Element overview
Magnesium (Mg) is element 12 with a listed atomic mass of 24.305 u. It is in group 2 and period 3. Its category is alkaline earth metal.
Atomic properties
Electron configuration: [Ne] 3s2. Electronegativity: 1.31. Common oxidation states: +2.
Physical properties
Density: 1.738; melting point: 923; boiling point: 1363. Values depend on conditions, phase and source.