Arrange the following nuclei in the increasing order of their binding energy per nucleon.
${ }_2^4 He,{ }_3^6 Li,{ }_{26}^{56} Fe,{ }_{92}^{238} U$
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Li, He, U, Fe
Binding energy per nucleon -
${ }_2^4 He≃7.1MeV/nucleon$
${ }_3^6 Li≃5.3MeV/nucleon$
${ }_{26}^{56} Fe≃8.8MeV/nucleon$
${ }_{92}^{238} U≃7.6MeV/nucleon$