All nuclei consist of two types of particles- protaon and neutrons. Nuclear force is the strongest froce. Stability of nucleus is determined by the neutron - proton ratio or mass defect or binding energy per nucleus or packing fraction. Shape of nucleus is calculated by quadrupole moment. Spin of nucleus depends on even or odd mass number. Volume of nucleus depends on the mass number. Whole mass of the atom (nearly `99 %`) is centered at the nucleus. Magnetic moment of the nucleus is measured in terms of the nuclear magnetons.
Binding energy per nucleon is maximum.

Options

A. for lighter order element (lows mass number)
B. for heavier oreder elements (high mass number)
C. for middle order elements
D. equal for all order elements

Answer

c

Explanation

From graph, it is obvious that binding energy per nucleon
`(i.e., `underset (B) rarr =(B)/(A)`)` is maximum for middle order elemnet and its value is around `8.8 MeV` per nucelon.