element
Information about Francium-225:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:225.025607±0.000011amu
    Excess Mass (Δ):23.852683±0.010442MeV
    Binding Energy:1724.130203±0.010446MeV
    β- Decay Energy:1.865271±0.009977MeV
"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.
Radioactive Decay Data:

  • Spin: 3/2-
  • Half life: 4.0 min ( 240 sec., λ = 0.00288811 s-1)
  • Mode of decay:
    β-
    to
    225
    88
    Ra
      (Q = 1.866 MeV)

  • Possible parent nuclides:
    β- from
    225
    86
    Rn
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
03.9 m3/2- +1.07(2) [211Fr]ABLSPL 163B 66 (85)
+1.32(5) st "ABLS, R"PL 163B 66 (85)/NP A468 1 (87)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.