Electronic data
Shells: 2, 8, 18, 32, 14, 2
Orbitals: [Xe] 4f14 5d6 6s2
Electronegativity: 2.2, 1.5
1. Ionization potential: 8.7 eV
2. Ionization potential: -- eV
3. Ionization potential: -- eV
Oxidation states: 8, 6, 4, 3, 2, 0, -2
Electrical conductivity: 0.109 10^6
Thermal data
Melting point: 3054 °C
Boiling point: 5027 °C
Specific heat: 0.13 J/gK
Heat of fusion: 31.80 kJ/mol
Heat of vaporization: 746.0 kJ/mol
Thermal conductivity: 0.876 W/cmK
Steric data
Atomic radius: 1.92 Å
Ionic radius: 0.63 Å (+4)
Covalent radius: 1.26 Å
Atomic volume: 8.49 cm³/mol
Density (293 K): 22.40 g/cm³
Crystal structure: hexagonal
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