RENIY

RENIY (lotini Ketish), Re, elementi khimiyavi az guruhi VII sistemai davrin Mendeleev; raqami atomiash 75, massai atomiash 186,207. Renii tabii du izotop dorad: izotopi sobiti |iKe (37,07%) va sustradioaktivi shKe (T72 == 10i sol). Reniyro hanuz soli 1871 Dmitriy Ivanovich Mendeleev peshguy karda boshad ham onro soli 1925 khimikhoi nemis I. va V. Nodak avvalin bor oshkor namuda, az nomi daryoi Reyn (dar Germaniya) Reniy nomidand.

Reniy elementi kamyoft buda, 7*10-v%-i massai qishri Zaminro tashkil medihad. Az mineralhoi Reniy faqat oksid, sulfid va sulforenati mis (SiKe§4) malumand. Reniy metalli khokistarii ravshan,  gudozish 3180±20°Selsiya, I jushish 5900°Selsiya, zichiash 21030 kilogramm/metr3; metalli nihoyat dushvorgudoz. Dar qabati beruniash haft elektron dorad            Dar harorati muqarrari dar havo oksid nameshavad, ammo hangomi garm kardan dar harorati 300—600°Selsiya va az in ziyod oksidhoi KeOe, Kea07 hosil menamoyad. Bo nitrogen va karbon ba reaksiya dokhil nameshavad. Dar harorati baland bo khloru ftor va bughoi sulfur ba reaksiya rafta, KeS1d, KeG6, KeZa hosil mekunad. Ishqorhoi gudokhta Reniyro tez hal menamoyand. Binobar dushvorgudoz budanash az Reniy va khulahoi on asbobhoi elektroni, termoparaho, kontakthoi elektri, asbobhoi daqiq va gayra mesozand.  Khulahoi Reniyro bo \U, Mo, Ta dar tekhnikai kayhoni «a aviasiya istifoda mebarand. Khudi Reniy va payvasthoi on katalizatori khubi prosessi krekingi neft meboshand.