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Gadolinium
Electron Configuration 2,8,18,25,9,2
Electron Configuration [Xe]] 4f7 5d1 6s2
Electronegativity 1.2
Enthalpy of Fusion 15.5 kJ mol-1
Enthalpy of Vaporisation 301 kJ mol-1
Heat Capacity 37.03 J mol-1 K-1
Thermal Conductivity 10.6 W m-1 K-1
Thermal Expansion 9.4 μm m-1 K-1
Magnetic ordering Ferromagnetic
Electrical resistivity 1.310 Ω m
Speed of sound 2680 m s-1
Young's modulus 54.8 GPa
Shear modulus 2680 GPa
Bulk modulus 37.9 GPa
Poisson ratio 0.259
Vickers hardness 570 MPa
Atomic Radii
Atomic Radius 180 pm
Bohr Radius 233 pm
Covalent Radius 161 pm
Van der Waals 0 pm
Oxidation States
Main Gd+2, Gd+3
Other
Ionisation Energies (kJ mol-1) show graph
M - M+ 592.5
M+ - M2+ 1167
M2+ - M3+ 1990
M3+ - M4+ 4250