electron excitation from M-shell to N-shell and N-shell to higher shells. We have presented
energy levels, lifetimes and radiative data using Multi-configuration Dirac–Fock (MCDF)
method for the lowest 27 states belonging to the configuration 3d 10 4l (l= 0, 1, 2, 3), 3d 10 5l
(l= 0, 1, 2, 3, 4), 3d 10 6l (l= 0, 1, 2, 3, 4) and 3d 9 4s 2. We have also considered relativistic
effects by incorporating quantum electrodynamics (QED) and Breit corrections. We have …