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MHT CET20225 Aug 2022Evening ShiftChemistryd and f Block ElementsActual

What is the number of unpaired electrons present in f -orbital at +3 oxidation state of Lu ( Z =71) ?

Options

  1. A0
  2. B4
  3. C2
  4. D7

Correct answer

A. 0

Step-by-step solution

Lu =[ Xe ] 4 f ¹⁴ 5 ~d ^1 6 ~s ^2 or Lu ⁺³=[ Xe ] 4 f ¹⁴

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