Quick Facts
| Property | Value |
|---|---|
| Symbol | Mt |
| Atomic Number | 109 |
| Atomic Mass | [278] u |
| Category | Transition Metal |
| Period | 7 |
| Group | 9 |
| Block | d |
| Electron Configuration | [Rn] 5f¹⁴ 6d⁷ 7s² |
History and Discovery
Discovered by: Peter Armbruster and Gottfried Münzenberg Year of Discovery: 1982 Location: GSI, Darmstadt, Germany
Etymology
Named after Lise Meitner, Austrian-Swedish physicist who co-discovered nuclear fission.
Interesting Facts
- Named after Lise Meitner
- Lise Meitner was denied the Nobel Prize for fission discovery
- Predicted to resemble iridium
- Most stable isotope has about 8-second half-life
- Only about a dozen atoms have been made