element
Information about Potassium-42:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:41.962403±0.000000amu
    Excess Mass (Δ):-35.021319±0.000301MeV
    Binding Energy:359.152163±0.000306MeV
    β- Decay Energy:3.525445±0.000321MeV
"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.
Radioactive Decay Data:

  • Spin: 2-
  • Half life: 12.360 h ( 44496 sec., λ = 1.55777×10-05 s-1)
  • Mode of decay:
    β-
    to
    42
    20
    Ca
      (Q = 3.525 MeV)

  • Possible parent nuclides:
    β- from
    42
    18
    Ar
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)
Magnetic Dipole Moments and Electric Quadrupole Moments
Ex(kev)T1/2Spin    m(nm)    Q(b)    Ref. Std.MethodReference
012.36 h2- -1.1425(6) AB/DPR 184 1102 (69)/BAPS 18 727 (73)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.