| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 204Au | 79 | 125 | -2 | |
| 205Hg | 80 | 125 | -1/2 | |
| 205mHg | 80 | 125 | 13/2 | |
| 206Tl | 81 | 125 | 0 | |
| 206mTl | 81 | 125 | -12 | |
| 207Pb | 82 | 125 | -1/2 | Stable |
| 207mPb | 82 | 125 | 13/2 | |
| 208Bi | 83 | 125 | 5 | |
| 208mBi | 83 | 125 | -10 | |
| 209Po | 84 | 125 | -1/2 | |
| 210At | 85 | 125 | 5 | |
| 210m2At | 85 | 125 | 19 | |
| 210m1At | 85 | 125 | -15 | |
| 211Rn | 86 | 125 | -1/2 | |
| 212Fr | 87 | 125 | 5 | |
| 213Ra | 88 | 125 | -1/2 | |
| 213mRa | 88 | 125 | -17/2 | |
| 214Ac | 89 | 125 | 5 | |
| 215Th | 90 | 125 | -1/2 | |
| 216Pa | 91 | 125 | -3 | |
| 217U | 92 | 125 | -1/2 |