89-Ac-231
 basic

 element
89-actinium-231

  • Atomic Mass: 231.0385515 +- 0.0001074 amu
  • Excess Mass: 35910.488 +- 100.020 keV
  • Binding Energy: 1758935.628 +- 100.021 keV
  • Beta Decay Energy: B- 2100.000 +- 100.000 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: (1/2+)
  • Half life: 7.5 min
  • Mode of decay: Beta to Th-231
    • Decay energy: 2.100 MeV

  • Possible parent nuclides:
    Beta from Ra-231
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)