| Name | Exergy / MeV/atom | Exergy / TJ/kg |
|---|---|---|
| Ra213 | 17.3 | 7.8 |
| Ra214 | 17.1 | 7.7 |
| Ra215 | 18.5 | 8.3 |
| Ra216 | 21.1 | 9.4 |
| Ra217 | 22.4 | 10.0 |
| Ra218 | 23.2 | 10.3 |
| Ra219 | 24.6 | 10.8 |
| Ra220 | 24.7 | 10.9 |
| Ra221 | 27.1 | 11.8 |
| Ra222 | 28.4 | 12.3 |
| Ra223 | 30.0 | 13 |
| Ra224 | 30.9 | 13.3 |
| Ra225 | 33.7 | 14.4 |
| Ra226 | 35.3 | 15.1 |
| Ra227 | 37.5 | 15.9 |
| Ra228 | 38.6 | 16.3 |
| Ra229 | 41.8 | 17.6 |
| Ra230 | 43.8 | 18.4 |
| Ra231 | 46.1 | 19.3 |
| Ra232 | 47.7 | 19.8 |
| Ra233 | 51.2 | 21.2 |
| Ra234 | 53.7 | 22.2 |
| Ac205 | 28.5 | 13.4 |
| Ac206 | 36.8 | 17.2 |
| Ac207 | 7.8 | 3.7 |
| Ac208 | 31.7 | 14.7 |
| Ac209 | 7.7 | 3.6 |
| Ac211 | 25.3 | 11.6 |
| Ac212 | 24.6 | 11.2 |
| Ac215 | 7.8 | 3.5 |
| Ac216 | 25.0 | 11.2 |
| Ac217 | 24.2 | 10.8 |
| Ac218 | 26.3 | 11.7 |
| Ac219 | 26.3 | 11.6 |
| Ac220 | 27.2 | 11.9 |
| Ac221 | 28.6 | 12.5 |
| Ac222 | 30.7 | 13.3 |
| Ac223 | 30.6 | 13.2 |
| Ac224 | 31.4 | 13.5 |
| Ac225 | 33.3 | 14.3 |
| Ac226 | 36.0 | 15.4 |
| Ac227 | 36.2 | 15.4 |
| Ac228 | 38.5 | 16.3 |
| Ac229 | 40.0 | 16.8 |
| Ac230 | 43.1 | 18.1 |
| Ac231 | 43.7 | 18.2 |
| Ac232 | 46.4 | 19.3 |
| Ac233 | 48.2 | 19.9 |
| Ac234 | 51.7 | 21.3 |
| Th208 | 39.7 | 18.4 |