The periodic table/Gold

Discovery
Gold was discovered in ancient times. One reason for why Gold is so precious is the fact that Gold can stay perfect/shiny for a long time. Pop a penny in a dusty place in your car, that penny is disgusting! While a Roman gold coin is still shiny after years and years.

Quick Facts
Name: gold atom

Symbol: Au

Atomic Mass: 196.9665

Classification: transition metal

Protons: 79

Neutrons: 118

Electrons: 79

Colour: gold

Discovery in: ancient

Density: 19.3 g/cc

Crystal Structure: cubic

Melting Point: 1064.18 °C (1337.33 K, 1947.52 °F)

Boiling Point: 2856 °C (3129 K, 5173 °F)

Common Uses: jewelery, dentistry, electronics, medicine, glass, awards, decorations