Boron vs Flerovium
| Property | B Boron | Fl Flerovium |
|---|---|---|
| Atomic number | 5 | 114 |
| Symbol | B | Fl |
| Name | Boron | Flerovium |
| Category | metalloid | post-transition-metal |
| Standard Atomic Weight | 10.8135 u | 289 u |
| Period | 2 | 7 |
| Group | 13 | 14 |
| Block | p | p |
| Phase at STP | solid | gas |
| Electron configuration | [He]2s22p1 | [Rn] 7s27p2 5f14 6d10(predicted) |
| Oxidation states | [-5, -1, 0, 1, 2, 3] | [0, 1, 2, 4, 6] |
| Electronegativity (Pauling) | 2.04 | N/A |
| Electron affinity | 0.27972 eV | -0.5 eV |
| Density | 2370 kg/m³ | 9928 kg/m³ |
| Melting point | 2074.85 °C | -273.15 °C |
| Boiling point | 3999.85 °C | -63.15 °C |
| Discovery year | 1808 | 1998 |