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Rhenium
Electron Configuration 2,8,18,32,13,2
Electron Configuration [Xe]] 4f14 5d5 6s2
Electronegativity 1.9
Enthalpy of Fusion 33.1 kJ mol-1
Enthalpy of Vaporisation 704.25 kJ mol-1
Heat Capacity 25.48 J mol-1 K-1
Thermal Conductivity 48.0 W m-1 K-1
Thermal Expansion 6.2 μm m-1 K-1
Magnetic ordering No data
Electrical resistivity 193 Ω m
Speed of sound 4700 m s-1
Young's modulus 463 GPa
Shear modulus 4700 GPa
Bulk modulus 370 GPa
Poisson ratio 0.30
Mohs hardness 7.0
Vickers hardness 2450 MPa
Brinell hardness 1320 MPa
Atomic Radii
Atomic Radius 135 pm
Bohr Radius 188 pm
Covalent Radius 159 pm
Van der Waals 0 pm
Oxidation States
Main Re+3, Re+4, Re+5
Other Re-3, Re-1, Re0, Re+1, Re+2, Re+6, Re+7
Ionisation Energies (kJ mol-1) show graph
M - M+ 760
M+ - M2+ 1260
M2+ - M3+ 2510
M3+ - M4+ 3640
M4+ - M5+ 4900
M5+ - M6+ 6300
M6+ - M7+ 7600