Tennessine
Teneso (Ts, Z=117)
- Date
- 2010 · confidence high
- Place
- Dubna, Russia (JINR)
- Credited to
- Yuri Oganessian and the JINR-Oak Ridge-Vanderbilt-Livermore collaboration
- People
- 👤 Yuri Tsolakovich Oganessian1933–
- Field
- Matter & energy
⚠️ Disputed: the sources disagree.
What was discovered
Six atoms obtained by fusing calcium-48 with berkelium-249 produced at Oak Ridge; named after Tennessee.
Recognised by the IUPAC in 2015.
What it led to
- Last gap in the 7th row to be filled
- International collaboration on radioactive targets
- Evidence of increasing half-lives towards the island of stability
Built on
- Berkelium1949
- Ca-48 method
Made possible
- Production of Bk-249 in the HFIR reactor