Element overview
Lithium (Li) is element 3 with a listed atomic mass of 6.94 u. It is in group 1 and period 2. Its category is alkali metal.
Atomic properties
Electron configuration: [He] 2s1. Electronegativity: 0.98. Common oxidation states: +1.
Physical properties
Density: 0.534; melting point: 453.65; boiling point: 1603. Values depend on conditions, phase and source.