Fluorine vs Sodium
| Property | F Fluorine | Na Sodium |
|---|---|---|
| Atomic number | 9 | 11 |
| Symbol | F | Na |
| Name | Fluorine | Sodium |
| Category | halogen | alkali-metal |
| Standard Atomic Weight | 18.998403 u | 22.989769 u |
| Period | 2 | 3 |
| Group | 17 | 1 |
| Block | p | s |
| Phase at STP | gas | solid |
| Electron configuration | [He]2s22p5 | [Ne]3s1 |
| Oxidation states | -1 | [-1, 0, 1] |
| Electronegativity (Pauling) | 3.98 | 0.93 |
| Electron affinity | 3.4011 eV | 0.5479 eV |
| Density | 1.696 kg/m³ | 970 kg/m³ |
| Melting point | -219.62 °C | 97.8 °C |
| Boiling point | -188.12 °C | 882.85 °C |
| Discovery year | 1886 | 1807 |