91-Pa-238
 basic

 element
91-protactinium-238

  • Atomic Mass: 238.0544970 +- 0.0000644 amu
  • Excess Mass: 50763.664 +- 60.033 keV
  • Binding Energy: 1799017.005 +- 60.034 keV
  • Beta Decay Energy: B- 3460.000 +- 60.000 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: (3-)
  • Half life: 2.3 min
  • Mode of decay: Beta to U-238
    • Decay energy: 3.460 MeV
  • Mode of decay: SF
    • Branch ratio: <2.6E-6 %
    • Decay energy: 3.460 MeV
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)