109-Mt-266  basic  element

109-meitnerium-266 Atomic Mass: 266.1379400 +- 0.0003750 amu # Excess Mass: 128490.000 +- 349.000 keV # Binding Energy: 1933205.000 +- 349.000 keV # "The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra, Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995. Half life: 3.4 ms Mode of decay: Alpha to Bh-262 Branch ratio: ~100.00 % Decay energy: 11.269 MeV Mode of decay: SF Branch ratio: <=5.5 % Decay energy: 11.269 MeV R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)