84-Po-205  basic  element

84-polonium-205 Atomic Mass: 204.9811654 +- 0.0000316 amu Excess Mass: -17544.318 +- 29.437 keV Binding Energy: 1606447.808 +- 29.439 keV Beta Decay Energy: B- -4537.266 +- 42.957 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: 1.66 h Mode of decay: Electron capture to Bi-205 Branch ratio: 99.96 % Decay energy: 3.530 MeV Mode of decay: Alpha to Pb-201 Branch ratio: 0.04 % Decay energy: 5.324 MeV Possible parent nuclides: Electron capture from At-205 Alpha from Rn-209 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) Magnetic Dipole Moments and Electric Quadrupole Moments Ex(kev) T1/2 Spin      m(nm)      Q(b)      Ref. Std. Method Reference 0 1.66 h 5/2- +0.76(6) [207Po] NMR/ON ZP A311 351 (83) 880 640 ms 13/2+ -0.95(5) TDPAD Cf74Upp 116 (74) N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.