Stronsiyum toprak alkali metaller s\u0131n\u0131f\u0131ndan kimyasal bir elementtir. Sr sembol\u00fcyle g\u00f6sterilen, g\u00fcm\u00fc\u015f parlakl\u0131\u011f\u0131nda bir metaldir.\u00a0Periyodik cetvelde 2A grubunda bulunur. Atom numaras\u0131 38, atom a\u011f\u0131rl\u0131\u011f\u0131 87,62 ve yo\u011funlu\u011fu 2.6 g\/cm3t\u00fcr. Stronsiyum 769\u00b0C\u2019de erir, 1384\u00b0C\u2019de kaynar. Kararl\u0131 izotoplar\u0131n\u0131n k\u00fctle numaralar\u0131 84, 86, 87, 88 ve 90\u2019d\u0131r. Oksidasyon say\u0131s\u0131 2+\u2019d\u0131r. Havada b\u0131rak\u0131lan stronsiyum bir s\u00fcre sonra oksijenle yanma reaksiyonu verir. Bu y\u00fczden gazya\u011f\u0131 i\u00e7inde saklan\u0131r.<\/p>\n
Do\u011fada bol bulunmayan stronsiyumun en \u00f6nemli mineralleri s\u00f6lest\u0131n (SrSO4) ve stronsiyanit (SrCO3)tir.\u00a0Stronsiyum ilk defa 1808 senesinde Humphry Davy<\/strong>, civa katot kullanarak elektrolizle stronsiyumu elde etti. Bug\u00fcn \u00e7ok az miktarda \u00fcretilen stronsiyum ya stronsiyum-potasyum klor\u00fcr kar\u0131\u015f\u0131m\u0131n\u0131n elektrolizinden veya stronsiyum oksidin al\u00fcminyumla indirgenmesinden elde edilir.<\/p>\n Stronsiyum’un daha \u00e7ok bile\u015fikleri kullan\u0131l\u0131r. Stronsiyum nitrat, havai veya i\u015faret fi\u015feklerinde ve kibritlerde k\u0131z\u0131l rengin meydana gelmesine sebep olur. Suda \u00e7\u00f6z\u00fcnen tuzlar\u0131 \u015feker \u00fcretiminde, stronsiyum brom\u00fcr (SrBr2) sinir ilac\u0131 olarak kullan\u0131l\u0131r. Stronsiyumla yap\u0131lan sabunlardan makina ya\u011f\u0131 olarak istifade edilir. Stronsiyum s\u00fclf\u00fcr k\u0131ld\u00f6k\u00fcc\u00fc olarak kullan\u0131ld\u0131\u011f\u0131 gibi, luminesans yap\u0131c\u0131 \u00f6zelli\u011finden dolay\u0131 boyalara kat\u0131l\u0131r.<\/p>\n Stronsiyumun 16 izotopundan kararl\u0131 ve en \u00e7ok bulunan\u0131 Sr-88\u2019dir. Radyoaktif izotoplar\u0131ndan 12\u2019si birka\u00e7 dakika veya g\u00fcnde bozunur. Fakat Sr-90 radyoaktif izotopunun yar\u0131lanma s\u00fcresi 28 senedir ve iyi bir beta \u0131\u015f\u0131n\u0131 yay\u0131c\u0131s\u0131d\u0131r. Bu izotop radyoaktif serpintilerin en tehlikeli bile\u015fenidir. Baz\u0131 g\u0131dalarda kalsiyumun yerini alabilen Sr-90, kemiklerde ve di\u015flerde birikebilir. Elektron salmay\u0131 s\u00fcrd\u00fcrd\u00fc\u011f\u00fcnden \u0131\u015f\u0131n\u0131m sebebiyle sa\u011fl\u0131\u011fa zarar verir. Kemik kanserinin tedavisinde belirli dozda radyoaktif stronsiyum kullan\u0131lm\u0131\u015ft\u0131r. Radyoaktif bozunmas\u0131 s\u0131ras\u0131nda a\u00e7\u0131\u011fa \u00e7\u0131kan enerji elektrik enerjisine d\u00f6n\u00fc\u015ft\u00fcr\u00fclebilir. Bu y\u00fczden radyoaktif bozunmalar\u0131n meydana getirdi\u011fi \u0131s\u0131n\u0131n elektri\u011fe \u00e7evrildi\u011fi, yard\u0131mc\u0131 n\u00fckleer g\u00fc\u00e7l\u00fc cihazlarda kullan\u0131labilir. Uydu ve uzay ara\u00e7lar\u0131nda kullan\u0131\u015fl\u0131 bir g\u00fc\u00e7 kayna\u011f\u0131d\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":" Stronsiyum toprak alkali metaller s\u0131n\u0131f\u0131ndan kimyasal bir elementtir. Sr sembol\u00fcyle g\u00f6sterilen, g\u00fcm\u00fc\u015f parlakl\u0131\u011f\u0131nda bir metaldir.\u00a0Periyodik cetvelde 2A grubunda bulunur. Atom numaras\u0131 38, atom a\u011f\u0131rl\u0131\u011f\u0131 87,62 ve yo\u011funlu\u011fu 2.6 g\/cm3t\u00fcr. Stronsiyum…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[92],"tags":[1417,1692],"class_list":["post-3774","post","type-post","status-publish","format-standard","hentry","category-bilim","tag-humphry-davy","tag-stronsiyum"],"_links":{"self":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/3774"}],"collection":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3774"}],"version-history":[{"count":5,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/3774\/revisions"}],"predecessor-version":[{"id":6311,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/3774\/revisions\/6311"}],"wp:attachment":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Stronsiyum Bile\u015fikleri<\/h2>\n