87-Fr-214  basic  element

87-francium-214 Atomic Mass: 213.9989547 +- 0.0000098 amu Excess Mass: -973.653 +- 9.152 keV Binding Energy: 1660171.988 +- 9.157 keV Beta Decay Energy: B- -1058.551 +- 13.542 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: (1-) Half life: 5.0 ms Mode of decay: Alpha to At-210 Decay energy: 8.589 MeV Meta state at 0.122 Mev Spin: (8-) Half life: 3.35 ms Mode of decay: Alpha to At-210 Decay energy: 8.711 MeV Possible parent nuclides: Electron capture from Ra-214 Alpha from Ac-218 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 640 148 ns 11+ "+5.62(7) K, d" [213Fr 2538] TDPAD NP A567 445 (94) 0.8(2) [213Fr 2538] LEMS PR C51 3483 (95) 1663 or 16 ns 14- "+8.5(4) K, d" [213Fr 2538] TDPAD NP A567 445 (94) 1734 15 ns 15- level uncertain 4318+D 11.5 ns 27- "+19.7(8) K, d" [213Fr 2538] TDPAD NP A567 445 (94) 6477+D' 156 ns 33+ +22(3) [213Fr 2538] TDPAD NP A567 445 (94) 32+ or 33+ 2.2(5) [213Fr 2538] LEMS PR C51 3483 (95) N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.