element
Information about Meitnerium-269:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:269.139106±0.000591amu #
    Excess Mass (Δ):129.576000±0.551000MeV #
    Binding Energy:1956.333000±0.551000MeV #
    β- Decay Energy:-5.624000±0.620000MeV #
"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.