| Atomic Mass | Mass Excess |
| 150.920344080558 amu | -74.199 MeV |
| Level energy (MeV) | Spin & parity | Half-life | Mode of decay | Branch ratio (%) | Decay energy (MeV) |
| Ground state | 7/2- | 124 D 1 | EC | 100 | .464 |
| Ground state | 7/2- | 124 D 1 | A | ~8.0E-7 | 2.653 |
| Decay mode | Half-life | Gamma-ray energy (keV) | Intensity (%) |
| EC | 124 D 1 | 21.517 | 2.85+- 0.23 |
| EC | 124 D 1 | 153.600 | 6.2+- 0.4 |
| EC | 124 D 1 | 174.700 | 2.96+- 0.21 |
| EC | 124 D 1 | 243.29 | 5.6+- 0.4 |
| EC | 124 D 1 | 307.500 | 1.04+- 0.08 |