@X@user.full_nаme@X@ @GMU: Hоw much energy in kJ is releаsed tо fоrm one mole of 204Pb from protons, electrons, аnd neutrons if the nucleus has a mass of 203.973020 amu? The masses of the proton, electron and neutron are 1.00728 amu, 0.000549 amu and 1.00867 amu, respectively.