84-Po-212  basic  element

84-polonium-212 Atomic Mass: 211.9888518 +- 0.0000031 amu Excess Mass: -10384.522 +- 2.909 keV Binding Energy: 1655787.271 +- 2.922 keV Beta Decay Energy: B- -1753.912 +- 2.874 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: 0+ Half life: 0.299 us Mode of decay: Alpha to Pb-208 Decay energy: 8.954 MeV Meta state at 1.355 Mev Spin: 6+ Half life: 0.76 ns Mode of decay: Alpha to Pb-208 Branch ratio: ~71.00 % Decay energy: 10.310 MeV Mode of decay: IT to Po-212 Branch ratio: ~29.00 % Decay energy: 1.355 MeV Meta state at 1.476 Mev Spin: 8+ Half life: 17.1 ns Mode of decay: IT to Po-212 Branch ratio: ~58.00 % Decay energy: 1.476 MeV Mode of decay: Alpha to Pb-208 Branch ratio: ~42.00 % Decay energy: 10.430 MeV Meta state at 2.922 Mev Spin: (18+) Half life: 45.1 s Mode of decay: Alpha to Pb-208 Branch ratio: 99.93 % Decay energy: 11.876 MeV Mode of decay: IT to Po-212 Branch ratio: 0.07 % Decay energy: 2.922 MeV Possible parent nuclides: Beta from Bi-212 Alpha from Rn-216 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)