Arrange the following nuclei in the increasing order of their binding energy per nucleon.

${ }_2^4 He,{ }_3^6 Li,{ }_{26}^{56} Fe,{ }_{92}^{238} U$

Li, He, U, Fe

The correct answer is Option (1) → Li, He, U, Fe

Binding energy per nucleon -

${ }_2^4 He≃7.1MeV/nucleon$

${ }_3^6 Li≃5.3MeV/nucleon$

${ }_{26}^{56} Fe≃8.8MeV/nucleon$

${ }_{92}^{238} U≃7.6MeV/nucleon$