| Atomic Mass | Mass Excess |
| 158.940149900822 amu | -55.75 MeV |
| Level energy (MeV) | Spin & parity | Half-life | Mode of decay | Branch ratio (%) | Decay energy (MeV) |
| Ground state | 5/2(-) | 1.58 M 0.14 | EC | 100 | 4.98 |
There is no gamma-rays or the intensities are so weak!