Gold is an element with atomic symbol as Au and with atomic number as 79. In its cleanest form, it is a dense, bright, marginally reddish yellow, delicate, malleable, and ductile element.
Chemically, it is a transition element and element of group 11. It is one of the least reactive elements and is solid under standard conditions.
Gold often occurs in free elemental form, as grains, in rocks, in veins, and in alluvial deposits.
Gold has a density of 19.3 g/cm3.Oxidation state of gold ranges from −1 to +5. Gold has been broadly used all through the world as money, for indirect exchange.
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