Nitrogen vs Phosphorus
| Property | N Nitrogen | P Phosphorus |
|---|---|---|
| Atomic number | 7 | 15 |
| Symbol | N | P |
| Name | Nitrogen | Phosphorus |
| Category | nonmetal | nonmetal |
| Standard Atomic Weight | 14.006855 u | 30.973762 u |
| Period | 2 | 3 |
| Group | 15 | 15 |
| Block | s | p |
| Phase at STP | gas | solid |
| Electron configuration | 2s2.2p3 | [Ne]3s23p3 |
| Oxidation states | [-3, -2, -1, 0, 1, 2, 3, 4, 5] | [-3, -2, -1, 0, 1, 2, 3, 4, 5] |
| Electronegativity (Pauling) | 3.04 | 2.19 |
| Electron affinity | -0.07 eV | 0.7466 eV |
| Density | 1.2506 kg/m³ | 1820 kg/m³ |
| Melting point | -210 °C | 44.15 °C |
| Boiling point | -195.79 °C | 280.5 °C |
| Discovery year | 1772 | 1669 |