Mt
Meitnerium
Transactinide
Meitnerium is a synthetic element named after Lise Meitner. It is extremely unstable with only a few atoms ever produced.
Key Facts
Atomic Number
109
Atomic Weight
278
State
Solid
Half-life
8 seconds (Mt-278)
Discovered
1982
Peter Armbruster, Gottfried Münzenberg, and colleagues
Overview
Description
Meitnerium is a synthetic element named after Lise Meitner. It is extremely unstable with only a few atoms ever produced.
Discovery
Meitnerium was discovered in 1982 by Peter Armbruster, Gottfried Münzenberg, and colleagues.