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Roentgenium  SEE PERIODIC TABLE
see article  SEE FULL ARTICLE

Atomic Number111
Atomic SymbolRg
Atomic Weight272 amu
GroupTransition, 11
Ground State Electron Configuration5f14 6s2 6p6 6d7 7s2
Selected Radioisotopes272Rg
Discovered byHofmann, Ninov, Hessberger, Armbruster, Folger, Münzenberger
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