Category:Roentgenium
From GHN
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[[File:Roentgenium 2005 Electron Shell 111 Roentgenium Attribution.png|200px|thumb|200px|thumb|right| A 2005 Electron shell diagram for Roentgenium - Photo by Greg Robson. ]] | [[File:Roentgenium 2005 Electron Shell 111 Roentgenium Attribution.png|200px|thumb|200px|thumb|right| A 2005 Electron shell diagram for Roentgenium - Photo by Greg Robson. ]] | ||
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| + | A synthetic radioactive chemical element with the symbol Rg and the atomic number 111. First observed in 1994. | ||
[[Category:Elements|{{PAGENAME}}]] | [[Category:Elements|{{PAGENAME}}]] | ||
Revision as of 15:59, 13 February 2013
A 2005 Electron shell diagram for Roentgenium - Photo by Greg Robson.
A 2005 Electron shell diagram for Roentgenium - Photo by Greg Robson.
A synthetic radioactive chemical element with the symbol Rg and the atomic number 111. First observed in 1994.
