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{{Element | name=Roentgenium | symbol=Rg | anumber=111 | amass=272 amu | state=Presumed to be a Solid | class=Transactinides | cstructure=Unknown | color=Unknown | date=1994 | discname=S.Hofmann, V.Ninov, F.P.Heßberger, P.Armbruster, H.Folger, G.Münzenberg and H.J.Schött | origname=Named after the discoverer of X-Rays, [[Wilhelm Conrad Roentgen]]. | uses=Research interest only. | obtained=Synthetically produced element normally produced by fusing two lighter elements in a heavy ion accelerator. }}

{{Element | name=Roentgenium | symbol=Rg | anumber=111 | amass=272 amu | state=Presumed to be a Solid | class=Transactinides | cstructure=Unknown | color=Unknown | date=1994 | discname=S.Hofmann, V.Ninov, F.P.Heßberger, P.Armbruster, H.Folger, G.Münzenberg and H.J.Schött | origname=Named after the discoverer of X-Rays, [[Wilhelm Conrad Roentgen]]. | uses=Research interest only. | obtained=Synthetically produced element normally produced by fusing two lighter elements in a heavy ion accelerator. }}

'''Roentgenium''' is a [[synthetic]] chemical [[element]] with the symbol Rg and atomic number 111. It is not found in nature because it is extremely [[radioactive]].<ref>https://www.rsc.org/periodic-table/element/111/roentgenium</ref>

'''Roentgenium''' is a [[synthetic]] chemical [[element]] with the symbol Rg and atomic number 111. It is not found in nature because it is extremely [[radioactive]].<ref>https://www.rsc.org/periodic-table/element/111/roentgenium</ref>