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Sm   -   Samarium (62/150.4)

Material List
  • Naturally occurring isotopes: 152 154 147 149 148 150 144
  • Density: 7.520 (298.15K) g/cm3
  • Melting point: 1077 oC
  • Boiling point: 1791 oC
  • Latent heat of fusion: 73.8 J/g
  • Specific heat: 0.196 J/g/K (at room temp.)
  • Coefficient of lineal thermal expansion: cm/cm/K (at room temp.)
  • Thermal conductivity: 1.33E-01 W/cm/K (at room temp.)
  • Electrical resistivity: 8.80E-05 hm-cm (at room temp.)
  • lonization potential (1st): 5.63 eV
  • Electronic work function Φ: 2.7
  • Oxidation potentials: Sm → Sm3+ + 3e = 2.414 V
  • Chemical valence: 2 3
  • Electrochemical equivalents: 1.87 g/amp-hr
  • lonic radius: 0.964 angstrom
  • Valence electron potential: 44.8 -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 4f6 5s2 5p6 6s2
  • Valence electrons: 4f6 6s2
  • Crystal form: Rhombohedral
  • Half life:
  • Cross section σ: 5820 ± 100 barns
  • Vapor pressure: 5.63E+02 Pa (at melting point)