89-Ac-215  basic  element

89-actinium-215 Atomic Mass: 215.0064508 +- 0.0000581 amu Excess Mass: 6008.911 +- 54.123 keV Binding Energy: 1659696.040 +- 54.123 keV Beta Decay Energy: B- -4914.342 +- 81.290 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: 9/2- Half life: 0.17 s Mode of decay: Alpha to Fr-211 Branch ratio: 99.91 % Decay energy: 7.750 MeV Mode of decay: EC to Ra-215 Branch ratio: 0.09 % Decay energy: 3.490 MeV Possible parent nuclides: Alpha from Pa-219 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 1621 30 ns 17/2- 7.82(16) TDPAD ZP A310 55(83) 1796 185 ns 21/2- 9.7(2) TDPAD ZP A310 55(83) 2438+x 335 ns 29/2+ 15.1(3) TDPAD ZP A310 55(83) N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.