As the mass number A increases, the binding energy per nucleon in a nucleus

Let Fpp, Fpn and Fnn denote the magnitudes of the net force by a proton on a proton, proton on a neutron and neutron on a neutron. Neglect gravitational force. When the separation is 1fm,

Two protons are kept at a separation of 10nm.Let Fn and Fe be the nuclear force and electromagnetic force between them.

Which of the following the wrong description of the binding energy of the nucleus?

In one average-life,