Bh
Bohrium
Element 107 · 270.133 u
Transition Metal
d-block
Period 7
Group 7
Solid at RT
Radioactive
t½ 61 seconds
Synthetic
Wikipedia →
Bohrium is expected to behave chemically like rhenium.
Physical Properties
| Atomic Mass | 270.133 u |
| Density | 37.1 g/cm³ |
| Appearance | Metallic (predicted) |
| State at Room Temp | Solid |
Chemical Properties
| Oxidation States | +7 |
Atomic Properties
| Electron Configuration | [Rn] 5f14 6d5 7s2 |
Discovery
| Discovered By | Peter Armbruster, Gottfried Munzenberg and others |
| Discovery Year | 1981 |
| Location | Darmstadt, Germany |
| Named After | Named after Niels Bohr, pioneer of quantum mechanics |
About Bohrium
Bohrium was first synthesized at the GSI Helmholtz Centre by bombarding bismuth with chromium ions. Limited studies suggest rhenium-like behavior.
Uses & Applications
No practical applications. Scientific research only.
Fun Fact
Bohrium was created by fusing bismuth and chromium nuclei, producing just a few atoms at a time.
Isotopes
| Mass Number | Abundance | Half-Life | Stable |
| 267 | - | 17 seconds | No |
| 270 | - | 61 seconds | No |
Electron Configuration
[Rn] 5f14 6d5 7s2