Element overview
Aluminium (Al) is element 13 with a listed atomic mass of 26.9815385 u. It is in group 13 and period 3. Its category is post-transition metal.
Atomic properties
Electron configuration: [Ne] 3s2 3p1. Electronegativity: 1.61. Common oxidation states: +3.
Physical properties
Density: 2.7; melting point: 933.47; boiling point: 2792. Values depend on conditions, phase and source.