Og
Oganesson
Noble Gas (predicted)
Oganesson is the heaviest known element, named after Yuri Oganessian. It is predicted to be a noble gas but may behave differently due to relativistic effects.
Key Facts
Atomic Number
118
Atomic Weight
294
State
Gas (predicted)
Half-life
0.7 milliseconds (Og-294)
Discovered
2002
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
Overview
Description
Oganesson is the heaviest known element, named after Yuri Oganessian. It is predicted to be a noble gas but may behave differently due to relativistic effects.
Discovery
Oganesson was discovered in 2002 by Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory.