Fluorine vs Cobalt
| Property | F Fluorine | Co Cobalt |
|---|---|---|
| Atomic number | 9 | 27 |
| Symbol | F | Co |
| Name | Fluorine | Cobalt |
| Category | halogen | transition-metal |
| Standard Atomic Weight | 18.998403 u | 58.933194 u |
| Period | 2 | 4 |
| Group | 17 | 9 |
| Block | p | s |
| Phase at STP | gas | solid |
| Electron configuration | [He]2s22p5 | [Ar]4s23d7 |
| Oxidation states | -1 | [-3, -1, 0, 1, 2, 3, 4, 5] |
| Electronegativity (Pauling) | 3.98 | 1.88 |
| Electron affinity | 3.4011 eV | 0.661 eV |
| Density | 1.696 kg/m³ | 8860 kg/m³ |
| Melting point | -219.62 °C | 1494.85 °C |
| Boiling point | -188.12 °C | 2926.85 °C |
| Discovery year | 1886 | 1735 |