| Name | Exergy / MeV/atom | Exergy / TJ/kg |
|---|---|---|
| Rn220 | 25.1 | 11 |
| Rn221 | 23.7 | 10.3 |
| Rn222 | 30.5 | 13.2 |
| Rn223 | 33.1 | 14.3 |
| Rn225 | 38.2 | 16.4 |
| Rn226 | 40.4 | 17.3 |
| Rn227 | 43.2 | 18.4 |
| Rn228 | 1.9 | 0.8 |
| Rn229 | 48.6 | 20.5 |
| Fr197 | 22.7 | 11.1 |
| Fr198 | 7.9 | 3.8 |
| Fr200 | 33.8 | 16.3 |
| Fr201 | 20.5 | 9.8 |
| Fr202 | 28.9 | 13.8 |
| Fr204 | 24.0 | 11.4 |
| Fr206 | 20.2 | 9.5 |
| Fr207 | 17.7 | 8.3 |
| Fr208 | 17.1 | 7.9 |
| Fr209 | 14.8 | 6.8 |
| Fr210 | 15.1 | 6.9 |
| Fr212 | 15.7 | 7.2 |
| Fr213 | 14.4 | 6.5 |
| Fr214 | 17.0 | 7.7 |
| Fr215 | 17.5 | 7.9 |
| Fr216 | 18.9 | 8.4 |
| Fr217 | 20.9 | 9.3 |
| Fr218 | 23.6 | 10.4 |
| Fr219 | 23.8 | 10.5 |
| Fr220 | 26.0 | 11.4 |
| Fr221 | 27.4 | 12 |
| Fr222 | 30.5 | 13.2 |
| Fr223 | 31.1 | 13.5 |
| Fr225 | 35.5 | 15.2 |
| Fr226 | 39.2 | 16.7 |
| Fr227 | 40.0 | 17 |
| Fr229 | 44.9 | 18.9 |
| Fr230 | 48.7 | 20.4 |
| Fr231 | 50.0 | 20.9 |
| Fr232 | 53.3 | 22.2 |
| Fr233 | 55.8 | 23.1 |
| Ra201 | 15.4 | 7.4 |
| Ra202 | 7.9 | 3.8 |
| Ra203 | 27.2 | 12.9 |
| Ra204 | 31.5 | 14.9 |
| Ra206 | 26.4 | 12.3 |
| Ra207 | 23.8 | 11.1 |
| Ra208 | 22.5 | 10.4 |
| Ra209 | 20.0 | 9.2 |
| Ra210 | 19.1 | 8.8 |
| Ra212 | 18.0 | 8.2 |