Details : Item 215

Alkali metals
Alkaline earth metal
Transition metals I
Transition metals II
Transition metals III
Transition metals IV
Post-transition metal
Diatomic non-metal
Noble gas

Famille : Transition metals III/1
Symbol: Fe, phase: solid, lustrous metallic with a grayish
tinge. By mass the most common element on Earth. A
human has about 4 grams of iron in his body. Pure iron is
relatively soft but steel (iron + carbon alloy) is 1000x harder.
Atomic number26
Atomic weight55.845
Melting point (K)1811
Boiling point (K)3134
Speed of sound (m/s)5120
Discoverybefore 5000BC