Electronic data
Shells: 2, 8, 18, 32, 18, 3
Orbitals: [Xe] 4f14 5d10 6s2 6p1
Electronegativity: 1.8, 1.4
1. Ionization potential: 6.1083 eV
2. Ionization potential: 20.428 eV
3. Ionization potential: 29.829 eV
Oxidation states: 3, 1
Electrical conductivity: 0.0617 10^6
Thermal data
Melting point: 303.5 °C
Boiling point: 1457 °C ±10
Specific heat: 0.13 J/gK
Heat of fusion: 4.142 kJ/mol
Heat of vaporization: 164.10 kJ/mol
Thermal conductivity: 0.461 W/cmK
Steric data
Atomic radius: 2.08 Å
Ionic radius: 1.59 Å (+1)
Covalent radius: 1.48 Å
Atomic volume: 17.2 cm³/mol
Density (293 K): 11.85 g/cm³
Crystal structure: hexagonal
){kind=link}
){kind=link}
){kind=link}
){kind=link}
){kind=link}
){kind=link}
){kind=link}
){kind=link}
){kind=link}