'unnilhexium' definitions:
Definition of 'unnilhexium'
From: Elements
- Symbol:
- Atomic number: 106
- Atomic weight: (263)
- Half-life of 0.9 +/- 0.2 s. Discovered by the Joint Institute for Nuclear Research at Dubna (U.S.S.R.) in June of 1974. Its existence was confirmed by the Lawrence Berkeley Laboratory and Livermore National Laboratory in September of 1974.