The binding energy for nucleus A is 7.7 MeV and that for nucleus B is 7.8 MeV. Which nucleus has the larger mass?
Correct answer: C. Nucleus B
- A. Nucleus A
- B. Less than nucleus A
- C. Nucleus B
- D. None of these
Explanation
Binding Energy is the minimum amount of energy required to break all the nucleons (neutrons + protons) from each other.The nucleus has a very strong inter-nuclear force between its protons and neutrons.It was experimentally seen that the mass of individual protons and neutrons is less than the total mass of the nucleus. This mass gap is known as 'Mass Defect'.This 'Mass Defect' is released in the form of energy, known as 'Binding Energy'.Also, the binding energy of the nucleus is directly proportional to the mass of the nucleus.Here in the question, the Nucleus of B has high binding energy therefore, B has the larger Mass.
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