01 About Iron
The most abundant element (by mass) in Earth - its iron core generates our magnetic field that shields us from solar wind. Steel changed civilisation.
02 Physical Properties
State at room temperature๐ชจ Solid
Melting point1538 ยฐC
Boiling point2861 ยฐC
Density7.874 g/cmยณ
Atomic mass55.845 u
Electron configuration2,8,14,2
Period / GroupPeriod 4, Group 8
BlockD-block
03 Discovery
Iron has been known since ancient times - its discoverer is recorded as "Ancient".