← Back to the periodic table
107
Bh
[270]
Bohrium
Transition metals · Group 7 · Period 7
Atomic properties
| Atomic number | 107 |
|---|---|
| Symbol | Bh |
| Standard atomic weight | [270] |
| Classification | Transition metals |
| Group | 7 |
| Period | 7 |
| Block | d-block |
| Electron configuration | [Rn] 5f14 6d5 7s2 |
| Electronegativity (Pauling) | — |
| Common oxidation states | +7 |
Physical properties
| Phase at 20 °C | Solid |
|---|---|
| Density | 37.1 g/cm³ |
| Melting point | — |
| Boiling point | — |
| Discovered | 1981 |
| CAS number | — |