{"id":118545,"date":"2024-05-09T12:56:53","date_gmt":"2024-05-09T09:56:53","guid":{"rendered":"https:\/\/milliycha.uz\/?p=118545"},"modified":"2024-05-09T12:57:02","modified_gmt":"2024-05-09T09:57:02","slug":"protaktiniy","status":"publish","type":"post","link":"https:\/\/milliycha.uz\/ru\/protaktiniy\/","title":{"rendered":"Protaktiniy"},"content":{"rendered":"\n<p>Protaktiniy (Yun. protos \u2014 bi- rinchi va aktiniy; lot. Protactinium), Pa \u2014 radioaktiv kimyoviy element. Tar-tib raqami 91, at.m. 231,0359, aktino-idlar- ga kiradi. Turg&#8217;un izotopi yo&#8217;q. 12 ta ra- dioaktiv izotopi ma&#8217;lum, eng uzok, mav- jud bo&#8217;luvchi izotopi 23|ra (T&#8217;\/2=32400 y.) 1917 y.da shved mineralogi va kimyo- Gari yu. Gan b-n avstraliyalik fizik va radiokimyogar L. Meytner, ularga bog&#8217;liq bo&#8217;lmagan holda ingliz radiokimyogarla- ri F. Soddi va Kranstonlar tomonidan uran rudasi chiqindisidan topilgan. 23|ra a \u2014 zarracha chiqarib aktiniyga aylana-Di: 23|ra -> 227As+ne+. Er po&#8217;stining massa jihatidan 110&#8243;10% initashkil etadi. Sof P. ku- mush rang-oq, yaltiroq, bolg&#8217;alanuvchan metall, havoda oksidlanib qorayadi. Zich- ligi 15,4 g\/sm3. Birikmalarda 3 va 5 va- lentli. Kimyoviy xossalariga ko&#8217;ra, ta, Nb, Ti va Zr ga o&#8217;xshaydi.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Protaktiniy (Yun. protos \u2014 bi- rinchi va aktiniy; lot. Protactinium), Pa \u2014 radioaktiv kimyoviy element. Tar-tib raqami 91, at.m. 231,0359, aktino-idlar- ga kiradi. Turg&#8217;un izotopi yo&#8217;q. 12 ta ra- dioaktiv &hellip; <a href=\"https:\/\/milliycha.uz\/ru\/protaktiniy\/\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":99837,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[226],"tags":[],"class_list":["post-118545","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-p-harfi","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"ru","enabled_languages":["uz","kr","ru"],"languages":{"uz":{"title":true,"content":true,"excerpt":false},"kr":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/118545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/comments?post=118545"}],"version-history":[{"count":1,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/118545\/revisions"}],"predecessor-version":[{"id":118607,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/118545\/revisions\/118607"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/media\/99837"}],"wp:attachment":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/media?parent=118545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/categories?post=118545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/tags?post=118545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}