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terbium
Image: Wikimedia Commons

terbium

Chemical element with symbol Tb and atomic number 65

Chemical elementchemical elementQ1838

Also known as element 65 · 65Tb · Tb

Symbol
Atomic number
Mass
Melting point
  • 1,624 K
Boiling point
  • 3,396 K
Density
  • 8,067.24 kg/m³
Discovered by
Discovered

Overview

All data

120 statements · 25% with external sources · numbers in brackets are citations

Named after
Location of discovery
Canonical SMILES
Formula
Unicode character
Electronegativity
  • 1.2
Part of
Ionic radius
  • 0.92 ångström charge number: 3 · coordination number: 6
  • 1.04 ångström charge number: 3 · coordination number: 8
  • 0.76 ångström charge number: 4 · coordination number: 6
  • 0.88 ångström charge number: 4 · coordination number: 8
Made from material
Space group
Crystal system
Bulk modulus
  • 38.4B Pa
Shear modulus
  • 23.9B Pa
Poisson's ratio
  • 0.243
Thermal conductivity
  • 11 watt per metre kelvin
Electrical conductivity
  • 870,000 siemens per metre
Speed of sound
  • 2,620 m/s
Subclass of
Point group
Has characteristic
Ionization energy
Electron configuration
IPA transcription
Oxidation state
  • 3
  • 0
  • 1
  • 2
  • 4
Atomic radius
  • 175 picometre
Covalent radius
  • 194 picometre

On other databases

58 identifiers linking terbium across the web's reference databases