*atomic #31*
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(elemental ‘gallium’ does not occur in free form in nature, but as the ‘gallium (III)’ compounds that are in trace amounts in ‘zinc ores’ and in ‘bauxite’)
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(‘gallium’ was discovered spectroscopically by french chemist ‘paul emile lecoq de boisbaudran’ in 1875 by its characteristic spectrum (two violet lines) in an examination of a sphalerite sample)
(later that year, ‘lecoq’ obtained the ‘free metal’ by ‘electrolysis’ of its ‘hydroxide’ in ‘potassium hydroxide solution’)
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(he named the element “gallia”, from latin “gallia” meaning “gaul”, after his native land of ‘france’)
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*SKETCHES*
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