| Atomic Mass | Mass Excess |
| 156.936757500582 amu | -58.91 MeV |
| Level energy (MeV) | Spin & parity | Half-life | Mode of decay | Branch ratio (%) | Decay energy (MeV) |
| Ground state | 1/2+ | 3.63 M 0.09 | EC | 100 | 4.48 |
There is no gamma-rays or the intensities are so weak!