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Au

Gold

Atomic number 79 ยท transition metal ยท Period 6, Group 11

โš›๏ธ
79Atomic Number
โš–๏ธ
196.967Atomic Mass (u)
๐Ÿท๏ธ
transition metalCategory
๐Ÿ”ฌ
AncientDiscovered by

01 About Gold

So unreactive it's found as native metal. All the gold ever mined in history would fit in roughly 3.5 Olympic swimming pools. Relativistic effects make it yellow (not silver).

02 Physical Properties

State at room temperature๐Ÿชจ Solid
Melting point1064.2 ยฐC
Boiling point2856 ยฐC
Density19.3 g/cmยณ
Atomic mass196.967 u
Electron configuration2,8,18,32,18,1
Period / GroupPeriod 6, Group 11
BlockD-block

03 Discovery

Gold has been known since ancient times - its discoverer is recorded as "Ancient".