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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Dinesh khalmaniya 1
28.5 Mev The alpha particle has two proton and two neutron. The combined mass of nuclei =net mass of proton + net mass of neutron =(2×1.007277)+(2×1.00866)=4.031874 amu Binding energy = mass defect =4.031874−4.001265=0.0306amu=0.0306(931.48)=28.5MeV