| Atomic Mass | Mass Excess |
| 141.912946286236 amu | -81.09 MeV |
| Level energy (MeV) | Spin & parity | Half-life | Mode of decay | Branch ratio (%) | Decay energy (MeV) |
| Ground state | 1+ | 40.5 S 0.5 | EC | 100 | 0 |
| .8832 | (8)- | 2.0 MS 0.2 | 0 |
| Decay mode | Half-life | Gamma-ray energy (keV) | Intensity (%) |
| EC | 40.5 S 0.5 | 641.4 | 0.65+- 0.04 |
| EC | 40.5 S 0.5 | 1575.8 | 3.3 |