| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 196Os | 76 | 120 | 0 | |
| 197mIr | 77 | 120 | -11/2 | |
| 197Ir | 77 | 120 | 3/2 | |
| 198Pt | 78 | 120 | 0 | Stable |
| 199mAu | 79 | 120 | -11/2 | |
| 199Au | 79 | 120 | 3/2 | |
| 200Hg | 80 | 120 | 0 | Stable |
| 201mTl | 81 | 120 | -9/2 | |
| 201Tl | 81 | 120 | 1/2 | |
| 202m2Pb | 82 | 120 | 16 | |
| 202m1Pb | 82 | 120 | -9 | |
| 202m3Pb | 82 | 120 | -19 | |
| 202Pb | 82 | 120 | 0 | |
| 203m1Bi | 83 | 120 | 1/2 | |
| 203m2Bi | 83 | 120 | 25/2 | |
| 203Bi | 83 | 120 | -9/2 | |
| 204Po | 84 | 120 | 0 | |
| 205At | 85 | 120 | -9/2 | |
| 205mAt | 85 | 120 | 29/2 | |
| 206Rn | 86 | 120 | 0 | |
| 207Fr | 87 | 120 | -9/2 | |
| 208Ra | 88 | 120 | 0 | |
| 208mRa | 88 | 120 | 8 | |
| 209Ac | 89 | 120 | -9/2 | |
| 210Th | 90 | 120 | 0 |