Nitrogen vs Francium
| Property | N Nitrogen | Fr Francium |
|---|---|---|
| Atomic number | 7 | 87 |
| Symbol | N | Fr |
| Name | Nitrogen | Francium |
| Category | nonmetal | alkali-metal |
| Standard Atomic Weight | 14.006855 u | 223 u |
| Period | 2 | 7 |
| Group | 15 | 1 |
| Block | s | s |
| Phase at STP | gas | solid |
| Electron configuration | 2s2.2p3 | [Rn]7s1 |
| Oxidation states | [-3, -2, -1, 0, 1, 2, 3, 4, 5] | [1] |
| Electronegativity (Pauling) | 3.04 | 0.7 |
| Electron affinity | -0.07 eV | 0.491 eV |
| Density | 1.2506 kg/m³ | 1870 kg/m³ |
| Melting point | -210 °C | 26.85 °C |
| Boiling point | -195.79 °C | -273.15 °C |
| Discovery year | 1772 | 1939 |