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Gold [FR]

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Biographie

(source : Wikipédia)

Element 79 (anthology)}}
Gold is a chemical element; it has symbol Au (from Latin ) and atomic number 79. In its pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements, being the second-lowest in the reactivity series. It is solid under standard conditions.
Gold often occurs in free elemental (native... plus

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