Lithium has an atomic number of 3, meaning each atom contains 3 protons in its nucleus.
The standard atomic weight of lithium is 6.94 u (unified atomic mass units).
Lithium is classified as a alkali metal.
Lithium is a solid at 20 Β°C (68 Β°F).
The melting point of lithium is 180.5 Β°C / 453.65 K.
The boiling point of lithium is 1341.85 Β°C / 1615 K.
The density of lithium is 0.534 g/cmΒ³ (20Β°C).
Lithium has a Pauling electronegativity of 0.98.
The electron configuration of lithium is [He] 2s1.
Lithium commonly exhibits the following oxidation states: +1.
Lithium was discovered in 1817 by Johan August Arfvedson.
Lithium is a stable element with no naturally occurring radioactive isotopes.
No known essential biological role. Toxic except in very small controlled doses.
Lithium is used for: Rechargeable batteries; Lightweight alloys; Glass ceramics; Lubricants; Mood-stabilizing medicines.