Francium vs Livermorium
| Property | Fr Francium | Lv Livermorium |
|---|---|---|
| Atomic number | 87 | 116 |
| Symbol | Fr | Lv |
| Name | Francium | Livermorium |
| Category | alkali-metal | post-transition-metal |
| Standard Atomic Weight | 223 u | 293 u |
| Period | 7 | 7 |
| Group | 1 | 16 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [Rn]7s1 | [Rn] 7s2 7p4 5f14 6d10(predicted) |
| Oxidation states | [1] | [-2, 2, 4] |
| Electronegativity (Pauling) | 0.7 | N/A |
| Electron affinity | 0.491 eV | 0.7 eV |
| Density | 1870 kg/m³ | 1.290000e+4 kg/m³ |
| Melting point | 26.85 °C | 506.85 °C |
| Boiling point | -273.15 °C | 861.85 °C |
| Discovery year | 1939 | 2000 |