84-Po-198  basic  element

84-polonium-198 Atomic Mass: 197.9833430 +- 0.0001630 amu # Excess Mass: -15516.000 +- 152.000 keV # Binding Energy: 1547920.000 +- 152.000 keV # Beta Decay Energy: B- -8764.701 +- 400.566 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: 1.77 min Mode of decay: Alpha to Pb-194 Branch ratio: 57.00 % Decay energy: 6.309 MeV Mode of decay: EC to Bi-198 Branch ratio: 43.00 % Decay energy: 4.020 MeV Possible parent nuclides: Alpha from Rn-202 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 1854 29 ns 8+ +7.3(2) TDPAD ZP A324 123 (86) 2566 200 ns 11- +12.1(6) TDPAD ZP A324 123 (86) 2692+x 750 ns 12+ -1.86(4) TDPAD ZP A324 123 (86) N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.