Atomic Number: 31

Name: Gallium

Atomic symbol: Ga

Atomic Weight: 69.72

Electron affinity: -30 kJ/mol

Electron configuration: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p¹

Ionization energies: 579 kJ/mol; 1,979 kJ/mol; 2,963 kJ/mol; 6,200 kJ/mol

Pauling electronegativity: 1.6

Melting Point: 30^oC

Boiling Point: 2403^oC

Density: 5.90 g/cm³

Standard potential (volts), M⁺ + e^- ---> M: -0.56

Covalent radius: 1.25 angstroms

Ionic radius: 0.76 angstroms (+1); 0.62 angstroms (+3)

Common oxidation states in compounds: +3