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Eu   -   Europium (63/151.96)

Material List
  • Naturally occurring isotopes: 153 151
  • Density: 5.243 (298.15K) g/cm3
  • Melting point: 822 oC
  • Boiling point: 1597 oC
  • Latent heat of fusion: 68.9 J/g
  • Specific heat: 0.182 J/g/K (at room temp.)
  • Coefficient of lineal thermal expansion: 2.60E-05 cm/cm/K (at room temp.)
  • Thermal conductivity: 1.39E-01 W/cm/K (at room temp.)
  • Electrical resistivity: 8.10E-05 hm-cm (at room temp.)
  • lonization potential (1st): 5.666 eV
  • Electronic work function Φ: 2.5
  • Oxidation potentials: Eu → Eu3+ + 3e = 2.407 V
  • Chemical valence: 2 3
  • Electrochemical equivalents: 1.8899 g/amp-hr
  • lonic radius: 0.947 angstrom
  • Valence electron potential: 45.6 -eV
  • Principal quantum number: 6
  • Principal electron shells: K L M N O P
  • Electronic configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f7 5s2 5p6 6s2
  • Valence electrons: 4f7 6s2
  • Crystal form: BCC
  • Half life:
  • Cross section σ: 4100 ± 100 barns
  • Vapor pressure: 1.44E+02 Pa (at melting point)