Atomic number 109
Atomic mass 265.9 g.mol -1
Melting point unknown
Boiling point unknown
Discovered by Heavy Ion Research Laboratory in 1982
Meitnerium is an artificially produced radioactive element. None of meitnerium's chemistry has been researched, but it should resemble other elements of group 9, like iridium.
Meitnerium does not have any known application and little is known about it.
Meitnerium is not found free in the environment, since it is a synthetic element.
As it is so unstable, any amount formed would decompose to other elements so quickly that there’s no reason to study its effects on human health.
Due to its extremely short half-life (about 3.8 milliseconds), there’s no reason for considering the effects of meitnerium in the environment