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Atomic Number	4

Atomic Symbol	Be

Atomic Weight	9.012182 amu

Group	Alkaline Earth, 2

Form	Solid

Density @ STP	1.85 g/cm³

Melting Point	1287 °C (2348.6 °F, 1560.2 °K)

Boiling Point	2471 °C (4479.8 °F, 2744.2 °K)

Heat of Fusion	7.895 kJ/mol

Heat of Vaporization	297 kJ/mol

First Ionization Potential	9.32263 eV

Electronegativity (on Pauling scale	1.57

Specific Heat Capacity	1.825 J/g K

Ground State Electron Configuration	2s²

Oxidation State(s)	+2

Stable Isotopes and Natural Abundance on Earth	⁹Be, 100%

Selected Radioisotopes	⁷Be

Atomic Radius	112 pm

Crystal Structure	Hexagonal

Discovered by	Vauquelin, 1798