Nitrogen vs Astatine
| Property | N Nitrogen | At Astatine |
|---|---|---|
| Atomic number | 7 | 85 |
| Symbol | N | At |
| Name | Nitrogen | Astatine |
| Category | nonmetal | halogen |
| Standard Atomic Weight | 14.006855 u | 210 u |
| Period | 2 | 6 |
| Group | 15 | 17 |
| Block | s | p |
| Phase at STP | gas | solid |
| Electron configuration | 2s2.2p3 | [Xe]6s24f145d106p5 |
| Oxidation states | [-3, -2, -1, 0, 1, 2, 3, 4, 5] | [-1, 1, 3, 5, 7] |
| Electronegativity (Pauling) | 3.04 | 2.2 |
| Electron affinity | -0.07 eV | 2.391 eV |
| Density | 1.2506 kg/m³ | 7000 kg/m³ |
| Melting point | -210 °C | 301.85 °C |
| Boiling point | -195.79 °C | -273.15 °C |
| Discovery year | 1772 | 1940 |