The symbol for gold in the periodic table is "Au." This symbol is derived from the Latin word for gold, "aurum." Gold is classified as a transition metal and is chemically inert, which means it does not easily react with other elements. It is prized for its luster, malleability, and resistance to tarnishing, making it an ideal material for jewelry and various industrial applications. Gold has been used throughout history as a form of currency, investment, and a standard for monetary systems.