Germanium

Metalloid · atomic number 32

3272.6308GeGermaniumSolidMetalloid

Germanium is a chemical element with symbol Ge and atomic number 32. It is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Purified germanium is a semiconductor, with an appearance most similar to elemental silicon.

Properties of Germanium

Element category	Metalloid
Atomic number	32
Atomic mass	72.6308 u
Phase at STP	Solid
Group	14
Period	4
Block	p
Electron configuration	[Ar] 3d10 4s2 4p2
Electrons per shell	2, 8, 18, 4
Electronegativity (Pauling)	2.01
Melting point	1211.4 K (938 °C)
Boiling point	3106 K (2833 °C)
Density	5.323 g/cm3
Discovered by	Clemens Winkler

← Gallium · Periodic table · Arsenic → As

About the metalloid group

In-between elements that behave as semiconductors: silicon, germanium and boron underpin electronics, glass and solar cells.

Data: Periodic-Table-JSON (CC BY-SA 3.0) · stored statically on our server. https://en.wikipedia.org/wiki/Germanium

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