| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 240Pa | 91 | 149 | 0 | |
| 241U | 92 | 149 | 7/2 | |
| 242Np | 93 | 149 | 1 | |
| 242mNp | 93 | 149 | 6 | |
| 243Pu | 94 | 149 | 7/2 | |
| 243mPu | 94 | 149 | 1/2 | |
| 244mAm | 95 | 149 | 1 | |
| 244Am | 95 | 149 | -6 | |
| 245Cm | 96 | 149 | 7/2 | |
| 245mCm | 96 | 149 | 1/2 | |
| 246Bk | 97 | 149 | -2 | |
| 247Cf | 98 | 149 | 7/2 | |
| 248Es | 99 | 149 | -2 | |
| 249Fm | 100 | 149 | 7/2 | |
| 250Md | 101 | 149 | -4 | |
| 251mNo | 102 | 149 | -9/2 | |
| 251No | 102 | 149 | 7/2 | |
| 252Lr | 103 | 149 | -2 | |
| 253Rf | 104 | 149 | 7/2 | |
| 253mRf | 104 | 149 | -1/2 |