Relative atomic mass: [276]

English: Meitnerium
French: Meitnerium
Croatian: Meitnerij
German: Meitnerium
Italian: Meitnerio
Spanish: Meitnerio

Atomic number: 109
Group numbers: 9
Period: 7
Standard state (20 oC): solid

Discovery: 1982 Peter Armbruster, Gottfried Munzenber & GSI Darmstadt (DE)
Meitnerium was discovered by Peter Armbruster, Gottfried Munzenber (DE) and their co-workers at the Heavy Ion Research Laboratory (Gesellschaft fur Schwerionenforschung, GSI) in Darmstadt, Germany in 1982. Named in honour of Lise Meitner, the Austrian physicist. It is a synthetic radioactive metal. Meitnerium was produced by bombarding bismuth-209 with iron-58.
Electronic configuration: [Rn] 5f14 6d7 7s2
Formal oxidation number: 
Atomic radius: - pm

Electronegativities: -
Thermal conductivity: - W/(m K)
Electrical resistivity (20 oC): - microOhm cm

Melting point: - oC
Boiling point: - oC

Heat of fusion: - kJ/mol
Heat of vaporization: - kJ/mol
Heat of atomization: - kJ/mol

108Hs <= 109Mt => 110Ds

ASCII Periodic Table of the Elements
6 Jan. 2020
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