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COMEDK2020Chemistryd and f Block Elements

The electronic configuration of Cr ³⁺ is

Options

  1. A[Ar] 3 d⁵ 4 s¹
  2. B[ Ar ] 3 d² 4 s¹
  3. C[ Ar ] 3 d³ 4 s⁰
  4. D[ Ar ] 3 d⁴ 4 s²

Correct answer

C. [ Ar ] 3 d³ 4 s⁰

Step-by-step solution

Electronic configuration of Cr =[ Ar ] 3 d⁵ 4 s¹ Electronic configuration of Cr ³⁺=[ Ar ] 3 d³ 4 s⁰

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