-- card: 20320 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 14320
-- name: Cr


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Cr

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Chromium

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24

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51.996

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7.19

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1857

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2672

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+2,+3,+6

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(Gr. chroma, color) Discovered by Vanquelin in 1797. Found as chromite ore in Zimbabwe, USSR, Transvaal, Turkey, Iran, Albania, Finland, Madagascar and the Philipines.

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steel gray, lustrous, transition metal, hard, all compounds are colored, compounds are toxic.

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harden and manufacture steel, alloying, plating to produce hard surface and prevent corrosion, tanning leather, lead chromate is a yellow pigment, textile industry as mordants, aircraft industry for anodizing aluminum, oxidizing agents

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0.118

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Electron Configuration:

1s  2s  2p  3s  3p  3d  4s  4p  4d  4f  5s  5p  5d  5f  6s  6p  6d  6f  7s 
 2   2    6    2    6    5   1