Anuclear binding energy curve is shown below. the elements heavier than lead may undergo fission. the fission fragments lie near the highest point on the curve, each with a higher binding energy per nucleon. similarly the light isotopes may fuse, the product nucleus also have a higher binding energy per nucleon. both processes release energy. 0 50 100 150 200 250 0 1 2 3 4 5 6 7 8 9 10 average binding energy per nucleon (mev) number of nucleons (a, mass number) binding energy per nucleon 2h 4he 6li 16o 35cl 56fe 98mo 107ag127i 159tb 197au 208pb 238u b b b b b b b b b bb b b b b b b b b b b which process releases more energy per nucleon? 1. both must occur in the same process. 2. fission of uranium 3. fusion of hydrogen