Germanium

Metalloids · Group 14 · Period 4

Atomic properties

Atomic number	32
Symbol	Ge
Standard atomic weight	72.630
Classification	Metalloids
Group	14
Period	4
Block	p-block
Electron configuration	[Ar] 3d10 4s2 4p2
Electronegativity (Pauling)	2.01
Common oxidation states	+4, +2

Physical properties

Phase at 20 °C	Solid
Density	5.323 g/cm³
Melting point	938.25 °C
Boiling point	2833 °C
Discovered	1886
CAS number	—

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