Question

In any fission process, the ratio ($\frac{\text{mass of fission product}}{\text{mass of parent nucleus}}$) is _______.

• A. equal to 1
• B. greater than 1
• C. less than 1
• D. depends on the mass of the parent nucleus

Answer 1

The correct option is C less than 1

In the fission reaction, tremendous amount of energy is released and energy corresponds to mass of substance according the Einstein's mass-energy equivalent relation.

Thus ratio of mass of product to the mass of parent nucleus is always less than 1.