Bohrium (Bh)
Bohrium (Bh) is element 107, a transition metal. Atomic mass 270, configuration [Rn] 5f¹⁴ 6d⁵ 7s². Properties, isotopes, oxidation states, uses and history, with an interactive 3D atom model.
Key facts
| Atomic number | 107 |
|---|---|
| Symbol | Bh |
| Standard atomic weight | 270 |
| Category | Transition Metal |
| Group | 7 |
| Period | 7 |
| Electron configuration | [Rn] 5f¹⁴ 6d⁵ 7s² |
| Valence electrons | 2 (Variable) |
| Common ions | No common ions |
| First ionization energy | 740 kJ/mol |
Common uses
- Research only
Where it matters
- Heavy Ion Research
Hazards
- Radioactive
History
| Discovered | 1981 |
|---|---|
| Discovered by | GSI Helmholtz Centre (Germany) |
| Name | Niels Bohr |