Electronic data
Shells: 2, 8, 18, 32, 15, 2
Orbitals: [Xe] 4f14 5d7 6s2
Electronegativity: 2.2, 1.5
1. Ionization potential: 9.1 eV
2. Ionization potential: -- eV
3. Ionization potential: -- eV
Oxidation states: 6, 4, 3, 2, 1, 0, -1
Electrical conductivity: 0.197 10^6
Thermal data
Melting point: 2410 °C
Boiling point: 4130 °C
Specific heat: 0.130 J/gK
Heat of fusion: 26.10 kJ/mol
Heat of vaporization: 604.0 kJ/mol
Thermal conductivity: 1.47 W/cmK
Steric data
Atomic radius: 1.87 Å
Ionic radius: 0.63 Å (+4)
Covalent radius: 1.27 Å
Atomic volume: 8.54 cm³/mol
Density (293 K): 22.42 g/cm³
Crystal structure: cubic face centered
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