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Tb   -   Terbium (65/158.925)

Material List
  • Naturally occurring isotopes: 159
  • Density: 8.229 (298.15K) g/cm3
  • Melting point: 1356 oC
  • Boiling point: 3123 oC
  • Latent heat of fusion: 102.7 J/g
  • Specific heat: 0.182 J/g/K (at room temp.)
  • Coefficient of lineal thermal expansion: 1.18E-05 cm/cm/K (at room temp.)
  • Thermal conductivity: 1.11E-01 W/cm/K (at room temp.)
  • Electrical resistivity: 1.16E-04 hm-cm (at room temp.)
  • lonization potential (1st): 5.85 eV
  • Electronic work function Φ: 3
  • Oxidation potentials: Tb → Tb3+ + 3e = 2.391 V
  • Chemical valence: 3 4
  • Electrochemical equivalents: 1.9765 g/amp-hr
  • lonic radius: 0.923 (Tb3+) angstrom
  • Valence electron potential: 46.8 -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 4f9 5s2 5p6 6s2
  • Valence electrons: 4f9 6s2
  • Crystal form: HCP
  • Half life:
  • Cross section σ: 30 ± 10 barns
  • Vapor pressure: Pa (at melting point)