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NEETChemistryd and f Block Elements

What is the electronic configuration of Co 2+ ?

Options

  1. A[Ar]3d 5 4s 2
  2. B[Ar]3d 8
  3. C[Ar]3d 7
  4. D[Ar]3d 2 4s 2

Correct answer

C. [Ar]3d 7

Step-by-step solution

Correct Option is : (C) [Ar]3d 7

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