Beryllium has an atomic number of 4, meaning each atom contains 4 protons in its nucleus.
The standard atomic weight of beryllium is 9.0122 u (unified atomic mass units).
Beryllium is classified as a alkaline earth metal.
Beryllium is a solid at 20 Β°C (68 Β°F).
The melting point of beryllium is 1286.85 Β°C / 1560 K.
The boiling point of beryllium is 2467.85 Β°C / 2741 K.
The density of beryllium is 1.85 g/cmΒ³ (20Β°C).
Beryllium has a Pauling electronegativity of 1.57.
The electron configuration of beryllium is [He] 2s2.
Beryllium commonly exhibits the following oxidation states: +2.
Beryllium was discovered in 1798 by Louis Nicolas Vauquelin.
Beryllium is a stable element with no naturally occurring radioactive isotopes.
No known biological role.
Beryllium is used for: Copper and nickel alloys; Aerospace components; X-ray windows; Nuclear reactor neutron reflectors.