The nucleus having highest binding energy per nucleon is
The nucleus having highest binding energy per nucleon is
${ }_8^{16} \mathrm{O}$
${ }_{26}^{56} \mathrm{Fe}$
${ }_{84}^{208} \mathrm{~Pb}$
$\frac{4}{2} \mathrm{He}$
Solution
The binding energy per nucleon is practically independent of the atomic number for nuclei of mass number in range $30 < \mathrm{A} < 17^{\circ}$. So, $26^{\mathrm{Fe}^{56}}$ has maximum binding energy per nucleon.