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plutonium
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plutonium

Radioactive chemical element with symbol Pu and atomic number 94

Chemical elementchemical elementradioactive elementQ1102

Also known as 94Pu · element 94

Symbol
Atomic number
  • 94
Mass
Melting point
  • 913 K
Boiling point
  • 3,509 K
Density
  • 18,532.1 kg/m³
Discovered by
Discovered
  • 1941

Overview

All data

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

Named after
Electronegativity
  • 1.28
Canonical SMILES
Formula
Unicode character
Part of
Ionic radius
  • 1 ångström charge number: 3 · coordination number: 6
  • 0.86 ångström charge number: 4 · coordination number: 6
  • 0.74 ångström charge number: 5 · coordination number: 6
  • 0.71 ångström charge number: 6 · coordination number: 6
Thermal conductivity
  • 6.74 watt per metre kelvin
Electrical conductivity
  • 680,000 siemens per metre
Specific heat capacity
  • 130 joule per kilogram kelvin
Speed of sound
  • 2,260 m/s
Subclass of
Has characteristic
Linear thermal expansion coefficient
  • 49.6 micrometre per metre kelvin temperature: 20°C
Ionization energy
Electron configuration
IPA transcription
Oxidation state
  • 4
  • 2
  • 3
  • 5
  • 6
  • 7
  • 8
Crystal system
Atomic radius
  • 175 picometre
Covalent radius
  • 187 picometre

On other databases

71 identifiers linking plutonium across the web's reference databases