Electronic data
Shells: 2, 7
Orbitals: [He] 2s2 2p5
Electronegativity: 4.0, 4.1
1. Ionization potential: 17.4228 eV
2. Ionization potential: 34.97 eV
3. Ionization potential: 62.707 eV
Oxidation states: -1
Electrical conductivity: --
Thermal data
Melting point: -219.62 °C
Boiling point: -188.14 °C
Specific heat: 0.82 J/gK
Heat of fusion: 0.2552 kJ/mol
Heat of vaporization: 3.2698 kJ/mol
Thermal conductivity: 0.000279 W/cmK
Steric data
Atomic radius: 0.57 Å
Ionic radius: 1.33 Å (-1)
Covalent radius: 0.72 Å
Atomic volume: 12.6 cm³/mol
Density (293 K): 0.001696 g/cm³
Crystal structure: cubic
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