Atomic Number: 15

Name: Phosphorus

Atomic symbol: P

Atomic Weight: 30.9738

Electron affinity: -72 kJ/mol

Electron configuration: 1s²2s²2p⁶3s²3p³

Ionization energies: 1,012 kJ/mol

Pauling electronegativity: 2.1

Melting Point: 44^oC

Boiling Point: 280^oC

Density: 1.82 g/cm³

Covalent radius: 1.10 angstroms

Ionic radius: 1.85 angstroms (-3); 0.44 angstroms (+3); 0.35 angstroms (+5)

Van Der Wall's radius: 1.9 angstroms

Common oxidation states in compounds: -3, +3, +5