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NEETChemistryd and f Block Elements

Write the electronic configuration of the element with the atomic number 91

Options

  1. A[Rn]5f 3 6d 2 7s 1
  2. B[Rn]5f 3 6d 4 7s 2
  3. C[Rn]5f 4 6d 1 7s 2
  4. D[Rn]5f 2 6d 1 7s 2

Correct answer

D. [Rn]5f 2 6d 1 7s 2

Step-by-step solution

Correct Option is : (D) [Rn]5f 2 6d 1 7s 2

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