element
Information about Holmium-142:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:141.959860±0.001070amu #
    Excess Mass (Δ):-37.390000±0.997000MeV #
    Binding Energy:1131.100000±0.997000MeV #
"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.