Beryllium vs Phosphorus
| Property | Be Beryllium | P Phosphorus |
|---|---|---|
| Atomic number | 4 | 15 |
| Symbol | Be | P |
| Name | Beryllium | Phosphorus |
| Category | alkaline-earth-metal | nonmetal |
| Standard Atomic Weight | 9.012183 u | 30.973762 u |
| Period | 2 | 3 |
| Group | 2 | 15 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [He]2s2 | [Ne]3s23p3 |
| Oxidation states | [0, 1, 2] | [-3, -2, -1, 0, 1, 2, 3, 4, 5] |
| Electronegativity (Pauling) | 1.57 | 2.19 |
| Electron affinity | -0.52 eV | 0.7466 eV |
| Density | 1850 kg/m³ | 1820 kg/m³ |
| Melting point | 1286.85 °C | 44.15 °C |
| Boiling point | 2470.85 °C | 280.5 °C |
| Discovery year | 1797 | 1669 |