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Roentgenium
SEE PERIODIC TABLE
SEE FULL ARTICLE
Atomic Number
111
Atomic Symbol
Rg
Atomic Weight
272 amu
Group
Transition, 11
Ground State Electron Configuration
5f
14
6s
2
6p
6
6d
7
7s
2
Selected Radioisotopes
272
Rg
Discovered by
Hofmann, Ninov, Hessberger, Armbruster, Folger, Münzenberger
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