Second ionization energy of zinc is lower than the other transition me

1.	Second ionization energy of zinc is lower than the other transition metal of the same series
Answer» in ZINC when then second ELECTRON from 4S is REMOVED will have completely filled 3d subshell which is highly stable than zinc with a half filled 4s

Second ionization energy of zinc is lower than the other transition metal of the same series

Answer»

in ZINC when then second ELECTRON from 4S is REMOVED will have completely filled 3d subshell

which is highly stable than zinc with a half filled 4s