-- card: 22420 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 14320
-- name: Ga


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Ga

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Gallium

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31

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69.72

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5.904

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29.78

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2403

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+2,+3

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(L. Gallia, France; L. gallus) Discovered spectroscopically by Lecoq de Boisbaudran in 1875. Found as a trace element is diaspore, sphalerite germanite, bauxite and coal. One of the only elements which is a liquid near room temperature besides Hg, Cs and Rb. 

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used in high temperature thermometers, forms a mirror when painted on glass, doping in semiconductors, transistors, gallium arsenide converts electricity into coherent light, alloying

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silvery metal, liquid near room temperature, long liquid range for a metal, low vapor pressure at high temperatures, can supercool near its freezing point 

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0.12

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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   10   2   1