Germanium (Ge)

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.

Atomic Number

32

Atomic Mass

72.63 u

Category

metalloid

Phase

solid

Density

5.323 g/cm³

Electron Shells

2, 8, 18, 4

Atomic Structure

Protons: 32 • Electrons: 32 • Neutrons: Varies by isotope

Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p²

Discovery

1886 • Clemens Winkler