Atomic number 15
Name Phosphorus
Atomic mass 30.973762(2)
Electronic configuration [Ne] 3s2 3p3
Electronegativity 2.19
Atomic radius 106 pm
Ion radius 44 (+3) pm
Van der Waals radius 180 pm
Ionization energy 1012 kJ/mol
Electron affinity -72 kJ/mol
Oxidation states -3, -2, -1, 1, 2, 3, 4, 5
Standard physical state solid
Bonding type covalent network
Melting point 317 °C
Boiling point 554 °C
Density 1.823 g/cm³
Type nonmetal
Year discovered 1669