90-Th-225
 basic

 element
90-thorium-225

  • Atomic Mass: 225.0239414 +- 0.0000079 amu
  • Excess Mass: 22301.306 +- 7.352 keV
  • Binding Energy: 1723334.520 +- 7.358 keV
  • Beta Decay Energy: B- -2024.817 +- 71.319 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: (3/2)+
  • Half life: 8.72 min
  • Mode of decay: Alpha to Ra-221
    • Branch ratio: ~90.00 %
    • Decay energy: 6.922 MeV
  • Mode of decay: EC to Ac-225
    • Branch ratio: ~10.00 %
    • Decay energy: 0.675 MeV

  • Possible parent nuclides:
    Alpha from U-229
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)