Question

The binding energy of ${}_8{O}^{16}$ is $127MeV$. Its binding energy per nucleon is :

• A. $0.794MeV$
• B. $1.5875MeV$
• C. $7.94MeV$
• D. $15.875MeV$

Answer 1

The correct option is C $7.94MeV$

Nuclear binding energy is the energy that would be required to disassemble the nucleus of an atom into its component parts. These component parts are neutrons and protons, which are collectively called nucleons.

Binding energy per nucleon $=\frac{\text{Binding energy}}{\text{molar mass}}$

Binding energy per nucleon ( in O atom ) $=\frac{127}{16}=7.94MeV$.

Hence, option C is correct.