77-Ir-177  basic  element

77-iridium-177 Atomic Mass: 176.9611700 +- 0.0004810 amu # Excess Mass: -36170.000 +- 448.000 keV # Binding Energy: 1404553.000 +- 448.000 keV # Beta Decay Energy: B- -6784.000 +- 545.000 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. Spin: (5/2-) Half life: 30 s Mode of decay: Electron capture to Os-177 Branch ratio: 99.94 % Decay energy: 5.700 MeV Mode of decay: Alpha to Re-173 Branch ratio: 0.06 % Decay energy: 5.130 MeV Possible parent nuclides: Electron capture from Pt-177 Alpha from Au-181 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)