Phosphorus vs Antimony
| Property | P Phosphorus | Sb Antimony |
|---|---|---|
| Atomic number | 15 | 51 |
| Symbol | P | Sb |
| Name | Phosphorus | Antimony |
| Category | nonmetal | metalloid |
| Standard Atomic Weight | 30.973762 u | 121.76 u |
| Period | 3 | 5 |
| Group | 15 | 15 |
| Block | p | p |
| Phase at STP | solid | solid |
| Electron configuration | [Ne]3s23p3 | [Kr]5s24d105p3 |
| Oxidation states | [-3, -2, -1, 0, 1, 2, 3, 4, 5] | [-3, -2, -1, 0, 1, 2, 3, 4, 5] |
| Electronegativity (Pauling) | 2.19 | 2.05 |
| Electron affinity | 0.7466 eV | 1.07 eV |
| Density | 1820 kg/m³ | 6685 kg/m³ |
| Melting point | 44.15 °C | 630.63 °C |
| Boiling point | 280.5 °C | 1586.85 °C |
| Discovery year | 1669 | 1707 |