The atomic masses are:

PHYSICS · Subjective · CBSE · Physics · Nuclei · Nuclei

Problem

^{226}\mathrm{Ra}=226.025402\,\text{u}

^{222}\mathrm{Rn}=222.017570\,\text{u}

and α-particle

=4.002603\,\text{u}

. Calculate the energy released (Q-value) in the α-decay

^{226}\mathrm{Ra} \to {}^{222}\mathrm{Rn}+\alpha.

Give your answer in MeV correct to two significant figures.