103-Lr-255  basic  element

103-lawrencium-255 Atomic Mass: 255.0967690 +- 0.0002210 amu # Excess Mass: 90140.000 +- 206.000 keV # Binding Energy: 1887465.000 +- 206.000 keV # Beta Decay Energy: B- -4399.000 +- 292.000 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: 22 s Mode of decay: Alpha to Md-251 Branch ratio: 85.00 % Decay energy: 8.620 MeV Mode of decay: EC to No-255 Branch ratio: <30.00 % Decay energy: 3.240 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)