{"id":1504,"date":"2023-07-14T02:11:23","date_gmt":"2023-07-14T02:11:23","guid":{"rendered":"https:\/\/chemuza.org\/tr\/renyum\/"},"modified":"2023-07-14T02:11:23","modified_gmt":"2023-07-14T02:11:23","slug":"renyum","status":"publish","type":"page","link":"https:\/\/chemuza.org\/tr\/renyum\/","title":{"rendered":"Renyum"},"content":{"rendered":"<p>Renyum y\u00fcksek d\u00fczeyde bir dirence sahiptir ve ayn\u0131 zamanda ola\u011fan\u00fcst\u00fc bir i\u015flenebilirlik kapasitesine sahiptir. Bu, eklendi\u011fi ala\u015f\u0131mlara aktar\u0131lan bir durum olan a\u015f\u0131r\u0131 ortamlara maruz kald\u0131\u011f\u0131nda bile sert ve stabil kalmas\u0131n\u0131 sa\u011flar. Ke\u015ffini, \u00f6zelliklerini ve bu bile\u015fenin \u00e7e\u015fitli sekt\u00f6rlerde sa\u011flad\u0131\u011f\u0131 kullan\u0131\u015fl\u0131l\u0131\u011f\u0131 ke\u015ffedin.<\/p>\n<h2> <strong>Renyum nedir?<\/strong><\/h2>\n<p> Sertli\u011fiyle ama her \u015feyden \u00f6nce sundu\u011fu ola\u011fand\u0131\u015f\u0131 \u00f6zelliklerle \u00f6ne \u00e7\u0131kan bir ge\u00e7i\u015f metali bile\u015fenidir. Bunlar\u0131n aras\u0131nda, di\u011fer elementlerinkini a\u015fan y\u00fcksek erime ve kaynama noktalar\u0131 da vard\u0131r.<\/p>\n<h3> <strong>Renyum 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;\">Re<\/span><\/span> Renyum&#8217;a verilen isim Latince Rheus kelimesinden gelir. Romal\u0131lar taraf\u0131ndan Almanya&#8217;n\u0131n en uzun Nehri olan Ren Nehri&#8217;ni belirtmek i\u00e7in kullan\u0131lan terim. \u00c7\u00fcnk\u00fc sular\u0131na yak\u0131n oldu\u011fundan bu metal 1925 y\u0131l\u0131nda ke\u015ffedilmi\u015ftir.<\/p>\n<h2> <strong>Renyumun \u00d6zellikleri<\/strong><\/h2>\n<p> Elektrik ve \u0131s\u0131y\u0131 verimli bir \u015fekilde iletebilen bir metal olarak tan\u0131mlan\u0131r. \u00d6te yandan sahip oldu\u011fu b\u00fcy\u00fck esneklik, \u00e7ok kolay ve k\u0131r\u0131lmadan yuvarlanmas\u0131na veya katlanmas\u0131na olanak tan\u0131r. Di\u011fer \u00f6zellikleri ke\u015ffedin:<\/p>\n<ul>\n<li> <strong>Durumu:<\/strong> Sa\u011flam, olduk\u00e7a yo\u011fun ve dayan\u0131kl\u0131.<\/li>\n<li> <strong>Renk:<\/strong> Do\u011fal formunda karakteristik metalik bir parlakl\u0131\u011fa ve belli bir platin beyaz\u0131 tonuna sahiptir. Baz\u0131 durumlarda daha koyu g\u00f6r\u00fclebilirler.<\/li>\n<li> <strong>\u00c7\u00f6z\u00fcn\u00fcrl\u00fck:<\/strong> Tuzlar, halojen\u00fcrler ve perhenatlar gibi baz\u0131 bile\u015fiklerinin suda \u00e7\u00f6z\u00fcn\u00fcr oldu\u011fu bulunmu\u015ftur.<\/li>\n<li> <strong>Toksisite:<\/strong> Bu metalin \u00fcretti\u011fi baz\u0131 bile\u015fikler, baz\u0131 hayvanlar i\u00e7in son derece zararl\u0131d\u0131r. Ayr\u0131ca u\u00e7ucu ve yan\u0131c\u0131 oksitlere neden olurken di\u011ferleri \u00e7ok az tehlike olu\u015fturur.<\/li>\n<li> <strong>Reaktivite:<\/strong> Kimyasal olarak olduk\u00e7a kararl\u0131d\u0131r, ancak sonunda \u00e7ok y\u00fcksek s\u0131cakl\u0131klarda oksitlenir. Ayn\u0131 \u015fekilde nitrik ve s\u00fclf\u00fcrik asit kullan\u0131m\u0131yla da sald\u0131r\u0131ya u\u011frar.<\/li>\n<li> <strong>Radyoaktivite:<\/strong> Bazen alfa par\u00e7ac\u0131klar\u0131 veya atomlar ve X \u0131\u015f\u0131nlar\u0131 emisyonlar\u0131 \u00fcretmesine ra\u011fmen zay\u0131ft\u0131r.<\/li>\n<li> <strong>Yap\u0131s\u0131:<\/strong> Kristal d\u00fczeni alt\u0131gen \u015feklindedir.<\/li>\n<li> <strong>Kompozisyon:<\/strong><strong> <\/strong>Toplam elektron ve proton say\u0131s\u0131 75&#8217;tir.<\/li>\n<\/ul>\n<h3> <strong>Renyumun kimyasal ve fiziksel \u00f6zellikleri<\/strong><\/h3>\n<ol>\n<li> <strong>Atom numaras\u0131<\/strong> : 75<\/li>\n<li> <strong>D\u00f6nem<\/strong> : 6<\/li>\n<li> <strong>Blok<\/strong> : D<\/li>\n<li> <strong>Grup<\/strong> : 7<\/li>\n<li> <strong>Kovalent yar\u0131\u00e7ap (\u00c5):<\/strong> 159 pm<\/li>\n<li> <strong>Yo\u011funluk:<\/strong> 21,0 kg\/m\u00b3<\/li>\n<li> <strong>Kaynama noktas\u0131:<\/strong> 5596\u00b0C<\/li>\n<li> <strong>Erime noktas\u0131:<\/strong> 3186\u00b0C<\/li>\n<li> <strong>Atom yar\u0131\u00e7ap\u0131:<\/strong> 188<\/li>\n<li> <strong>Ortalama yar\u0131\u00e7ap:<\/strong> 135 saat<\/li>\n<li> <strong>Elektronegatiflik:<\/strong> 1.9<\/li>\n<li> <strong>\u00d6zg\u00fcl \u0131s\u0131:<\/strong> 137 J\/ (kg\u00b7K)<\/li>\n<li> <strong>Elektronik konfig\u00fcrasyon:<\/strong> [Xe]4f145d56s2<\/li>\n<li> <strong>Atom k\u00fctlesi (g\/mol):<\/strong> 186.207 u<\/li>\n<li> <strong>Is\u0131 iletkenli\u011fi:<\/strong> 47,9 W\/ (mK)<\/li>\n<li> <strong>Elektrik iletkenli\u011fi:<\/strong> 5,42 \u00d7 106 m-1 \u03a9-1<\/li>\n<li> <strong>Birinci iyonla\u015fma potansiyeli eV:<\/strong> 7,94<\/li>\n<li> <strong>Katman ba\u015f\u0131na elektron say\u0131s\u0131:<\/strong> 2, 8, 18, 32, 13, 2<\/li>\n<li> <strong>Oksidasyon durumu:<\/strong> 6, 4, 2, -2<\/li>\n<li> <strong>Oksit:<\/strong> Hafif asidik<\/li>\n<\/ol>\n<h2> <strong>Renyumun k\u00f6keni<\/strong><\/h2>\n<p> Dimitri Mendeleyev<strong> <\/strong>Renyumun varl\u0131\u011f\u0131ndan \u015f\u00fcphelenen ilk ki\u015fi oydu. Neredeyse ke\u015ffedecek olmas\u0131na ra\u011fmen, daha sonra hatal\u0131 bir \u015fekilde bunun bir manganez t\u00fcrevi oldu\u011fu sonucuna vard\u0131. Y\u0131llar sonra, 1925 y\u0131l\u0131nda, uzman kimyager Otto Berg ile Ida ve Walter Noddack&#8217;tan olu\u015fan bilim adam\u0131 \u00e7ifti taraf\u0131ndan bir yay\u0131n yay\u0131mland\u0131.<\/p>\n<p> Bu yay\u0131n, son ke\u015fiflerini a\u00e7\u0131kl\u0131yordu; Columbite, Wolframit ve Tantalite ad\u0131 verilen birka\u00e7 mineral aras\u0131nda Renyum elementini tespit etmi\u015flerdi. Ke\u015ffin ger\u00e7ekle\u015fti\u011fi yer, memleketi Almanya&#8217;da Ren Nehri yak\u0131n\u0131ndayd\u0131. <strong>&nbsp;<\/strong><\/p>\n<h2> <strong>Renyum ne i\u00e7in kullan\u0131l\u0131r?<\/strong><\/h2>\n<p> 1968&#8217;de, Amerika Birle\u015fik Devletleri&#8217;nde yap\u0131lan bu metaloidin ekstraksiyonlar\u0131n\u0131n yakla\u015f\u0131k %75&#8217;inin, refrakter metaller i\u00e7in ala\u015f\u0131mlarda kullan\u0131ld\u0131\u011f\u0131 tahmin ediliyordu. O zamandan bug\u00fcne Renyumun kullan\u0131m alanlar\u0131 \u00e7o\u011fald\u0131:<\/p>\n<ul>\n<li> Tak\u0131 yapmak, foto\u011fraf fla\u015flar\u0131 yapmak ve \u00e7e\u015fitli t\u00fcyler \u00fcretmek i\u00e7in kullan\u0131\u015fl\u0131d\u0131r.<\/li>\n<li> Ala\u015f\u0131mlarda katk\u0131 maddesi olarak kullan\u0131ld\u0131\u011f\u0131nda Molibdenin \u00f6zelliklerini geli\u015ftirir. Buna kar\u015f\u0131l\u0131k iyon saya\u00e7lar\u0131n\u0131n imalat\u0131nda ve \u00f6zellikle k\u00fctle spektrografik filamentlerin olu\u015fturulmas\u0131nda kullan\u0131l\u0131rlar.<\/li>\n<li> Kimya end\u00fcstrisinde hidrojenasyon ve dehidrojenasyon proseslerinde ve hatta hidrokrakingde etkili bir kataliz\u00f6r g\u00f6revi g\u00f6r\u00fcr.<\/li>\n<li> Korozyona ve k\u0131smen a\u015f\u0131nmaya dayan\u0131kl\u0131 oldu\u011fundan kontaklarda ve elektrikli par\u00e7alarda g\u00fcvenle kullan\u0131l\u0131r.<\/li>\n<li> Kur\u015funsuz, y\u00fcksek oktanl\u0131 benzin \u00fcreten platinin katalizinde petrol end\u00fcstrisi taraf\u0131ndan kullan\u0131l\u0131r.<\/li>\n<li> Renyum bazl\u0131 s\u00fcper ala\u015f\u0131mlar, end\u00fcstriyel gaz t\u00fcrbinleri ve u\u00e7ak motorlar\u0131 i\u00e7in birden fazla kanad\u0131n \u00fcretilmesine olanak sa\u011flar.<\/li>\n<\/ul>\n<h2> <strong>Renyum nerede bulunur?<\/strong><\/h2>\n<p> En b\u00fcy\u00fck miktarlarda bulundu\u011fu yataklar Asya ve Amerika&#8217;da, \u00f6zellikle Kazakistan ve \u015eili&#8217;dedir. Bug\u00fcn ana madenleri Molibdenit ve Gadolinit&#8217;tir, ancak bunlar ayn\u0131 zamanda Columbite, Tantalite ve di\u011ferlerinde de bulunur.<\/p>\n<p> Ancak yerkabu\u011funda bol miktarda bulunmamas\u0131 ve elementel halde elde edilememesi nedeniyle s\u0131ra d\u0131\u015f\u0131 bir metaldir. Daha ziyade, genellikle molibden izabe tesislerinde sal\u0131nan toz veya par\u00e7ac\u0131klardan elde edilir.<\/p>\n<p> Sonu\u00e7 olarak Renyum elementi 1925&#8217;li y\u0131llarda ke\u015ffedilmi\u015f ve o tarihten bu yana petrol, metalurji ve havac\u0131l\u0131k end\u00fcstrilerinde kullan\u0131lmaktad\u0131r. Y\u00fcksek yo\u011funlu\u011fu, d\u00f6v\u00fclebilirli\u011fi ve \u0131s\u0131ya dayan\u0131kl\u0131l\u0131\u011f\u0131 sayesinde bu t\u00fcr kullan\u0131mlar i\u00e7in ideal bir metaldir.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Renyum y\u00fcksek d\u00fczeyde bir dirence sahiptir ve ayn\u0131 zamanda ola\u011fan\u00fcst\u00fc bir i\u015flenebilirlik kapasitesine sahiptir. Bu, eklendi\u011fi ala\u015f\u0131mlara aktar\u0131lan bir durum olan a\u015f\u0131r\u0131 ortamlara maruz kald\u0131\u011f\u0131nda bile sert ve stabil kalmas\u0131n\u0131 sa\u011flar. Ke\u015ffini, \u00f6zelliklerini ve bu bile\u015fenin \u00e7e\u015fitli sekt\u00f6rlerde sa\u011flad\u0131\u011f\u0131 kullan\u0131\u015fl\u0131l\u0131\u011f\u0131 ke\u015ffedin. Renyum nedir? Sertli\u011fiyle ama her \u015feyden \u00f6nce sundu\u011fu ola\u011fand\u0131\u015f\u0131 \u00f6zelliklerle \u00f6ne \u00e7\u0131kan bir ge\u00e7i\u015f &#8230; <a title=\"Renyum\" class=\"read-more\" href=\"https:\/\/chemuza.org\/tr\/renyum\/\" aria-label=\"More on Renyum\">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>Renyum - 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\/renyum\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Renyum - Chemuza\" \/>\n<meta property=\"og:description\" content=\"Renyum y\u00fcksek d\u00fczeyde bir dirence sahiptir ve ayn\u0131 zamanda ola\u011fan\u00fcst\u00fc bir i\u015flenebilirlik kapasitesine sahiptir. 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Bu, eklendi\u011fi ala\u015f\u0131mlara aktar\u0131lan bir durum olan a\u015f\u0131r\u0131 ortamlara maruz kald\u0131\u011f\u0131nda bile sert ve stabil kalmas\u0131n\u0131 sa\u011flar. Ke\u015ffini, \u00f6zelliklerini ve bu bile\u015fenin \u00e7e\u015fitli sekt\u00f6rlerde sa\u011flad\u0131\u011f\u0131 kullan\u0131\u015fl\u0131l\u0131\u011f\u0131 ke\u015ffedin. Renyum nedir? Sertli\u011fiyle ama her \u015feyden \u00f6nce sundu\u011fu ola\u011fand\u0131\u015f\u0131 \u00f6zelliklerle \u00f6ne \u00e7\u0131kan bir ge\u00e7i\u015f ... 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