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Ho   -   Holmium (67/164.93)

Material List
  • Naturally occurring isotopes: 165
  • Density: 8.795 (298.15K) g/cm3
  • Melting point: 1474 oC
  • Boiling point: 2695 oC
  • Latent heat of fusion: 104.1 J/g
  • Specific heat: 0.165 J/g/K (at room temp.)
  • Coefficient of lineal thermal expansion: 9.50E-06 cm/cm/K (at room temp.)
  • Thermal conductivity: 1.62E-01 W/cm/K (at room temp.)
  • Electrical resistivity: 8.70E-05 hm-cm (at room temp.)
  • lonization potential (1st): 6.02 eV
  • Electronic work function Φ:
  • Oxidation potentials: Ho → Ho3+ + 3e = 2.319 V
  • Chemical valence: 3
  • Electrochemical equivalents: 2.0512 g/amp-hr
  • lonic radius: 0.901 (Ho3+) angstrom
  • Valence electron potential: 47.9 -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 4f11 5s2 5p6 6s2
  • Valence electrons: 4f11 6s2
  • Crystal form: HCP
  • Half life:
  • Cross section σ: 65 ± 2 barns
  • Vapor pressure: Pa (at melting point)