Match the following species with their corresponding ground state electronic configuration.
`{:(,"Atom/lon",,"Electronic configuration",),((a),"Cu",("i"),1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10),),(("b"),"cu"^(2+),("ii"),1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(2),),(("c"),"Zn"^(2+),"(iii)",1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(1),),(("d"),"cr"^(3+),"(iv)",1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(9),),(,,"(v)",1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(3),):}`

Answer

(a)-(iii); (b)-(iv); (c)-(i); (d)-(v)