Which element does "Au" represent?

The name is the Anglo-Saxon word for metal and the symbol comes from the Latin ‘aurum’, gold, its symbol is Au. Gold has been known since prehistoric times and was one of the first metals to be worked, mainly because it was to be found as nuggets or as particles in the beds of streams. Such was the demand that by 2000 BC the Egyptians began mining gold. The death mask of Tutankhamen, who died in 1323 BC, contained 100 kg of the metal. The royal graves of ancient Ur (modern Iraq), which flourished from 3800 to 2000 BC, also contained gold objects.

Source: Royal Society of Chemistry