Sources: Beryllium is found in approximately 30 mineral species, including beryl (3BeO Al2O3 6SiO2), bertrandite (4BeO 2SiO2 H2O), chrysoberyl, and phenacite. The metal may be prepared by reducing beryllium fluoride with magnesium metal.

Element Classification: Alkaline-earth Metal

Density (g/cc): 1.848

Appearance: hard, brittle, steel-gray metal

Atomic Radius (pm): 112

Atomic Volume (cc/mol): 5.0

Covalent Radius (pm): 90

Ionic Radius: 35 (+2e)

Specific Heat (@20°C J/g mol): 1.824

Fusion Heat (kJ/mol): 12.21

Debye Temperature (K): 1000.00

Pauling Negativity Number: 1.57

First Ionizing Energy (kJ/mol): 898.8

Oxidation States: 2

Lattice Structure:Hexagonal