Question

For nuclei with A > 100,
(a) the binding energy of the nucleus decreases on an average as A increases
(b) the binding energy per nucleon decreases on an average as A increases
(c) if the nucleus breaks into two roughly equal parts, energy is released
(d) if two nuclei fuse to form a bigger nucleus, energy is released.

Answer 1

mass number of fe ion is taken as a reference point of stability so greater mass number that is more than hundred as given in question so for the stability if it's break into two roughly parts the stability will be gain that means for the stability energy will be released so the option goes with c..

other than that if we see the graph of the stability is of binding per nucleon versus the mass number it first increases and then it goes little downslope so we cannot conclude that that binding energy per nucleon always increases or always decreases because it shows the variation in the graph

Answer 2

The answers are (b) and (c).

Explanation:

There will be a variation in the binding energy per nucleon as it is dependent on the mass number’s (A) actual value. When there is an increase in the mass, there will be an increase in the binding energy too, which reaches 8.7 0eV as the maximum value for A (50-80) and the mass number will be greater than 100. When there is an increase in A, the binding energy per nucleon decreases. And, there will be a breakage of nucleus into two or more atoms and there will be the attainment of sustainability. And, the mass number’s binding energy will fall between 50 and 80.