Thulium vs Bohrium
| Property | Tm Thulium | Bh Bohrium |
|---|---|---|
| Atomic number | 69 | 107 |
| Symbol | Tm | Bh |
| Name | Thulium | Bohrium |
| Category | lanthanide | transition-metal |
| Standard Atomic Weight | 168.93422 u | 270 u |
| Period | 6 | 7 |
| Group | N/A | 7 |
| Block | s | s |
| Phase at STP | solid | N/A |
| Electron configuration | [Xe]6s24f13 | [Rn]7s25f146d5 |
| Oxidation states | [0, 1, 2, 3] | [3, 4, 5, 7] |
| Electronegativity (Pauling) | 1.25 | N/A |
| Electron affinity | 1.029 eV | 0.44 eV |
| Density | 9320 kg/m³ | 3.710000e+4 kg/m³ |
| Melting point | 1544.85 °C | -273.15 °C |
| Boiling point | 1949.85 °C | -273.15 °C |
| Discovery year | 1879 | 1976 |