Fluorine vs Praseodymium
| Property | F Fluorine | Pr Praseodymium |
|---|---|---|
| Atomic number | 9 | 59 |
| Symbol | F | Pr |
| Name | Fluorine | Praseodymium |
| Category | halogen | lanthanide |
| Standard Atomic Weight | 18.998403 u | 140.90766 u |
| Period | 2 | 6 |
| Group | 17 | N/A |
| Block | p | s |
| Phase at STP | gas | solid |
| Electron configuration | [He]2s22p5 | [Xe]6s24f3 |
| Oxidation states | -1 | [0, 1, 2, 3, 4, 5] |
| Electronegativity (Pauling) | 3.98 | 1.13 |
| Electron affinity | 3.4011 eV | 0.962 eV |
| Density | 1.696 kg/m³ | 6770 kg/m³ |
| Melting point | -219.62 °C | 930.85 °C |
| Boiling point | -188.12 °C | 3519.85 °C |
| Discovery year | 1886 | 1885 |