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germanium
Image: Wikimedia Commons

germanium

Chemical element with symbol Ge and atomic number 32

Chemical elementchemical elementchalcophile elementQ867

Also known as Ge · 32Ge · element 32

Symbol
Atomic number
Mass
Melting point
  • 1,211.4 K
Boiling point
  • 3,106 K
Density
  • 5,280.21 kg/m³
Discovered by
Discovered
  • 1886

Overview

All data

141 statements · 27% with external sources · numbers in brackets are citations

Named after
Electronegativity
  • 2.01
Oxidation state
  • 2
  • 4
  • -4
  • -3
  • -2
  • -1
  • 1
  • 3
Show 1 more
  • 0
Subclass of
Formula
Canonical SMILES
Location of discovery
Standard molar entropy
Electrical conductivity
Unicode character
Part of
Found in taxon
Different from
Ionic radius
  • 0.73 ångström charge number: 2 · coordination number: 6
  • 0.39 ångström charge number: 4 · coordination number: 4
  • 0.53 ångström charge number: 4 · coordination number: 6
Made from material
Space group
Crystal system
Bulk modulus
  • 57.9B Pa
Shear modulus
  • 45.1B Pa
Poisson's ratio
  • 0.191
Thermal conductivity
  • 60 watt per metre kelvin
Specific heat capacity
  • 308.3 joule per kilogram kelvin
Speed of sound
  • 5,400 m/s
Point group
Mohs' hardness
  • 6
Has characteristic
Linear thermal expansion coefficient
  • 5.79 micrometre per metre kelvin temperature: 20°C
Ionization energy
Electron configuration
IPA transcription
  • dʒərˈmeɪniəm language: English
Atomic radius
  • 125 picometre
Covalent radius
  • 120 picometre

On other databases

69 identifiers linking germanium across the web's reference databases