21-Sc-40
 basic

 element
21-scandium-40

  • Atomic Mass: 39.9779640 +- 0.0000044 amu
  • Excess Mass: -20526.386 +- 4.106 keV
  • Binding Energy: 326949.876 +- 4.107 keV
  • Beta Decay Energy: B- -11676.176 +- 160.052 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: 4-
  • Half life: 182.3 ms
  • Mode of decay: Electron capture to Ca-40
    • Decay energy: 14.320 MeV
  • Mode of decay: EC + Proton to K-39
    • Branch ratio: 0.44 %
    • Decay energy: 5.991 MeV
  • Mode of decay: EC + Alpha to Ar-36
    • Branch ratio: 0.02 %
    • Decay energy: 7.279 MeV

  • Possible parent nuclides:
    Electron capture from Ti-40
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)