{"id":1489,"date":"2023-07-14T07:32:29","date_gmt":"2023-07-14T07:32:29","guid":{"rendered":"https:\/\/chemuza.org\/tr\/soz\/"},"modified":"2023-07-14T07:32:29","modified_gmt":"2023-07-14T07:32:29","slug":"soz","status":"publish","type":"page","link":"https:\/\/chemuza.org\/tr\/soz\/","title":{"rendered":"S\u00f6z"},"content":{"rendered":"<p>Son derece nadirdir ve D\u00fcnya&#8217;n\u0131n mantosunda bulunmaz, ancak b\u00fcy\u00fck tak\u0131my\u0131ld\u0131z Andromeda&#8217;da bol miktarda bulunur. Bu nedenle 2 elementin b\u00f6l\u00fcnmesiyle yapay olarak \u00fcretilir. Promethium metalinin bile\u015fimini daha iyi anlamak i\u00e7in bu makale, anlaman\u0131z gereken en \u00f6nemli kavramlar\u0131 sunmaktad\u0131r.<\/p>\n<h2> <strong>Prometyum nedir?<\/strong><\/h2>\n<p> Promethium periyodik tablonun 61 numaral\u0131 kutusunda bulunur ve yakla\u015f\u0131k 75 y\u0131l \u00f6nce sentetik bir ge\u00e7i\u015f metali bile\u015feni olarak belirlenmi\u015ftir. Bu hem aktinit kategorisine hem de lantanit serisine uyuyor.<\/p>\n<h3> <strong>Prometyum 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;\">Pm<\/span><\/span> S\u0131fat\u0131, mitolojik bir Titan&#8217;\u0131n ad\u0131 oldu\u011fu ortaya \u00e7\u0131kan Yunanca prometheus teriminden gelmektedir. Yunan mitolojisine g\u00f6re Prometheus, ate\u015fi tanr\u0131lardan \u00e7al\u0131p insanlara g\u00f6stermek i\u00e7in sinsi bir hile planlad\u0131. Metal, Yunan masal\u0131nda bahsedilen ate\u015fe benzer benzersiz bir parlakl\u0131k yay\u0131yor, bu y\u00fczden b\u00f6yle bir ismin se\u00e7ildi\u011fine inan\u0131l\u0131yor.<\/p>\n<h2> <strong>Prometyumun \u00f6zellikleri<\/strong><\/h2>\n<p> Radyoaktif bir bile\u015fen ve orta d\u00fczeyde bir beta yay\u0131c\u0131 olarak, a\u00e7\u0131\u011fa \u00e7\u0131kard\u0131\u011f\u0131 \u0131\u015f\u0131k \u0131\u015f\u0131n\u0131m\u0131yla karakterize edilir. Bu, beyaz\u0131ms\u0131 mavi bir renk alabilir ve karanl\u0131kta a\u00e7\u0131k ye\u015file d\u00f6nebilir. Di\u011fer dikkate de\u011fer \u00f6zellikler \u015funlard\u0131r:<\/p>\n<ul>\n<li> <strong>Durumu:<\/strong> Sa\u011flam bir \u00fcr\u00fcnd\u00fcr ancak kendi grubundaki di\u011fer \u00fcr\u00fcnlerle kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda biraz yumu\u015fakt\u0131r. <strong>&nbsp;<\/strong><\/li>\n<li> <strong>Renk:<\/strong> G\u00fcm\u00fc\u015fi alanlarla birlikte beyaz\u0131ms\u0131 mavi g\u00f6r\u00fcn\u00fcmde olmas\u0131na ra\u011fmen karanl\u0131kta ye\u015filimsi bir parlakl\u0131k yay\u0131yor.<\/li>\n<li> <strong>Toksisite:<\/strong> orta. Zehirli radyoaktif at\u0131k \u00fcretir ve bu nedenle dikkatli kullan\u0131lmal\u0131d\u0131r.<\/li>\n<li> <strong>Reaktivite:<\/strong> En reaktif element olarak an\u0131l\u0131r.<\/li>\n<li> <strong>Radyoaktivite:<\/strong> Bu metaloidin bilinen izotoplar\u0131n\u0131n her biri radyoaktiftir.<\/li>\n<li> <strong>Yap\u0131s\u0131:<\/strong> Alt\u0131gen kristal d\u00fczenine sahiptir.<\/li>\n<li> <strong>Bile\u015fimi:<\/strong> Atomik yap\u0131s\u0131 61 elektron ve ayn\u0131 say\u0131da protondur.<\/li>\n<\/ul>\n<h2> <strong>Promethium&#8217;un kimyasal ve fiziksel \u00f6zellikleri<\/strong><\/h2>\n<ol>\n<li> <strong>Atom numaras\u0131<\/strong> : 61<\/li>\n<li> <strong>D\u00f6nem<\/strong> : 6<\/li>\n<li> <strong>Blok<\/strong> : F<\/li>\n<li> <strong>Grup<\/strong> : 3<\/li>\n<li> <strong>Kovalent yar\u0131\u00e7ap (\u00c5):<\/strong> Veri yok<\/li>\n<li> <strong>Atom k\u00fctlesi (g\/mol):<\/strong> 147 u<\/li>\n<li> <strong>Yo\u011funluk:<\/strong> 7264 kg\/m\u00b3<\/li>\n<li> <strong>Kaynama noktas\u0131:<\/strong> 3273<strong> <\/strong>\u00b0C<\/li>\n<li> <strong>Erime noktas\u0131:<\/strong> 1373<strong> <\/strong>\u00b0C<\/li>\n<li> <strong>Atom yar\u0131\u00e7ap\u0131:<\/strong> 145<\/li>\n<li> <strong>Ortalama yar\u0131\u00e7ap:<\/strong> 185 saat<\/li>\n<li> <strong>\u00d6zg\u00fcl \u0131s\u0131:<\/strong> 180 J \/ (K kg)<\/li>\n<li> <strong>Katman ba\u015f\u0131na elektron say\u0131s\u0131:<\/strong> 2, 8, 18, 23, 8, 2<\/li>\n<li> <strong>Elektronik konfig\u00fcrasyon:<\/strong> Xe]4f <sup>5<\/sup> 6s <sup>2<\/sup><\/li>\n<li> <strong>Birinci iyonla\u015fma potansiyeli eV:<\/strong> 540 kJ\/mol<\/li>\n<li> <strong>Is\u0131 iletkenli\u011fi:<\/strong> 17,9 W \/ (K m)<\/li>\n<li> <strong>Elektronegatiflik:<\/strong> 1.13<\/li>\n<li> <strong>Oksidasyon durumu:<\/strong> +3<\/li>\n<li> <strong>Pas:<\/strong> Biraz basit<\/li>\n<li> <strong>Elektriksel iletkenlik:<\/strong> Veri yok<\/li>\n<\/ol>\n<h2> <strong>Promethium&#8217;un K\u00f6keni<\/strong><\/h2>\n<p> Elementin varl\u0131\u011f\u0131 1902&#8217;de Bohuslav Brauner taraf\u0131ndan tahmin edildi. On y\u0131ldan fazla bir s\u00fcre sonra, 1914&#8217;te bu olay fizik\u00e7i Henry Moseley taraf\u0131ndan do\u011fruland\u0131. Ancak bile\u015fenin karada elde edilmesi i\u00e7in yap\u0131lan ara\u015ft\u0131rmalar sonu\u00e7 vermedi.<\/p>\n<p> Bir s\u00fcre sonra, 1941&#8217;de Ohio \u00dcniversitesi&#8217;nde, aralar\u0131nda Promethium elementinin de bulundu\u011fu bir dizi radyoaktif bile\u015fik ke\u015ffedildi. Ancak di\u011fer bile\u015fenlerden izole edilmesinin \u00e7ok zor olmas\u0131 nedeniyle bulgular\u0131n do\u011frulu\u011fu do\u011frulanamad\u0131.<\/p>\n<p> Sonunda Charles Corywell, Lawrence Glendenin ve en \u00fcnl\u00fc Jacob Marinsky, 1944&#8217;te elementin varl\u0131\u011f\u0131na dair k\u00fc\u00e7\u00fck bir kan\u0131t sunmay\u0131 ba\u015fard\u0131lar. Ve 1946&#8217;da, uranyumun b\u00f6l\u00fcnmesinden elde edilen yan \u00fcr\u00fcnleri inceledikten sonra onu izole etmeyi ba\u015faran Tennessee&#8217;deki Clinton Laboratuvarlar\u0131nda ke\u015fiflerini \u00fcstlendiler.<\/p>\n<h2> <strong>Promethium ne i\u00e7in kullan\u0131l\u0131r?<\/strong><\/h2>\n<p> Bu metaloidin kullan\u0131m\u0131 n\u00fckleer ve end\u00fcstriyel d\u00fczeyle ilgilidir. Radyoaktif \u00f6zellikleri sayesinde uygulamalar\u0131n\u0131n b\u00fcy\u00fck de\u011fer ta\u015f\u0131d\u0131\u011f\u0131 sekt\u00f6rler. Bu nedenle Promethium&#8217;un ana kullan\u0131m alanlar\u0131 \u015funlard\u0131r:<\/p>\n<ul>\n<li> Mobil bir X-\u0131\u015f\u0131n\u0131 kayna\u011f\u0131 olarak hizmet eder, termoelektrik radyoizotop \u00fcreticilerinde kullan\u0131l\u0131r. Elde edilen enerji ise denizalt\u0131larla ileti\u015fim ustalar\u0131na y\u00f6neliktir.<\/li>\n<li> \u00c7e\u015fitli uzay sondalar\u0131na ve uydulara yard\u0131mc\u0131 g\u00fc\u00e7 sa\u011flar.<\/li>\n<li> Bir\u00e7ok kalp pili bu metal bile\u015fenle yap\u0131lm\u0131\u015ft\u0131r. Sadece k\u00fc\u00e7\u00fck bir k\u0131sm\u0131 taraf\u0131ndan \u00fcretilen g\u00fc\u00e7le, bu cihazlar\u0131 tam on y\u0131l boyunca bile \u00e7al\u0131\u015ft\u0131rabilirsiniz.<\/li>\n<li> \u00d6zellikle \u00e7e\u015fitli bile\u015fiklerin ve malzemelerin kal\u0131nl\u0131k \u00f6l\u00e7\u00fcmleri i\u00e7in esas olarak bir beta kayna\u011f\u0131 olarak kullan\u0131l\u0131r.<\/li>\n<li> N\u00fckleer tahrik veya \u00e7eki\u015f i\u00e7in ideal, g\u00fc\u00e7l\u00fc bir pil olarak kullan\u0131l\u0131r.<\/li>\n<\/ul>\n<h2> <strong>Promethium nerede bulunur ve nas\u0131l \u00fcretilir?<\/strong><\/h2>\n<p> Do\u011fada bulunmayan lantanit kategorisine ait tek metaldir. Asl\u0131nda yaln\u0131zca Andromeda tak\u0131my\u0131ld\u0131z\u0131n\u0131n y\u0131ld\u0131z spektrumunda bulunur. Elde edilmesi ve \u00fcretimi ile ilgili olarak, Uranyum veya Pl\u00fctonyumun bozunmas\u0131n\u0131n yan \u00fcr\u00fcnlerinden geri kazan\u0131lmas\u0131 yayg\u0131nd\u0131r. Ek olarak neodim 146&#8217;n\u0131n n\u00f6tronlarla bombard\u0131man\u0131 veya bombard\u0131man\u0131 yoluyla da \u00fcretilebilir.<\/p>\n<p> Sonu\u00e7 olarak, bu \u00f6zel sentetik element yaln\u0131zca uzayda bulunur ve bu nedenle yapay olarak \u00fcretilir. \u00d6te yandan Promethium en reaktif metaldir ve izole edilmesi en zor olan\u0131d\u0131r. N\u00fckleer sekt\u00f6rdeki kullan\u0131\u015fl\u0131l\u0131\u011f\u0131yla ilgili olarak beta kayna\u011f\u0131 olarak ve uzay sondalar\u0131na ve uydulara g\u00fc\u00e7 sa\u011flamak i\u00e7in kullan\u0131l\u0131yor.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Son derece nadirdir ve D\u00fcnya&#8217;n\u0131n mantosunda bulunmaz, ancak b\u00fcy\u00fck tak\u0131my\u0131ld\u0131z Andromeda&#8217;da bol miktarda bulunur. Bu nedenle 2 elementin b\u00f6l\u00fcnmesiyle yapay olarak \u00fcretilir. Promethium metalinin bile\u015fimini daha iyi anlamak i\u00e7in bu makale, anlaman\u0131z gereken en \u00f6nemli kavramlar\u0131 sunmaktad\u0131r. Prometyum nedir? Promethium periyodik tablonun 61 numaral\u0131 kutusunda bulunur ve yakla\u015f\u0131k 75 y\u0131l \u00f6nce sentetik bir ge\u00e7i\u015f metali &#8230; <a title=\"S\u00f6z\" class=\"read-more\" href=\"https:\/\/chemuza.org\/tr\/soz\/\" aria-label=\"More on S\u00f6z\">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>S\u00f6z - 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\/soz\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u00f6z - Chemuza\" \/>\n<meta property=\"og:description\" content=\"Son derece nadirdir ve D\u00fcnya&#8217;n\u0131n mantosunda bulunmaz, ancak b\u00fcy\u00fck tak\u0131my\u0131ld\u0131z Andromeda&#8217;da bol miktarda bulunur. 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