8
4
Be
element 		Information about Beryllium-8:

(no NIST x-ray data)(no NIST attenuation data)
WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation
    Mass-Energy Data:

    Atomic Mass:8.005305±0.000000amu
    Excess Mass (Δ):4.941662±0.000035MeV
    Binding Energy:56.499506±0.000037MeV
    β- Decay Energy:-17.979340±0.001107MeV
"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: 0+
  • Half life: 6.8 EV ( 0 sec., λ = inf s-1)
  • Mode of decay: 2α   (Q = 0.092 MeV)

  • Possible parent nuclides:
    β- from
    8
    3
    Li
    β- +
    1
    0
    n from
    9
    3
    Li
    E.C. from
    8
    5
    B
    1
    1
    p+ emission from
    9
    5
    B
    E.C. +
    1
    1
    p+ from
    9
    6
    C
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)