| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 202Ra | 88 | 114 | 0 | |
| 203Ra | 88 | 115 | -3/2 | |
| 203mRa | 88 | 115 | 13/2 | |
| 204Ra | 88 | 116 | 0 | |
| 205Ra | 88 | 117 | -3/2 | |
| 205mRa | 88 | 117 | 13/2 | |
| 206Ra | 88 | 118 | 0 | |
| 207Ra | 88 | 119 | -3/2 | |
| 207mRa | 88 | 119 | 13/2 | |
| 208mRa | 88 | 120 | 8 | |
| 208Ra | 88 | 120 | 0 | |
| 209Ra | 88 | 121 | -5/2 | |
| 210mRa | 88 | 122 | 8 | |
| 210Ra | 88 | 122 | 0 | |
| 211Ra | 88 | 123 | -5/2 | |
| 212m2Ra | 88 | 124 | -11 | |
| 212Ra | 88 | 124 | 0 | |
| 212m1Ra | 88 | 124 | 8 | |
| 213Ra | 88 | 125 | -1/2 | |
| 213mRa | 88 | 125 | -17/2 | |
| 214Ra | 88 | 126 | 0 | |
| 215m1Ra | 88 | 127 | 25/2 | |
| 215m3Ra | 88 | 127 | -43/2 | |
| 215Ra | 88 | 127 | 9/2 | |
| 215m2Ra | 88 | 127 | -29/2 | |
| 216Ra | 88 | 128 | 0 | |
| 217Ra | 88 | 129 | 9/2 | |
| 218Ra | 88 | 130 | 0 | |
| 219Ra | 88 | 131 | 7/2 | |
| 220Ra | 88 | 132 | 0 | |
| 221Ra | 88 | 133 | 5/2 | |
| 222Ra | 88 | 134 | 0 | |
| 223Ra | 88 | 135 | 3/2 | |
| 224Ra | 88 | 136 | 0 | |
| 225Ra | 88 | 137 | 1/2 | |
| 226Ra | 88 | 138 | 0 | |
| 227Ra | 88 | 139 | 3/2 | |
| 228Ra | 88 | 140 | 0 | |
| 229Ra | 88 | 141 | 5/2 | |
| 230Ra | 88 | 142 | 0 | |
| 231mRa | 88 | 143 | 1/2 | |
| 231Ra | 88 | 143 | 5/2 | |
| 232Ra | 88 | 144 | 0 | |
| 233Ra | 88 | 145 | 1/2 | |
| 234Ra | 88 | 146 | 0 |