Fluorine vs Cerium
| Property | F Fluorine | Ce Cerium |
|---|---|---|
| Atomic number | 9 | 58 |
| Symbol | F | Ce |
| Name | Fluorine | Cerium |
| Category | halogen | lanthanide |
| Standard Atomic Weight | 18.998403 u | 140.116 u |
| Period | 2 | 6 |
| Group | 17 | N/A |
| Block | p | s |
| Phase at STP | gas | solid |
| Electron configuration | [He]2s22p5 | [Xe]6s24f15d1 |
| Oxidation states | -1 | [1, 2, 3, 4] |
| Electronegativity (Pauling) | 3.98 | 1.12 |
| Electron affinity | 3.4011 eV | 0.955 eV |
| Density | 1.696 kg/m³ | 6770 kg/m³ |
| Melting point | -219.62 °C | 797.85 °C |
| Boiling point | -188.12 °C | 3423.85 °C |
| Discovery year | 1886 | 1801 |