111
Rg
282Roentgenium
Appearance
Categoryunknown, probably transition metal
Discovered byGesellschaft für Schwerionenforschung
Named byN/A
What element is Rg on the periodic table?Rg is the element Roentgenium on the periodic table.
What is the symbol for Roentgenium on the periodic table?The symbol for Roentgenium on the periodic table is Rg.
What does Roentgenium look like?To the human eye, Roentgenium is .
About RoentgeniumRoentgenium is a synthetic chemical element; it has symbol Rg and atomic number 111. It is extremely radioactive and can only be created in a laboratory. The most stable known isotope, roentgenium-282, has a half-life of 130 seconds, although the unconfirmed roentgenium-286 may have a longer half-life of about 10.7 minutes. Roentgenium was first created in December 1994 by the GSI Helmholtz Centre for Heavy Ion Research near Darmstadt, Germany. It is named after the physicist Wilhelm Röntgen, who discovered X-rays. Only a few roentgenium atoms have ever been synthesized, and they have no practical application.Source: Wikipedia