Electronic data
Shells: 2, 8, 18, 32, 25, 8, 2
Orbitals: [Rn] 5f7 7s2
Electronegativity: --, 1.2
1. Ionization potential: 5.993 eV
2. Ionization potential: -- eV
3. Ionization potential: -- eV
Oxidation states: 6, 5, 4, 3
Electrical conductivity: 0.022 10^6
Thermal data
Melting point: 994 °C
Boiling point: 2607 °C
Specific heat: 0.11 J/gK
Heat of fusion: 14.40 kJ/mol
Heat of vaporization: -- kJ/mol
Thermal conductivity: 0.1 W/cmK
Steric data
Atomic radius: -- Å
Ionic radius: -- Å
Covalent radius: -- Å
Atomic volume: 17.86 cm³/mol
Density (293 K): 13.6 g/cm³
Crystal structure: hexagonal
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