element
Information about Lanthanum-117:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:116.950010±0.000960amu #
    Excess Mass (Δ):-46.565000±0.894000MeV #
    Binding Energy:946.316000±0.894000MeV #
"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.