Question 177: Atoms & Nuclei

Question

The atomic mass of $${ }_6 \mathrm{C}^{12}$$ is $$12.000000 \mathrm{~u}$$ and that of $${ }_6 \mathrm{C}^{13}$$ is $$13.003354 \mathrm{~u}$$. The required energy to remove a neutron from $${ }_6 \mathrm{C}^{13}$$, if mass of neutron is $$1.008665 \mathrm{~u}$$, will be :

Accepted Answer

$$\begin{aligned}
& { }_6 \mathrm{C}^{13}+	ext { Energy } ightarrow{ }_6 \mathrm{C}^{12}+{ }_0 \mathrm{n}^1 \
& \Delta \mathrm{m}=(12.000000+1.008665)-13.003354 \
& =-0.00531 \mathrm{u} \
& 	herefore 	ext { Energy required }=0.00531 	imes 931.5 \mathrm{~MeV} \
& =4.95 \mathrm{~MeV}
\end{aligned}$$

Answer

62.5 MeV

Answer

6.25 MeV

Answer

4.95 MeV

Answer

49.5 MeV

Atoms & Nuclei

The atomic mass of ${ }_6 \mathrm{C}^{12} is 12.000000 \mathrm{~u} and that of { }_6 \mathrm{C}^{13} is 13.003354 \mathrm{~u}. The required energy to remove a neutron from { }_6 \mathrm{C}^{13}, if mass of neutron is 1.008665 \mathrm{~u}$, will be :

Choose the correct answer: