The periodic table lists 118 different chemical elements. And yet, for thousands of years, humans have really, really liked one of them in particular: gold. A chemist explains.

According to the Royal Society of Chemistry, there are 94 metals. Of them all, gold is perhaps the most well-known. It can be found on the periodic table with the symbol “Au.” ...

Classroom and educational resources to engage students ages 15–18 with the periodic table. Classroom and educational resources to engage students ages 15–18 with the periodic table. Skip to Main ...

Every element in the periodic table gives off a certain amount of visible light. It’s this light that makes it easy to tell gold (Au) and silver (Ag) apart.