Discover the history, structure, and importance of the periodic table of elements ... The atomic symbol for gold is "Au" because the word for gold in Latin is "aurum." Atomic mass: The standard ...

Copper has been used by humans for as much as 7000 years and elements such as gold, silver ... line in the diagram of the periodic table above separates the metals, on the left, from non-metals ...

100% of gold found naturally is isotope Au-197. 28 other isotopes can be produced artificially and are all radioactive. Gold along with silver and copper, form a column in the periodic table. They are ...