Atomic Number: 11

Name: Sodium

Original name: Natrium

Atomic symbol: Na

Atomic Weight: 22.9898

Electron affinity: -53 kJ/mol

Electron configuration: 1s²2s²2p⁶3s¹

Ionization energies: 496 kJ/mol; 4,562 kJ/mol; 6,912 kJ/mol; 9,543 kJ/mol

Pauling electronegativity: 0.9

Melting Point: 98^oC

Boiling Point: 883^oC

Density: 0.97 g/cm³

Standard potential (volts), M⁺ + e^- ---> M: -2.71

Covalent radius: 1.57 angstroms

Ionic radius: 1.16 angstroms (+1)

Common oxidation states in compounds: +1