The electronic configuration of Ni2+ is ……….. (Atomic number of

1.	The electronic configuration of Ni2+ is ……….. (Atomic number of Ni = 28)(A) [Ar] 4s2 3d6 (B) [Ar] 4s1 3d8(C) [Ar] 3d8 (D) [Ar] 4s2 3d8
Answer» Correct Option is : (C) \([Ar] \ 3d^8\) Electronic configuration of Ni (z = 28) = \(1s^2 \ 2s^2 \ 2p^6 \ 3s^2 \ 3p^6 \ 3d^8 \ 4s^2\) or, [Ar] \(3d^8 \ 4s^2\) Electronic configuration of \(Ni^{+2}\) is = \([Ar] \ 3d^8\) Option : (C) [Ar] 3d⁸

The electronic configuration of Ni2+ is ……….. (Atomic number of Ni = 28)(A) [Ar] 4s2 3d6 (B) [Ar] 4s1 3d8(C) [Ar] 3d8 (D) [Ar] 4s2 3d8

Answer»

Correct Option is : (C) \([Ar] \ 3d^8\)

Electronic configuration of Ni (z = 28)

= \(1s^2 \ 2s^2 \ 2p^6 \ 3s^2 \ 3p^6 \ 3d^8 \ 4s^2\)

or, [Ar] \(3d^8 \ 4s^2\)

Electronic configuration of \(Ni^{+2}\) is

= \([Ar] \ 3d^8\)

Option : (C) [Ar] 3d⁸