  A systematic study of the ground state properties of the entire chains of
even even neutron magic nuclei represented by isotones of traditional neutron
magic numbers N = 8, 20, 40, 50, 82 and 126 has been carried out using
relativistic mean field (rmf) plus Bardeen Cooper Schrieffer (BCS) approach.
Our present investigation includes deformation, binding energy, two proton
separation energy, single particle energy, rms radii along with proton and
neutron density profiles, etc. Several of these results are compared with the
results calculated using non relativistic approach (Skyrme Hartree Fock method)
along with available experimental data and indeed they are found with excellent
agreement. In addition, the possible locations of the proton and neutron drip
lines, the (Z,N) values for the new shell closures, disappearance of
traditional shell closures as suggested by the detailed analyzes of results are
also discussed in detail.
