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Roentgenium
Atomic Number: 111
Atomic Symbol: Rg
Atomic Weight: 272
Electron Configuration: 2-8-18-32-32-18-1
Atomic Symbol: Rg
Atomic Weight: 272
Electron Configuration: 2-8-18-32-32-18-1
History
Discovered by Gesellschaft Schwerionenforschung (GSI) in Darmstadt, in 1994. Reasearch group of S. Hofmann, V. Ninov, F.P. Hessberger, P. Armbruster, H. Folger, G. Munzenberg, H.J. Schott, and others.
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