85-At-207
 basic

 element
85-astatine-207

  • Atomic Mass: 206.9857759 +- 0.0000227 amu
  • Excess Mass: -13249.698 +- 21.111 keV
  • Binding Energy: 1617513.480 +- 21.113 keV
  • Beta Decay Energy: B- -4611.793 +- 63.432 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: 1.80 h
  • Mode of decay: Electron capture to Po-207
    • Branch ratio: 91.40 %
    • Decay energy: 3.910 MeV
  • Mode of decay: Alpha to Bi-203
    • Branch ratio: 8.60 %
    • Decay energy: 5.873 MeV

  • Possible parent nuclides:
    Electron capture from Rn-207
    Alpha from Fr-211
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
2117108 ns25/2+ +3.75(13) [208Po 1528]TDPADPL 76B 397 (78)/PR C23 272 (81)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.