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HOME > Protocols > Reference Material > Periodic Table > Phosphorus
Phosphorus

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: 44oC

Boiling Point: 280oC

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

Previous: Atomic Number 14 - Silicon


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