Fluorine vs Iron
| Property | F Fluorine | Fe Iron |
|---|---|---|
| Atomic number | 9 | 26 |
| Symbol | F | Fe |
| Name | Fluorine | Iron |
| Category | halogen | transition-metal |
| Standard Atomic Weight | 18.998403 u | 55.845 u |
| Period | 2 | 4 |
| Group | 17 | 8 |
| Block | p | s |
| Phase at STP | gas | solid |
| Electron configuration | [He]2s22p5 | [Ar]4s23d6 |
| Oxidation states | -1 | [-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7] |
| Electronegativity (Pauling) | 3.98 | 1.83 |
| Electron affinity | 3.4011 eV | 0.151 eV |
| Density | 1.696 kg/m³ | 7874 kg/m³ |
| Melting point | -219.62 °C | 1537.85 °C |
| Boiling point | -188.12 °C | 2860.85 °C |
| Discovery year | 1886 | N/A |