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Tm   -   Thulium (69/168.934)

Material List
Tm (15) Tm2O3 (2) TmB12 (2) TmS (2)
4 material, 21 document(s) are retrieved.
  • Naturally occurring isotopes: 169
  • Density: 9.321 (298.15K) g/cm3
  • Melting point: 1545 ± 15 oC
  • Boiling point: 1727 oC
  • Latent heat of fusion: 109 J/g
  • Specific heat: 0.16 J/g/K (at room temp.)
  • Coefficient of lineal thermal expansion: 1.16E-05 cm/cm/K (at room temp.)
  • Thermal conductivity: 1.69E-01 W/cm/K (at room temp.)
  • Electrical resistivity: 7.90E-05 hm-cm (at room temp.)
  • lonization potential (1st): 6.1844 eV
  • Electronic work function Φ:
  • Oxidation potentials: Tm → Tm3+ + 3e = 2.278 V
  • Chemical valence: 2 3
  • Electrochemical equivalents: 2.101 g/amp-hr
  • lonic radius: 0.869 (Tm3+) angstrom
  • Valence electron potential: 49.7 -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 4f13 5s2 5p6 6s2
  • Valence electrons: 4f13 6s2
  • Crystal form: HCP
  • Half life:
  • Cross section σ: 115 ± 15 barns
  • Vapor pressure: 4.90E-03 Pa (at melting point)