87-Fr-215
 basic

 element
87-francium-215

  • Atomic Mass: 215.0003260 +- 0.0000081 amu
  • Excess Mass: 303.694 +- 7.550 keV
  • Binding Energy: 1666965.964 +- 7.556 keV
  • Beta Decay Energy: B- -2215.247 +- 10.037 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: 86 ns
  • Mode of decay: Alpha to At-211
    • Decay energy: 9.540 MeV

  • Possible parent nuclides:
    Alpha from Ac-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)T1/2Spin    m(nm)    Q(b)    Ref. Std.MethodReference
1500+/-754 ns(21/2)+/-1 g=0.33(10) TDPADNP A419 163 (84)
20164.7 ns29/2+ 7(3) TDPADNP A419 163 (84)
22515.3 ns33/2+ 8(2) TDPADNP A419 163 (84)
306814.6 ns39/2- 9.2(2) TDPADNP A419 163 (84)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.