Also known as: au.
AU has various meanings in the Science category. Discover the full forms, definitions, and usage contexts of AU in Science.
The astronomical unit is a unit of length, roughly the distance from the Earth to the Sun. The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. The radius of the earth's orbit is defined as one astronomical unit.
ScienceSymbol:"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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