Electronic data
Shells: 2, 8, 18, 2
Orbitals: [Ar] 3d10 4s2
Electronegativity: 1.6, 1.7
1. Ionization potential: 9.3941 eV
2. Ionization potential: 17.964 eV
3. Ionization potential: 39.722 eV
Oxidation states: 2
Electrical conductivity: 0.166 10^6
Thermal data
Melting point: 419.58 °C
Boiling point: 907 °C
Specific heat: 0.39 J/gK
Heat of fusion: 7.322 kJ/mol
Heat of vaporization: 115.30 kJ/mol
Thermal conductivity: 1.16 W/cmK
Steric data
Atomic radius: 1.53 Å
Ionic radius: 0.74 Å (+2)
Covalent radius: 1.25 Å
Atomic volume: 9.2 cm³/mol
Density (293 K): 7.14 g/cm³
Crystal structure: hexagonal
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