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NEETChemistryd and f Block Elements

What is the atomic number of the element where the 5f orbitals become complete in the actinoid series?

Options

  1. A92
  2. B93
  3. C103
  4. D90

Correct answer

C. 103

Step-by-step solution

The 5f orbitals are complete at element 103 in the actinoid series.

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