| Atomic Mass | Mass Excess |
| 156.968115731918 amu | -29.7 MeV |
| Level energy (MeV) | Spin & parity | Half-life | Mode of decay | Branch ratio (%) | Decay energy (MeV) |
| Ground state | (1/2+) | 10.1 MS 0.4 | A | 96.6 | 6.38 |
| Ground state | (1/2+) | 10.1 MS 0.4 | P | 3.4 | 1 |
| Ground state | high | 1.7 MS 0.1 | A | 6.38 | |
| Ground state | 4.3 MS 0.1 | A | 6.38 |
There is no gamma-rays or the intensities are so weak!