Atoms & Nuclei

Two lighter nuclei combine to form a comparatively heavier nucleus by the relation given below : ${ }_{1}^{2} X+{ }_{1}^{2} X={ }_{2}^{4} Y The binding energies per nucleon for \frac{2}{1} X and { }_{2}^{4} Y are 1.1 \,\mathrm{MeV} and 7.6 \,\mathrm{MeV} respectively. The energy released in this process is _______________ \mathrm{MeV}$.