Metally: Khrom, Titan, Plutonii , Zhelezo, Olovo, Uran, Obedne Nnyi Uran, Skandii , Tsirkonii , Kalii , Svinets, Nikel , Gafnii Source Wikipedia

ISBN: 9781232435822

Published: September 9th 2011

Paperback

108 pages


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Metally: Khrom, Titan, Plutonii , Zhelezo, Olovo, Uran, Obedne Nnyi Uran, Skandii , Tsirkonii , Kalii , Svinets, Nikel , Gafnii  by  Source Wikipedia

Metally: Khrom, Titan, Plutonii , Zhelezo, Olovo, Uran, Obedne Nnyi Uran, Skandii , Tsirkonii , Kalii , Svinets, Nikel , Gafnii by Source Wikipedia
September 9th 2011 | Paperback | PDF, EPUB, FB2, DjVu, AUDIO, mp3, RTF | 108 pages | ISBN: 9781232435822 | 3.77 Mb

Istochnik: Wikipedia. Stranitsy: 106. Glavy: Khrom, Titan, Plutonii, Zhelezo, Olovo, Uran, Obedne nnyi uran, Skandii, Tsirkonii, Kalii, Svinets, Nikel, Gafnii, Tugoplavkie metally, Tsink, Marganets, Vismut, Molibden, Ittrii, Niobii, Vanadii, Kadmii,MoreIstochnik: Wikipedia. Stranitsy: 106. Glavy: Khrom, Titan, Plutonii, Zhelezo, Olovo, Uran, Obedne nnyi uran, Skandii, Tsirkonii, Kalii, Svinets, Nikel, Gafnii, Tugoplavkie metally, Tsink, Marganets, Vismut, Molibden, Ittrii, Niobii, Vanadii, Kadmii, Kobal t, Ununkvadii, Tantal, Tallii, Borii, Siborgii, Ununtrii, Unungeksii, Khassii, Tekhnetsii, Tyazhe lye metally, Berklii, Nobelii, Kalifornii, Ununpentii, Uran po stranam, Dubnii, Rezerfordii, Mendelevii, Neptunii, Ei nshtyei nii, Fermii, Lourensii, Myei tnerii, Metallicheskaya svyaz, Ununennii, Magnitomyagkie materialy.

Vyderzhka: Pluto nii (oboznachaet sya simvolom Pu- atomnoe chislo 94) - tyazhe lyi khrupkii radioaktivnyi metall serebristo-belogo tsveta. V periodicheskoi tablitse raspolagaet sya v semyei stve aktinoidov. Dlya elementa kharakterny sushchestvenno otlichayushchiesya ot ostal nykh elementov strukturnye i fiziko-khimicheskie svoi stva. Plutonii imyeet sem allotropnykh modifikatsii pri opredele nnykh temperaturakh i diapazonakh davleniya:,,,, , i . Mozhet prinimat stepeni okisleniya ot +2 do +7, osnovnymi schitayut sya +4, +5, +6. Plotnost var iruet sya ot 19,8 ( -Pu) do 15,9 g/sm ( -Pu).

Stabil nykh izotopov ne imyeet. Prirodnymi izotopami plutoniya schitayut sya samyi dolgozhivushchii izotop iz vsekh transuranovykh elementov Pu i Pu . V prirode nakhodit sya pryeimushchestvenno v vide dioksida (PuO2), kotoryi v vode yeshche menyee rastvorim, chem pesok (kvarts). Nakhozhdenie elementa v prirode nastol ko malo, chto yego dobycha netselesoobrazna. Shiroko ispol zuet sya v proizvodstve yadernogo oruzhiya (t.

n. oruzhyei nyi plutonii ), yadernogo topliva dlya atomnykh ryeaktorov grazhdanskogo i issledovatel skogo naznacheniya i v kachestve istochnika energii dlya kosmicheskikh apparatov. Vtoroi posle neptuniya (oshibochno poluchen v 1934 godu gruppoi E. Fermi- pervyi izotop Np sintezirovan i identifitsirovan v mae 1940 goda E. Makmill...



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