69-Tm-157

Atomic Mass: 156.9367561 ± 0.0001149 amu
Excess Mass: -58911.333 ± 106.999 keV
Binding Energy: 1272126.629 ± 106.999 keV
Beta Decay Energy: B- -5498.218 ± 118.576 keV

Spin: 1/2+
Half life: 3.63 M ( 2.4793 % )
Mode of decay: Electron capture to Er-157
- Decay energy: 4.480 MeV
Possible parent nuclides:

Electron capture from Yb-157