Gold is a chemical element. It has the element symbol Au and the atomic number 79. It stands in the periodic table of the elements in the 1st subgroup (copper group) and belongs to the transition metals. Gold was one of the first metals processed by humans. More than 40 percent of the gold mined comes from China, Australia, the United States and Canada. Gold most often occurs as a native metal in nature. © 2017 SUBSTRATEC. All Rights Reserved.