| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 135Tb | 65 | 70 | -7/2 | |
| 136Tb | 65 | 71 | -5 | |
| 137Tb | 65 | 72 | -11/2 | |
| 138Tb | 65 | 73 | -6 | |
| 139Tb | 65 | 74 | -11/2 | |
| 140Tb | 65 | 75 | 5 | |
| 141Tb | 65 | 76 | -5/2 | |
| 141mTb | 65 | 76 | -11/2 | |
| 142m1Tb | 65 | 77 | -5 | |
| 142Tb | 65 | 77 | 1 | |
| 143Tb | 65 | 78 | -11/2 | |
| 143mTb | 65 | 78 | 5/2 | |
| 144m1Tb | 65 | 79 | -6 | |
| 144m4Tb | 65 | 79 | 10 | |
| 144m3Tb | 65 | 79 | 9 | |
| 144m2Tb | 65 | 79 | -8 | |
| 144Tb | 65 | 79 | 1 | |
| 145mTb | 65 | 80 | -11/2 | |
| 145Tb | 65 | 80 | 3/2 | |
| 146m1Tb | 65 | 81 | -5 | |
| 146Tb | 65 | 81 | 1 | |
| 146m2Tb | 65 | 81 | 10 | |
| 147mTb | 65 | 82 | -11/2 | |
| 147Tb | 65 | 82 | 1/2 | |
| 148m2Tb | 65 | 83 | 27 | |
| 148Tb | 65 | 83 | -2 | |
| 148m1Tb | 65 | 83 | 9 | |
| 149Tb | 65 | 84 | 1/2 | |
| 149mTb | 65 | 84 | -11/2 | |
| 150Tb | 65 | 85 | -2 | |
| 150mTb | 65 | 85 | 9 | |
| 151mTb | 65 | 86 | -11/2 | |
| 151Tb | 65 | 86 | 1/2 | |
| 152m1Tb | 65 | 87 | -5 | |
| 152m2Tb | 65 | 87 | 8 | |
| 152Tb | 65 | 87 | -2 | |
| 153Tb | 65 | 88 | 5/2 | |
| 153mTb | 65 | 88 | -11/2 | |
| 154m1Tb | 65 | 89 | -3 | |
| 154m2Tb | 65 | 89 | -7 | |
| 154Tb | 65 | 89 | 0 | |
| 155Tb | 65 | 90 | 3/2 | |
| 156m1Tb | 65 | 91 | -7 | |
| 156m2Tb | 65 | 91 | 0 | |
| 156Tb | 65 | 91 | -3 | |
| 157Tb | 65 | 92 | 3/2 | |
| 158m1Tb | 65 | 93 | 0 | |
| 158Tb | 65 | 93 | -3 | |
| 158m2Tb | 65 | 93 | -7 | |
| 159Tb | 65 | 94 | 3/2 | Stable |
| 160Tb | 65 | 95 | -3 | |
| 161Tb | 65 | 96 | 3/2 | |
| 162Tb | 65 | 97 | -1 | |
| 163Tb | 65 | 98 | 3/2 | |
| 164Tb | 65 | 99 | 5 | |
| 165Tb | 65 | 100 | 3/2 | |
| 166Tb | 65 | 101 | 2 | |
| 167Tb | 65 | 102 | 3/2 | |
| 168Tb | 65 | 103 | -4 | |
| 169Tb | 65 | 104 | 3/2 | |
| 170Tb | 65 | 105 | 0 | |
| 171Tb | 65 | 106 | 3/2 |