| Atomic Mass | Mass Excess |
| 154.933204068684 amu | -62.22 MeV |
| Level energy (MeV) | Spin & parity | Half-life | Mode of decay | Branch ratio (%) | Decay energy (MeV) |
| Ground state | 7/2- | 5.3 M 0.3 | EC | 99.98 | 3.84 |
| Ground state | 7/2- | 5.3 M 0.3 | A | .02 | 4.12 |
There is no gamma-rays or the intensities are so weak!