{"id":1435,"date":"2023-07-15T12:08:19","date_gmt":"2023-07-15T12:08:19","guid":{"rendered":"https:\/\/chemuza.org\/tr\/helyum\/"},"modified":"2023-07-15T12:08:19","modified_gmt":"2023-07-15T12:08:19","slug":"helyum","status":"publish","type":"page","link":"https:\/\/chemuza.org\/tr\/helyum\/","title":{"rendered":"Helyum"},"content":{"rendered":"<p>Helyum, \u00e7elik end\u00fcstrisindeki en \u00e7ok y\u00f6nl\u00fc do\u011fal elementlerden biridir ve t\u0131p biliminde n\u00fckleer te\u015fhis cihazlar\u0131n\u0131n \u00e7al\u0131\u015ft\u0131r\u0131lmas\u0131nda faydal\u0131d\u0131r. Ayn\u0131 zamanda uzay havac\u0131l\u0131\u011f\u0131nda, radyasyon monit\u00f6rlerinin ve teleskoplar\u0131n \u00e7al\u0131\u015fmas\u0131nda da \u00f6nemli bir rol oynar.<\/p>\n<h2> <strong>Helyum nedir?<\/strong><\/h2>\n<p> Bu gaz havadan 7 kat daha hafiftir, tad\u0131 ve kokusu yoktur ve renksizdir. Sadece 5 ppm&#8217;lik d\u00fc\u015f\u00fck konsantrasyonlarda s\u00fcspanse edilir. \u0130nerttir, yani reaksiyona girmez (baz\u0131 istisnalar d\u0131\u015f\u0131nda), s\u0131v\u0131larda di\u011fer gazlara g\u00f6re daha az \u00e7\u00f6z\u00fcn\u00fcr ve yan\u0131c\u0131 de\u011fildir. Kaynama noktas\u0131 kimyasal elementler aras\u0131nda en d\u00fc\u015f\u00fck olan\u0131d\u0131r, \u00fcstelik donmaz ve yaln\u0131zca kuvvetli bas\u0131n\u00e7 alt\u0131nda kat\u0131la\u015f\u0131r. Hidrojenden sonra evrende en \u00e7ok bulunan maddedir.<\/p>\n<h3> <strong>Helyum sembol\u00fc<\/strong><\/h3>\n<p> Gaz halindeki bir kimyasal <span class=\"content-chemical-element\" style=\"float: left; width: 65px; height: 65px; border: 3px solid #666; display: flex; justify-content: center; align-items: center; margin-right: 15px;\"><span style=\"font-size: 38px;\">elementtir<\/span><\/span> ve O grubunun bir par\u00e7as\u0131d\u0131r. 2 say\u0131s\u0131 ve 4,0026 standart a\u011f\u0131rl\u0131\u011f\u0131 ile tek atomlu olarak kurulmu\u015ftur. Helyum periyodik tabloda hidrojenin yan\u0131nda 18. s\u0131rada yer al\u0131r ancak p blo\u011funda tam enerji seviyesine sahip oldu\u011fundan soy gaz olarak tan\u0131mlan\u0131r.<\/p>\n<h2> <strong>Helyumun \u00f6zellikleri<\/strong><\/h2>\n<p> T\u00fcrleri \u00e7ok \u00f6zel olan ve a\u015fa\u011f\u0131da a\u00e7\u0131klanan bir gazd\u0131r:<\/p>\n<ul>\n<li> <strong>Kimyasal reaktivite<\/strong> : Son elektronik katman tamamland\u0131\u011f\u0131ndan d\u00fc\u015f\u00fck veya hatta s\u0131f\u0131r.<\/li>\n<li> <strong>Erime ve Kaynama<\/strong> : \u00d6zg\u00fcl \u0131s\u0131s\u0131 \u00e7ok y\u00fcksek ve buhar\u0131 \u00e7ok yo\u011fun oldu\u011fundan oda s\u0131cakl\u0131\u011f\u0131nda h\u0131zla genle\u015fir.<\/li>\n<li> <strong>Durumu<\/strong> : \u00c7o\u011fu zaman gaz halindedir.<\/li>\n<li> <strong>Modifikasyonlar\u0131<\/strong> : -248,15\u00b0C bas\u0131n\u00e7 alt\u0131nda kristalle\u015febilir ve \u00e7ok spesifik s\u0131cakl\u0131klarda s\u0131v\u0131 hale gelebilir.<\/li>\n<li> <strong>S\u0131cakl\u0131k<\/strong> : 1 atm ve 0\u00b0C \u00e7\u00fcnk\u00fc tanecikleri etkile\u015fime girmez.<\/li>\n<li> <strong>Kritik nokta<\/strong> : 5,19 K.<\/li>\n<li> <strong>Hacim<\/strong> : Sadece artan bas\u0131n\u00e7la 3He ve 4He kat\u0131lar\u0131nda.<\/li>\n<\/ul>\n<h2> <strong>Helyumun kimyasal ve fiziksel \u00f6zellikleri<\/strong><\/h2>\n<ol>\n<li> <strong>Atom numaras\u0131<\/strong> : 2<\/li>\n<li> <strong>Kovalent yar\u0131\u00e7ap (\u00c5):<\/strong> 0,93<\/li>\n<li> <strong>Elektronik konfig\u00fcrasyon:<\/strong> 1 s\u00b2<\/li>\n<li> <strong>Atom k\u00fctlesi (g\/mol):<\/strong> 4,0026<\/li>\n<li> <strong>\u0130lk iyonla\u015fma g\u00fcc\u00fc (eV):<\/strong> 24,73<\/li>\n<li> <strong>Havaya ba\u011f\u0131l yo\u011funluk:<\/strong> 0,138 (15\u00b0C)<\/li>\n<li> <strong>Kaynama noktas\u0131:<\/strong> -268,9\u00b0C (4,22K)<\/li>\n<li> <strong>Erime noktas\u0131:<\/strong> -272,2\u00b0C (0,95K) (26 atm)<\/li>\n<li> <strong>S\u0131radan durum:<\/strong> Gaz<\/li>\n<li> <strong>Buharla\u015fma entalpisi:<\/strong> 0,0835 kJ\/mol<\/li>\n<li> <strong>F\u00fczyon entalpisi:<\/strong> 5,23 Kj\/mol<\/li>\n<li> <strong>Ses h\u0131z\u0131:<\/strong> 293,15 K&#8217;da 970 m\/s<\/li>\n<li> <strong>Molek\u00fcl a\u011f\u0131rl\u0131\u011f\u0131:<\/strong> 4,00026 g\/mol<\/li>\n<\/ol>\n<h2> <strong>Helyumun k\u00f6keni<\/strong><\/h2>\n<p> Bu elementin ismi Yunanca g\u00fcne\u015f anlam\u0131na gelen Helios kelimesinden gelmektedir. Ger\u00e7ekten de 1868&#8217;de g\u00fcne\u015f tutulmas\u0131 meydana gelirken g\u00fcne\u015f koronas\u0131n\u0131n spektrumunda ke\u015ffedildi. \u0130ngiltere ve \u0130sve\u00e7&#8217;ten g\u00f6kbilimciler Pierre Janssen ve Norman Lockyer, Hindistan&#8217;\u0131n \u00fczerinde sar\u0131 bir \u00e7izgi fark ederek varl\u0131\u011f\u0131n\u0131 do\u011frulad\u0131lar.<\/p>\n<p> 1895 y\u0131l\u0131nda, Helyum gaz elementi, baz\u0131 inorganik asitlerle reaksiyona giren klaveit (uranyum cevheri) koleksiyonu sayesinde kimyager William Ramsay taraf\u0131ndan D\u00fcnya&#8217;da ke\u015ffedildi ve izole edildi. William Crookes ve Lockyer ise yeni elementin dalga boyunun 587,49 nm oldu\u011funu do\u011frulad\u0131lar. Hemen hemen ayn\u0131 zamanda kimyagerler Per Theodor Cleve ve Nils Langlet onu klaveitten ba\u011f\u0131ms\u0131z olarak izole etmeyi ba\u015fard\u0131lar.<\/p>\n<h2> <strong>Helyum ne i\u00e7in kullan\u0131l\u0131r?<\/strong><\/h2>\n<p> Siz fark etmeseniz bile, en b\u00fcy\u00fc\u011f\u00fcnden g\u00fcnl\u00fck kullan\u0131ma kadar bir\u00e7ok kullan\u0131m alan\u0131 vard\u0131r. Genel olarak a\u015fa\u011f\u0131daki alanlarda kullan\u0131l\u0131r:<\/p>\n<h3> <strong>Bilim ve Teknoloji<\/strong><\/h3>\n<p> Mikroskoplar ve s\u00fcper iletken m\u0131knat\u0131slar olu\u015fturmak, manyetik rezonans g\u00f6r\u00fcnt\u00fcleri olu\u015fturmak i\u00e7in kullan\u0131lm\u0131\u015f ve nanoteknolojide uygulamalar\u0131 bulunmaktad\u0131r.<\/p>\n<h3> <strong>Havac\u0131l\u0131k faaliyeti<\/strong><\/h3>\n<p> Bu eleman ile uydu par\u00e7alar\u0131n\u0131n bak\u0131m\u0131 yap\u0131l\u0131r, yak\u0131t \u00fcretilir ve roket motorlar\u0131 temizlenir. Ayr\u0131ca NASA&#8217;n\u0131n Apollo uzay arac\u0131nda s\u0131v\u0131 hidrojen ve oksijeni so\u011futmak i\u00e7in de kullan\u0131ld\u0131.<\/p>\n<h3> <strong>N\u00fckleer enerji<\/strong><\/h3>\n<p> \u00c7in gibi baz\u0131 \u00fclkeler, helyumun ba\u015frol oynad\u0131\u011f\u0131 g\u00fcne\u015f eylemini veya n\u00fckleer f\u00fczyonu yeniden \u00fcretmek istiyor. Ama\u00e7 temiz ve neredeyse t\u00fckenmez enerji yaratmakt\u0131r. Zaten ellerinde \u00e7ok geli\u015fmi\u015f bir cihaz yani HL-2M diye bilinen tokamak yani yapay g\u00fcne\u015f var.<\/p>\n<h3> <strong>End\u00fcstriyel kullan\u0131m<\/strong><\/h3>\n<p> Hidrolik dald\u0131rma veya bas\u0131n\u00e7 testinin yeterli olmad\u0131\u011f\u0131 durumlarda bas\u0131n\u00e7land\u0131rma, vakum ve ultra vakum teknikleri kullan\u0131larak s\u0131z\u0131nt\u0131lar\u0131n tespit edilmesinde kullan\u0131l\u0131r. Ayn\u0131 zamanda inert oldu\u011fundan argon gibi ark kayna\u011f\u0131nda da yayg\u0131n olarak kullan\u0131l\u0131r.<\/p>\n<p> Y\u00fcksek iyonizasyon kapasitesi, daha fazla \u0131s\u0131 girdisine izin vererek, al\u00fcminyum ve di\u011fer kal\u0131n malzemelerin kayna\u011f\u0131nda Ar\/He kar\u0131\u015f\u0131mlar\u0131n\u0131 m\u00fcmk\u00fcn k\u0131lar. \u00d6te yandan germanyum, silikon, titanyum ve zirkonyum kristallerinin \u00fcretiminde de koruyucu bir gazd\u0131r.<\/p>\n<h3> <strong>G\u00fcndelik Ya\u015fam<\/strong><\/h3>\n<p> Ticari yazarkasa barkodlar\u0131 Helyum ve neondan yap\u0131lm\u0131\u015ft\u0131r. Ayr\u0131ca t\u00fcpl\u00fc dal\u0131\u015f tank\u0131 kar\u0131\u015f\u0131mlar\u0131nda da kullan\u0131l\u0131r. Ayr\u0131ca hava gemilerinin ve \u00fcnl\u00fc parti balonlar\u0131n\u0131n doldurulmas\u0131nda da kullan\u0131l\u0131r.<\/p>\n<h2> Helyum hakk\u0131nda daha fazla bilgi<\/h2>\n<h2> <strong>Helyum nerede bulunur?<\/strong><\/h2>\n<p> Do\u011fal gaz\u0131n \u00e7\u0131kar\u0131lmas\u0131ndan gelir, dolay\u0131s\u0131yla ikincisinin bir yan \u00fcr\u00fcn\u00fcd\u00fcr. Bu gaz\u0131n tek ba\u015f\u0131na depolanmas\u0131 zordur ve i\u015flem son derece pahal\u0131d\u0131r. Bu elementin \u00fcreten \u00fclkeleri Amerika Birle\u015fik Devletleri, Cezayir, Katar ve Rusya&#8217;d\u0131r.<\/p>\n<p> Sonu\u00e7 olarak Helyum d\u00fcnyadaki en hafif ikinci gazd\u0131r. Bu durum onu nesli t\u00fckenme tehlikesiyle kar\u015f\u0131 kar\u015f\u0131ya olan do\u011fal unsurlardan biri olarak i\u015faret ediyor.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Helyum, \u00e7elik end\u00fcstrisindeki en \u00e7ok y\u00f6nl\u00fc do\u011fal elementlerden biridir ve t\u0131p biliminde n\u00fckleer te\u015fhis cihazlar\u0131n\u0131n \u00e7al\u0131\u015ft\u0131r\u0131lmas\u0131nda faydal\u0131d\u0131r. Ayn\u0131 zamanda uzay havac\u0131l\u0131\u011f\u0131nda, radyasyon monit\u00f6rlerinin ve teleskoplar\u0131n \u00e7al\u0131\u015fmas\u0131nda da \u00f6nemli bir rol oynar. Helyum nedir? Bu gaz havadan 7 kat daha hafiftir, tad\u0131 ve kokusu yoktur ve renksizdir. Sadece 5 ppm&#8217;lik d\u00fc\u015f\u00fck konsantrasyonlarda s\u00fcspanse edilir. \u0130nerttir, yani &#8230; <a title=\"Helyum\" class=\"read-more\" href=\"https:\/\/chemuza.org\/tr\/helyum\/\" aria-label=\"More on Helyum\">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>Helyum - 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\/helyum\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Helyum - Chemuza\" \/>\n<meta property=\"og:description\" content=\"Helyum, \u00e7elik end\u00fcstrisindeki en \u00e7ok y\u00f6nl\u00fc do\u011fal elementlerden biridir ve t\u0131p biliminde n\u00fckleer te\u015fhis cihazlar\u0131n\u0131n \u00e7al\u0131\u015ft\u0131r\u0131lmas\u0131nda faydal\u0131d\u0131r. 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