Hassium
Hasio (Hs, Z=108)
- Date
- 1984 · confidence high
- Place
- GSI, Darmstadt, Germany
- Credited to
- Peter Armbruster and Gottfried Münzenberg (GSI)
- People
- 👤 Gottfried Münzenberg1940–2024👤 Peter Armbruster1931–2024
- Field
- Matter & energy
⚠️ Disputed: the sources disagree.
What was discovered
Three atoms of Hs-265 obtained by fusing iron-58 with lead-208; named after the state of Hesse.
Dubna claimed it simultaneously; credit went to the GSI.
What it led to
- Hassium tetroxide: first compound of such a heavy element
- Confirmation of extra stability at N=162
- Gas-phase chemistry with individual atoms
Built on
- UNILAC and SHIP
- Cold fusion
Made possible
- Chromatography of hassium tetroxide (HsO4)