109-Mt-268

Atomic Mass: 268.1388160 ± 0.0003380 amu
Excess Mass: 129306.000 ± 315.000 keV
Binding Energy: 1948532.000 ± 315.000 keV
Beta Decay Energy: B- -4391.000 ± 593.000 keV

Half life: 70 MS ( 92.8571 % )
Mode of decay: Alpha to Bh-264
- Branch ratio: ~ 100.00
- Decay energy: 11.269 MeV
Possible parent nuclides:

Alpha from Xb-272