Calculate the binding energy per nucleon (in J) for ³He and He. The atomic masses are 3.016029 u for ³He, and 4.002603 u for "He. (Enter unrounded values. Assume that the mass of H= 1.007825 u, m₂ = 1.007275 u, m₁ = 1.008666 u, and me = 0.000549 u, respectively.) 3He 3/nucleon 4He J/nucleon
Binding energy :-
binding energy, amount of energy required to separate a particle from a system of particles or to disperse all the particles of the system. Binding energy is especially applicable to subatomic particles in atomic nuclei, to electrons bound to nuclei in atoms, and to atoms and ions bound together in crystals.
Binding energy is given by
Eb = ∆m.C2
Where Eb = binding energy
∆m = mass defect
C = speed of light
Mass defect ∆m :-
Mass defect is the difference between the actual atomic mass and the predicted mass calculated by adding the mass of protons and neutrons present in the nucleus. The actual atomic mass is less than the predicted mass calculated by adding the masses of nucleons.
∆m = predicted mass - actual atomic mass
= (Zmp + Nmn + Zme) - mA
Where Z = number of proton= number of electrons
N = number of neutrons
mp = mass of proton
mn = mass of neutron
me = mass of electron
mA = atomic mass
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