011f\u0131nda bulunarak N2, O2 ve F2 molek\u00fcllerini meydana getirirken, Ne (Neon) elektron d\u00fczenini (1s2, 2p6) taklit ederler. Hidrojenin bir tek elektronu olup, iki hidrojen atomu bir hidrojen molek\u00fcl\u00fc meydana getirirken, bu atomlar birer elektronlar\u0131n\u0131 ortakla\u015fa kullanarak He elektron d\u00fczenini (1s2) taklit ederler. Metan molek\u00fcl\u00fc, karbonun oktetini ve hidrojenin duetini sa\u011flad\u0131\u011f\u0131 bir bile\u015fiktir:<\/p>\n
Ancak duet ve oktet kurallar\u0131, peryodik cetvelin birinci ve ikinci devirleri i\u00e7in tam ge\u00e7erlidir. \u00c7\u00fcnk\u00fc \u00fc\u00e7\u00fcnc\u00fc devirden ba\u015fl\u0131yarak elektron zarflar\u0131 (d) orbitallerini ihtiva etti\u011finden, atomun son y\u00f6r\u00fcngesi 8’den fazla elektronla \u00e7evrili olur. Bu sebeple bu kurallar art\u0131k ge\u00e7erli olmaz.<\/p>\n","protected":false},"excerpt":{"rendered":"
Oktet kural\u0131 elementlerin bile\u015fik meydana getirirken, son y\u00f6r\u00fcngelerindeki elektron say\u0131lar\u0131n\u0131, soy gazlar\u0131nkine benzer k\u0131lmak i\u00e7in, sekize getirmesi kaidesi. Helyum hari\u00e7, b\u00fct\u00fcn soy gazlar\u0131n son y\u00f6r\u00fcngesinde sekiz elektron vard\u0131r. Helyumun ise sadece iki elektronu olup, helyuma benzemek i\u00e7in elektron say\u0131s\u0131n\u0131 ikiye getirmeye de \u201cduet kural\u0131\u201d denir. Soy gazlar\u0131n elektron d\u00fczeni, onlar\u0131n kararl\u0131 olmas\u0131n\u0131n sebebidir. Bu sebepten … Devam\u0131n\u0131 oku…<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,15],"tags":[968],"class_list":["post-3175","post","type-post","status-publish","format-standard","hentry","category-dn","category-fen-teknoloji","tag-oktet-kurali"],"_links":{"self":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/posts\/3175","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/comments?post=3175"}],"version-history":[{"count":0,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/posts\/3175\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/media?parent=3175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/categories?post=3175"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/tags?post=3175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}