Praseodymium vs Flerovium
| Property | Pr Praseodymium | Fl Flerovium |
|---|---|---|
| Atomic number | 59 | 114 |
| Symbol | Pr | Fl |
| Name | Praseodymium | Flerovium |
| Category | lanthanide | post-transition-metal |
| Standard Atomic Weight | 140.90766 u | 289 u |
| Period | 6 | 7 |
| Group | N/A | 14 |
| Block | s | p |
| Phase at STP | solid | gas |
| Electron configuration | [Xe]6s24f3 | [Rn] 7s27p2 5f14 6d10(predicted) |
| Oxidation states | [0, 1, 2, 3, 4, 5] | [0, 1, 2, 4, 6] |
| Electronegativity (Pauling) | 1.13 | N/A |
| Electron affinity | 0.962 eV | -0.5 eV |
| Density | 6770 kg/m³ | 9928 kg/m³ |
| Melting point | 930.85 °C | -273.15 °C |
| Boiling point | 3519.85 °C | -63.15 °C |
| Discovery year | 1885 | 1998 |