| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 119Ce | 58 | 61 | 5/2 | |
| 120Ce | 58 | 62 | 0 | |
| 121Ce | 58 | 63 | 5/2 | |
| 122Ce | 58 | 64 | 0 | |
| 123Ce | 58 | 65 | 5/2 | |
| 124Ce | 58 | 66 | 0 | |
| 125Ce | 58 | 67 | -7/2 | |
| 126Ce | 58 | 68 | 0 | |
| 127Ce | 58 | 69 | 5/2 | |
| 128Ce | 58 | 70 | 0 | |
| 129Ce | 58 | 71 | 5/2 | |
| 130mCe | 58 | 72 | -7 | |
| 130Ce | 58 | 72 | 0 | |
| 131mCe | 58 | 73 | 1/2 | |
| 131Ce | 58 | 73 | 7/2 | |
| 132mCe | 58 | 74 | -8 | |
| 132Ce | 58 | 74 | 0 | |
| 133mCe | 58 | 75 | -9/2 | |
| 133Ce | 58 | 75 | 1/2 | |
| 134Ce | 58 | 76 | 0 | |
| 135Ce | 58 | 77 | 1/2 | |
| 135mCe | 58 | 77 | -11/2 | |
| 136mCe | 58 | 78 | 10 | |
| 136Ce | 58 | 78 | 0 | Stable |
| 137Ce | 58 | 79 | 3/2 | |
| 137mCe | 58 | 79 | -11/2 | |
| 138mCe | 58 | 80 | -7 | |
| 138Ce | 58 | 80 | 0 | Stable |
| 139Ce | 58 | 81 | 3/2 | |
| 139mCe | 58 | 81 | -11/2 | |
| 140mCe | 58 | 82 | 6 | |
| 140Ce | 58 | 82 | 0 | Stable |
| 141Ce | 58 | 83 | -7/2 | |
| 142Ce | 58 | 84 | 0 | Stable |
| 143Ce | 58 | 85 | -3/2 | |
| 144Ce | 58 | 86 | 0 | |
| 145Ce | 58 | 87 | -3/2 | |
| 146Ce | 58 | 88 | 0 | |
| 147Ce | 58 | 89 | -5/2 | |
| 148Ce | 58 | 90 | 0 | |
| 149Ce | 58 | 91 | -3/2 | |
| 150Ce | 58 | 92 | 0 | |
| 151Ce | 58 | 93 | -3/2 | |
| 152Ce | 58 | 94 | 0 | |
| 153Ce | 58 | 95 | -3/2 | |
| 154Ce | 58 | 96 | 0 | |
| 155Ce | 58 | 97 | -5/2 | |
| 156Ce | 58 | 98 | 0 | |
| 157Ce | 58 | 99 | 7/2 |