Notes
| Isotopes of Roentgenium |
| Notes
|
| Three isotopes of roentgenium are known. The longest-lived of these is 280Rg which decays through alpha decay and has a half-llife of 3.6 s. the shortest-lived isotope is 272Rg which decays through alpha decay and has a half life of 1.5 ms. The other known isotope; 279Rg decays through alpha decay and has a half-llife of 170 ms. |