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Here's a question I need some help with:

There are two nuclei X and Y [Binding Energy of X = a and Binding Energy of Y = 2a]. Also Binding Energy per nucleon for X = 2b and Binding Energy per nucleon for Y is b. Then which one of the following is true:

(A) X is always more stable than Y

(B) X is more stable than Y if mass number of X is greater than that of Y

(C) Y is always more stable than X

(D) None of the above

I want to know which one (and why) of the two, i.e. Binding Energy or Binding Energy per nucleon decides the criterion for stability. [I know that Binding Energy is the energy released when a nucleus is formed from its constituents, so the lower the energy released the more stable the nucleus should be. From this line of reasoning, the answer is (A). ]

Thanks for your help..

Cheers

Vivek

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# Question about Nuclear Binding energy and stability

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