marganets i ego soedineniya
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slayd 1 marganets i ego soedineniya naxojdenie v prirode v zemnoy kore - okolo 0,1 % margantsa po masse. v svobodnom vide marganets ne vstrechaetsya. iz rud naibolee rasprostraneni: pirolyuzit - mno2(63,2 %), manganit - mno2·mn(oh)2 (62,5 %), braunit - mn2o3 (69,5 %), rodoxrozit - mnco3 (47,8 %), psilomelan - mmno·mno2·nh2o (45—60%). pirolyuzit manginit braunit rodoxrozit psilomelan naxojdenie v prirode marganets soderjat margantsevie konkretsii, kotorie naxodyatsya na dne tixogo, atlanticheskogo i indiyskogo okeanov. v morskoy vode soderjitsya okolo 1,0·10–8 % margantsa. naxojdenie v prirode mn 55 25 + 25 ) ) ) ) 1s² 2 8 13 2 2s² 2p 3s² 3p 3d 4s² n=1 ↓↑ n=4 n=3 n=2 ↑ ↑ ↑ ↓↑ ↓↑ ↓↑ ↓↑ ↓↑ ↓↑ ↓↑ ↓↑ …
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