| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 223At | 85 | 138 | -3/2 | |
| 224Rn | 86 | 138 | 0 | |
| 225Fr | 87 | 138 | -3/2 | |
| 226Ra | 88 | 138 | 0 | |
| 227Ac | 89 | 138 | -3/2 | |
| 228Th | 90 | 138 | 0 | |
| 229Pa | 91 | 138 | 5/2 | |
| 229mPa | 91 | 138 | -3/2 | |
| 230U | 92 | 138 | 0 | |
| 231Np | 93 | 138 | 5/2 | |
| 232Pu | 94 | 138 | 0 | |
| 233Am | 95 | 138 | 1/2 | |
| 234Cm | 96 | 138 | 0 | |
| 237Bk | 97 | 138 | -5/2 |