Germanium


Electron Configuration

General Properties

Atomic Symbol Ge
Atomic Weight 72.61 g/mol
Element Number 32
Standard State Solid
Standard Type Strongly Basic
Date of Discovery 1886
Discoverer Winkler

Physical Properties

Oxidation States 4
Boiling Point 3107 K
Melting Point 1211.5 K
Density 5.32 g/cm³
Electron Configuration [Ar]3d10,4s2,p2
Acid/Base Properties Amphoteric
Crystal Structure Cubic, face centered
Electronegativity 2.01
Heat of Vaporization 334.3 kJ/mol
Heat of Fusion 31.8 kJ/mol
Electrical Conductivity 4x10e-4 10^6omg-¹cm-¹
Thermal Conductivity 59.9 Wm-¹K-¹ (at 300 K)
Specific Heat Capacity 0.32 Jg-¹K-¹ (at 300 K)
First Ionization Potential 7.899
Atomic Volume 13.60 cm³/mol
Atomic Radius 1.37 Å
Covalent Radius 1.22 Å
Synthetic No