32 Ge 72.6308

Germanium

METALLOID

Phase: Solid

Discovered: Clemens Winkler

Block: P

Summary

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.

Appearance: grayish-white

Source: Wikipedia

Physical Properties

Atomic Mass 72.6308 u

Density 5.323 g/cm³

Melting Point 1211.4 K

Boiling Point 3106 K

Molar Heat 23.222 J/(mol·K)

Electron Affinity 118.9352 kJ/mol

Ionization Energies

1^st: 762 kJ/mol

2^nd: 1537.5 kJ/mol

3^rd: 3302.1 kJ/mol

4^th: 4411 kJ/mol

5^th: 9020 kJ/mol