Also known as: au.
AU has various meanings in the Colour category. Discover the full forms, definitions, and usage contexts of AU in Colour.
Symbol:"Au" Atomic Number:"79" Atomic Mass: 196.97amu. Gold is one of the transition elements. Gold is one of the Earth's precious metals. You will find the yellow colored metal used in jewelry, electronics, coins, satellites, and even medicines. Gold is very non-reactive and will not oxidize in air.
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