Chapter 16, Problem 10RAT

If an iron nucleus split in two, its fission fragments would have

(a) more mass per nucleon.

(b) less mass per nucleon.

(c) the same mass per nucleon.

(d) either more or less mass per nucleon.

To determine

The correct option for the statement “If an iron nucleus split in two, its fission fragments would have”.

Answer to Problem 10RAT

The correct option for the statement “If an iron nucleus split in two, its fission fragments would have” is option (a).

Explanation of Solution

The nucleus of iron has stability higher than all other elements and its mass per nucleon is the lowest of all other nuclei. The nucleus of iron is also tightly bound. Thus, the energy required to separate a nucleon from the iron nucleus is greater than from other nuclei.

Since the mass per nucleon of iron is the least, the mass per nucleon of the nuclear fragments formed from the splitting of the bigger iron nucleus is greater. Thus, the mass of the fission fragments is also lower than the mass of the iron nucleus.

Conclusion:

Therefore, the correct option for the statement “If an iron nucleus split in two, its fission fragments would have” is option (a).