All About Gold

The gold (of the Latin aurum, brilliant) is a chemical element of number atmico 79 (79 prtons and 79 electrons) that is placed in the group 11 (1 B) of the periodic table, and of mass atmica 197 u. His/her symbol is Au (of the Latin aurum).Known from the Antiquity, the gold is used in a widespread way in jewelry store, industry and electronics, as well as reservation of value.Main characteristicsIt is a metal of brilliant transition, yellow, heavy, malleable, ductile (trivalent and

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