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Ge   -   Germanium (32/72.59)

Material List
  • Naturally occurring isotopes: 74 72 70 73 76
  • Density: 5.323 (298.15K) g/cm3
  • Melting point: 937.4 oC
  • Boiling point: 2830 oC
  • Latent heat of fusion: 438.3 J/g
  • Specific heat: 0.3216 J/g/K (at room temp.)
  • Coefficient of lineal thermal expansion: 5.85E-06 cm/cm/K (at room temp.)
  • Thermal conductivity: 6.67E-01 W/cm/K (at room temp.)
  • Electrical resistivity: 4.70E+01 hm-cm (at room temp.)
  • lonization potential (1st): 7.899 eV
  • Electronic work function Φ: 5
  • Oxidation potentials: Ge + 2H2O → GeO2 + 4H+ + 4e = -0.15 V
  • Chemical valence: -4 2 4
  • Electrochemical equivalents: 0.6771 g/amp-hr
  • lonic radius: 0.53 (Ge4+) angstrom
  • Valence electron potential: 109 -eV
  • Principal quantum number: 4
  • Principal electron shells: K L M N
  • Electronic configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p2
  • Valence electrons: 4s2 4p2
  • Crystal form: Cubic Diamond
  • Half life:
  • Cross section σ: 2.30 ± 0.26 barns
  • Vapor pressure: Pa (at melting point)