| Element | Phosphorus | Symbol | P |
| Atomic Number | 15 | Molar Mass | 30.97 gmol-1 |
| Electron Configuration | [Ne]3s23p3 | Normal State | solid nonmetal |
| Density @STP | 1.82 g cm-3 | Melting Point | 44oC |
| Boiling Point | 281oC | Stable Isotopes | 31P |
| Atomic Radius | 110 pm | Ionic Radius | 212 (3-) pm |
| Electronegativity (Pauling) | 2.19 | Ionization Energy (1st) | 1012 kJ mol-1 |
| Ionization Energy (2nd) | 1903 kJ mol-1 | Ionization Energy (3rd) | 2912 kJ mol-1 |
| Molar Heat Capacity | 23.8 J K-1mol-1 | Standard Molar Entropy | 41.1 J K-1mol-1 |
| Enthalpy of Fusion | 2.51 kJ mol-1 | Enthalpy of Vapourization | 51.9 kJ mol-1 |