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Re   -   Rhenium (75/186.2)

Material List
  • Naturally occurring isotopes: 187 185
  • Density: 21.04 (293.15K) g/cm3
  • Melting point: 3180 oC
  • Boiling point: 5627 oC
  • Latent heat of fusion: 177.6 J/g
  • Specific heat: 0.137 J/g/K (at room temp.)
  • Coefficient of lineal thermal expansion: 6.70E-06 cm/cm/K (at room temp.)
  • Thermal conductivity: 4.80E-01 W/cm/K (at room temp.)
  • Electrical resistivity: 1.93E-05 hm-cm (at room temp.)
  • lonization potential (1st): 7.88 eV
  • Electronic work function Φ: 4.96
  • Oxidation potentials: Re + 2H2O → ReO2 + 4H+ + 4e = -0.2513 V
  • Chemical valence: 0 1 2 3 4 5 6 7
  • Electrochemical equivalents: 0.9924 g/amp-hr
  • lonic radius: 0.56 angstrom
  • Valence electron potential: 180 -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 4f14 5s2 5p6 5d5 6s2
  • Valence electrons: 5d5 6s2
  • Crystal form: HCP
  • Half life:
  • Cross section σ: 85 ± 5 barns
  • Vapor pressure: 3.24E+01 Pa (at melting point)