12
24.305 u
Mg
Magnesium
Alkaline Earth Metal
Atomic Structure
Physical State
Group
2
Period
3
Block
s
Electron Configuration
[Ne] 3s²
Physical Properties
Atomic Mass:
24.305 u
Electronegativity:
1.31
Atomic Radius:
173 pm
Ionization Energy:
7.646 eV
Density:
1.738 g/cm³
Melting Point:
923 K
Boiling Point:
1363 K
Historical Information
Discovered By:
Joseph Black
Year Discovered:
1755