Atomic Number: 13

Name: Aluminum

Atomic symbol: Al

Atomic Weight: 26.9815

Electron affinity: -44 kJ/mol

Electron configuration: 1s²2s²2p⁶3s²3p¹

Ionization energies: 578 kJ/mol; 1,817 kJ/mol; 2,745 kJ/mol; 11,577 kJ/mol

Pauling electronegativity: 1.5

Melting Point: 660^oC

Boiling Point: 2467^oC

Density: 2.70 g/cm³

Standard potential (volts), M⁺ + e^- ---> M: -1.66

Covalent radius: 1.25 angstroms

Ionic radius: 0.51 angstroms (+3)

Common oxidation states in compounds: +3