element
Information about Rutherfordium-261:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:261.108752±0.000114amu #
    Excess Mass (Δ):101.302000±0.107000MeV #
    Binding Energy:1923.949000±0.107000MeV #
    β- Decay Energy:-3.125000±0.255000MeV #
"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:

  • Half life: 65 s ( 65 sec., λ = 0.0106638 s-1)
  • Mode of decay: α to
    257
    102
    No
      (Q = 8.810 MeV)   Branch ratio: >80.00 %
  • Mode of decay: E.C. to
    261
    103
    Lr
      (Q = 1.800 MeV)   Branch ratio: <=10.00 %
  • Mode of decay: SF   Branch ratio: <10.00 %
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)