| name | Roentgenium |
| latin | Roentgenium |
| french | Roentgenium |
| german | Roentgenium |
| symbol | Rg |
| proton number | 111 |
| atomic weight | [272] |
| Pauling electronegativity | - |
| electronic configuration | [Rn] 5f146d107s1 1s22s22p63s23p63d104s24p64d105s25p64f145d106s26p65f146d107s1 |
| melting point | - |
| boiling point | - |
| group | 11 |
| period | 7 |
| state (by 20°C) | solid |
| oxidation states | - |
| Year of discovery | Discoverers |
| 1994 | S. Hofmann V. Ninov F. P. Hessberger Peter Armbruster H. Folger Gottfried Münzenberg and others from GSI (Darmstadt, Germany) |