{"id":1518,"date":"2023-07-13T19:49:27","date_gmt":"2023-07-13T19:49:27","guid":{"rendered":"https:\/\/chemuza.org\/tr\/radyo\/"},"modified":"2023-07-13T19:49:27","modified_gmt":"2023-07-13T19:49:27","slug":"radyo","status":"publish","type":"page","link":"https:\/\/chemuza.org\/tr\/radyo\/","title":{"rendered":"Radyo"},"content":{"rendered":"<p>Uranyum ve Toryumun radyoaktif ayr\u0131\u015fmas\u0131n\u0131n bir \u00fcr\u00fcn\u00fc olan Radyum kimyasal elementi kayalarda ve toprakta k\u00fc\u00e7\u00fck oranlarda da\u011f\u0131l\u0131r. Havada ve suda seyahat ederek bitki ve hayvanlarla temas ederek insanlar\u0131 bu metale maruz b\u0131rak\u0131r. \u00d6zellikleri aras\u0131nda 13 izotopa b\u00f6l\u00fcnm\u00fc\u015f y\u00fcksek radyoaktivite yer al\u0131r. Bu element, k\u00f6keni, nas\u0131l elde edildi\u011fi ve insanlar i\u00e7in kullan\u0131m\u0131 hakk\u0131nda daha fazla bilgi edinin.<\/p>\n<h2> <strong>Yar\u0131\u00e7ap nedir?<\/strong><\/h2>\n<p> Periyodik tabloda 88 numaras\u0131yla i\u015faretlenmi\u015f toprak alkali bir metaldir. Renkleri beyaz olmas\u0131na ra\u011fmen havayla temas etti\u011finde siyaha d\u00f6nerler. Uranyumdan daha yumu\u015fak, yan\u0131c\u0131 ve \u00e7ok radyoaktif bir metal olmas\u0131yla karakterize edilir. Aralar\u0131nda en kararl\u0131 olan\u0131 Ra-226 olan ve Radon elementinin \u00fcretildi\u011fi 13 izotoptan olu\u015fur.<\/p>\n<h3> <strong>Yar\u0131\u00e7ap sembol\u00fc<\/strong><\/h3>\n<p> <span class=\"content-chemical-element\" style=\"float: left;width: 65px;height: 65px;border: 3px solid #666; display:flex;\n    justify-content: center;align-items: center;margin-right: 15px;\"><span style=\"font-size: 38px;\">Ra<\/span><\/span> Ad\u0131 Latincede y\u0131ld\u0131r\u0131m anlam\u0131na gelen radius kelimesinden gelmektedir. Ka\u015fifleri taraf\u0131ndan g\u00f6r\u00fclen g\u00fc\u00e7l\u00fc radyoaktivite nedeniyle bu ismi alm\u0131\u015ft\u0131r. Curie bilim adamlar\u0131, daha \u00f6nce hi\u00e7 g\u00f6r\u00fclmemi\u015f spektral \u00e7izgilere sahip, parlak k\u0131rm\u0131z\u0131 bir alevi yans\u0131tan radyoaktif bir baryum ba\u011flant\u0131s\u0131 yapt\u0131lar.<\/p>\n<h2> <strong>Radyo \u00f6zellikleri<\/strong><\/h2>\n<p> Bu grubun en a\u011f\u0131r toprak alkalisidir ve \u00fc\u00e7 \u015fekilde radyasyon yayar. Beta, alfa ve gama \u0131\u015f\u0131nlar\u0131 y\u00fcksek s\u0131cakl\u0131klarda kalan bile\u015fikler olu\u015fturur. Bu elementin di\u011fer \u00f6zellikleri \u015funlard\u0131r:<\/p>\n<ul>\n<li> <strong>Durum<\/strong> : Parlak, yumu\u015fak metalik kat\u0131.<\/li>\n<li> <strong>Renk<\/strong> : Parlak beyazd\u0131r ancak havada siyaha d\u00f6ner.<\/li>\n<li> <strong>Tat ve koku<\/strong> : Kokusuzdur ve karakteristik tad\u0131 yoktur.<\/li>\n<li> <strong>Toksisite<\/strong> : Orta d\u00fczeydedir ancak b\u00fcy\u00fck miktarlarda insanlar\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde etkiler.<\/li>\n<li> <strong>Reaktivite<\/strong> : Y\u00fcksek, suyla h\u0131zla reaksiyona girerek hidroksitler olu\u015fturur. Ayr\u0131ca baryum varl\u0131\u011f\u0131nda patlay\u0131c\u0131d\u0131r.<\/li>\n<li> <strong>Yap\u0131s\u0131<\/strong> : K\u00fcbik, t\u00fcm v\u00fccuda odaklanm\u0131\u015ft\u0131r.<\/li>\n<li> <strong>\u00c7\u00f6z\u00fcn\u00fcrl\u00fck<\/strong> : Suda \u00e7\u00f6z\u00fcn\u00fcr ancak olu\u015fturdu\u011fu tuzlar\u0131n \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011f\u00fc d\u00fc\u015f\u00fckt\u00fcr.<\/li>\n<li> <strong>Bile\u015fimi:<\/strong> \u00c7ekirde\u011finde 138 n\u00f6tron ve 88 elektron ve protondan olu\u015fur.<\/li>\n<\/ul>\n<h2> <strong>Radyumun kimyasal ve fiziksel \u00f6zellikleri<\/strong><\/h2>\n<ol>\n<li> <strong>Atom numaras\u0131<\/strong> : 88<\/li>\n<li> <strong>D\u00f6nem<\/strong> : 7<\/li>\n<li> <strong>Blok<\/strong> : S<\/li>\n<li> <strong>Grup<\/strong> : 2<\/li>\n<li> <strong>Oksidasyon durumu<\/strong> : 2<\/li>\n<li> <strong>Yo\u011funluk:<\/strong> 5500 Kg\/ <sup>m3<\/sup><\/li>\n<li> <strong>Erime noktas\u0131:<\/strong> 700\u00b0C<\/li>\n<li> <strong>Atom yar\u0131\u00e7ap\u0131:<\/strong> 215 pm<\/li>\n<li> <strong>Elektronegatiflik:<\/strong> 0,9<\/li>\n<li> <strong>\u00d6zg\u00fcl \u0131s\u0131:<\/strong> 94 J \/ (K kg)<\/li>\n<li> <strong>Kovalent yar\u0131\u00e7ap (\u00c5):<\/strong> 221<strong> <\/strong>\u00f6\u011fleden sonra<\/li>\n<li> <strong>Kaynama noktas\u0131:<\/strong> 1737\u00b0C<\/li>\n<li> <strong>Elektronik konfig\u00fcrasyon:<\/strong> [Rn] 7s2<\/li>\n<li> <strong>Atom k\u00fctlesi (g\/mol):<\/strong> 226.0254 u<\/li>\n<li> <strong>Birinci iyonla\u015fma potansiyeli<\/strong> (eV): 509,3 kJ\/mol<\/li>\n<li> <strong>Kabuk ba\u015f\u0131na elektron say\u0131s\u0131:<\/strong> 2, 8, 18, 32, 18, 8, 2<\/li>\n<li> <strong>Is\u0131 iletkenli\u011fi:<\/strong> 18,6 W\/(Km)<\/li>\n<\/ol>\n<h2> <strong>Ray orijinali<\/strong><\/h2>\n<p> Radyum, 1898 y\u0131l\u0131nda Kuzey Bohemya&#8217;da Marie ve Pierre Curie \u00e7ifti taraf\u0131ndan ke\u015ffedildi. \u00c7ift, Uraninit mineralini incelerken radyoaktif malzemeye rastlad\u0131. Daha sonra baryumla bir kombinasyon ger\u00e7ekle\u015ftirerek parlak k\u0131rm\u0131z\u0131 \u0131\u015f\u0131nlar elde ettiler. 1910 y\u0131l\u0131nda Marie Curie elementi saf klor\u00fcr\u00fcn elektrolizi ile izole etti ve saf metalin bir \u00f6rne\u011fini elde etti.<\/p>\n<h2> <strong>Radyo ne i\u00e7indir?<\/strong><\/h2>\n<p> Radyumun y\u00fcksek radyoaktivitesi nedeniyle kullan\u0131m\u0131 azal\u0131r. Ge\u00e7mi\u015fte l\u00fcminesansl\u0131 saat boyalar\u0131nda kullan\u0131lm\u0131\u015f ancak i\u015f\u00e7i sa\u011fl\u0131\u011f\u0131na olumsuz etkileri nedeniyle terkedilmi\u015ftir. Ancak elementin do\u011fru kullan\u0131m\u0131 konusunda y\u0131llar s\u00fcren ara\u015ft\u0131rmalardan sonra fizik sekt\u00f6r\u00fcnde berilyum ile birlikte n\u00f6tronlar\u0131n olu\u015fturulmas\u0131nda ve emisyonlar\u0131nda kullan\u0131lmaktad\u0131r.<\/p>\n<p> Ek olarak, radyum klor\u00fcr t\u0131p alan\u0131nda kansere y\u00f6nelik radyoterapi tedavisi olarak kullan\u0131lmaktad\u0131r. K\u00f6t\u00fc huylu h\u00fccreleri yava\u015f yava\u015f yok etmek i\u00e7in kullan\u0131l\u0131r. Bunun yan\u0131 s\u0131ra, kristalleri karanl\u0131kta yans\u0131tan parlak ye\u015file boyamak i\u00e7in kristal yap\u0131m\u0131nda kullan\u0131lmas\u0131 da yayg\u0131nd\u0131r.<\/p>\n<h2> <strong>Yar\u0131\u00e7ap nas\u0131l al\u0131n\u0131r?<\/strong><\/h2>\n<p> Uranyum ve Toryum minerallerinin ayr\u0131\u015fmas\u0131yla elde edilir. Metalin \u00e7\u0131kar\u0131lmas\u0131 i\u00e7in bir y\u0131kama yap\u0131l\u0131r, bu da Brom\u00fcr elementinin elde edilmesini m\u00fcmk\u00fcn k\u0131lar. Daha sonra saf bir \u00f6rnek elde edilene kadar izole edilir.<\/p>\n<p> Ek olarak, bunu elde etmenin ba\u015fka bir yolu da saf radyoklor\u00fcr\u00fcn indirgenmi\u015f c\u0131va katot veya elektrotta \u00e7\u00f6z\u00fcnm\u00fc\u015f elektrolizidir. \u0130\u015flem s\u0131ras\u0131nda, hidrojen atmosferinde dam\u0131t\u0131lan ve saf bir metal numunesi elde edilen bir amalgam elde edilir.<\/p>\n<h2> <strong>Radyumun sa\u011fl\u0131\u011fa etkileri nelerdir?<\/strong><\/h2>\n<p> Bu element \u00e7evrede minimum miktarlarda bulunur ve sa\u011fl\u0131k a\u00e7\u0131s\u0131ndan olumsuz etkilere neden olmaz. Ancak uzun s\u00fcreli maruz kalma kansere, anemiye, katarakta, di\u015f k\u0131r\u0131lmalar\u0131na ve hatta \u00f6l\u00fcme neden olur. Etkilerin ortaya \u00e7\u0131kmas\u0131 zaman al\u0131r \u00e7\u00fcnk\u00fc gama radyasyonu havada yava\u015f yava\u015f yay\u0131l\u0131r.<\/p>\n<p> \u00d6zetle, bu alkali toprak metali, yer kabu\u011funda minimum oranlarda bulunan olduk\u00e7a radyoaktif bir elementtir. Yayd\u0131\u011f\u0131 radyasyon nedeniyle kansere kar\u015f\u0131 radyoterapi olarak d\u00fc\u015f\u00fck dozlarda t\u00fcm\u00f6rler yok edilinceye kadar kullan\u0131l\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uranyum ve Toryumun radyoaktif ayr\u0131\u015fmas\u0131n\u0131n bir \u00fcr\u00fcn\u00fc olan Radyum kimyasal elementi kayalarda ve toprakta k\u00fc\u00e7\u00fck oranlarda da\u011f\u0131l\u0131r. Havada ve suda seyahat ederek bitki ve hayvanlarla temas ederek insanlar\u0131 bu metale maruz b\u0131rak\u0131r. \u00d6zellikleri aras\u0131nda 13 izotopa b\u00f6l\u00fcnm\u00fc\u015f y\u00fcksek radyoaktivite yer al\u0131r. Bu element, k\u00f6keni, nas\u0131l elde edildi\u011fi ve insanlar i\u00e7in kullan\u0131m\u0131 hakk\u0131nda daha fazla bilgi &#8230; <a title=\"Radyo\" class=\"read-more\" href=\"https:\/\/chemuza.org\/tr\/radyo\/\" aria-label=\"More on Radyo\">Devam\u0131n\u0131 oku<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Radyo - Chemuza<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/chemuza.org\/tr\/radyo\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Radyo - Chemuza\" \/>\n<meta property=\"og:description\" content=\"Uranyum ve Toryumun radyoaktif ayr\u0131\u015fmas\u0131n\u0131n bir \u00fcr\u00fcn\u00fc olan Radyum kimyasal elementi kayalarda ve toprakta k\u00fc\u00e7\u00fck oranlarda da\u011f\u0131l\u0131r. 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