| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 238Th | 90 | 148 | 0 | |
| 239Pa | 91 | 148 | -3/2 | |
| 240U | 92 | 148 | 0 | |
| 241Np | 93 | 148 | 5/2 | |
| 242Pu | 94 | 148 | 0 | |
| 243Am | 95 | 148 | -5/2 | |
| 244mCm | 96 | 148 | 6 | |
| 244Cm | 96 | 148 | 0 | |
| 245Bk | 97 | 148 | -3/2 | |
| 246Cf | 98 | 148 | 0 | |
| 247Es | 99 | 148 | 7/2 | |
| 248Fm | 100 | 148 | 0 | |
| 249Md | 101 | 148 | -7/2 | |
| 249mMd | 101 | 148 | -1/2 | |
| 250No | 102 | 148 | 0 |