Phosphorus

P Phosphorus Non-Metal

 

Atomic number:  15 Atomic weight:  30.973762
Shells:  2,8,5 Orbitals:  [Ne] 3s2 3p3
Melting point:  44.1°C Boiling point:  277°C
Covalent radius:  1.06 Å Atomic volume:  17.0 cm³/mol
Atomic radius:  1.23 Å Ionic radius:  .17 (+5) Å
Electronegativity:  2.19 Oxidation states:  ±3,(5),7
1st ionization pot.:  10.4867 V 2nd ionization pot.:  19.725 V
3rd ionization pot.:  30.18 V Specific heat:  0.77 J/gK
Heat of fusion:  0.657 kJ/mol Heat of vapor.:  12.129 kJ/mol
Thermal conduct.:  0.00235 W/cmK Electrical conduct.:  1.0e-17 10^6/cm ohm
Density:  1.82 g/cm³ Valence:  3,5