91-Pa-222
 basic

 element
91-protactinium-222

  • Atomic Mass: 222.0237260 +- 0.0000780 amu #
  • Excess Mass: 22100.000 +- 73.000 keV #
  • Binding Energy: 1698539.000 +- 73.000 keV #
  • Beta Decay Energy: B- -2183.000 +- 124.000 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.
  • Half life: 2.9 ms
  • Mode of decay: Alpha to Ac-218
    • Decay energy: 8.850 MeV

  • Possible parent nuclides:
    Alpha from Np-226
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)