Question

AMONG THE FOLLOWING TRANSITION ELEMENTS , PICK OUT THE ELEMENT/ELEMENTS WITH HIGHEST SECOND IONISATION ENERGY
A.V(Z=23)
B.Cr(Z=24)
C.Mn(Z=25)
D.Cu(Z=29
E.Zn(Z=30)
1.A. & C.
2.B. & D.
3.B. & E.
4. D.
5.C.

Answer 1

option d is the correct answer because it has a very stable con figuration