Question

Que=> Why Binding energy per nucleon is best criteria for stability of Nucleus instead of Binding energy??


Explain your answer properly ​

Answer 1

Answer:

see below

Explanation:

binding energy explains the stability of nucleus in terms of reduced mass. that means if more mass is reduced, more energy is formed to bind the nulceons. hence the stability

now because binding energy is almost equal for higher elements we have to consider the average or 'per nucleon energy'. then as 'Z' increases, the Energy/nucleons ratio decreases. therefore, we can easily find the trends of nucleus stabilities.....

exampe...

the reduced mass of two nucleons for lower Z is 10 units....but the same is 7 units only for higher Z elements. so they are less stable

Answer 2

$\huge\boxed{\fcolorbox{purple}{pink}{Explanation }}$

★ For greater stability, a nucleus should have greater value of binding energy per nucleon. For elements with large number of protons in the nucleus, the coulomb electrostatic force of repulsion becomes significant and the number of neutrons must be greater to compensate this repulsion effect.

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