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JEE Main2012Chemistryd and f Block ElementsActual

The number of unpaired electrons in Gadolinium [ Z =64] is

Options

  1. A3
  2. B8
  3. C6
  4. D2

Correct answer

B. 8

Step-by-step solution

Gd (64)=[ Xe ] 4 f^7 5 d^1 6 s^2 No. of unpaired electrons =8

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