Question

The ratio of mass defect of the nucleus to its mass number is maximum for

• A. $U^{238}$
• B. $N^{14}$
• C. $Si^{28}$
• D. $Fe^{56}$

Answer 1

Answer: (D)

$Fe^{56}$

Answer 2

Binding energy per nucleon is maximum for $Fe^{56}$ . Binding energy is directly related with mass defect. Therefore, ratio of mass defect to mass number is maximum for $Fe^{56}$.