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Manipal MET2013Chemistryd and f Block Elements

Electronic configuration of Gd (64) is written as

Options

  1. A[ Xe ] 4 f^7 5 d^1 6 s^2
  2. B[ Xe ] 4 f^8 6 s^2
  3. C[ Xe ] 4 f^9 6 s^1
  4. D[ Xe ] 4 f¹⁰

Correct answer

A. [ Xe ] 4 f^7 5 d^1 6 s^2

Step-by-step solution

Gd. (64)=[ Xe ] 4 f^7 5 d^1 All electrons are unpaired, hence greater stability

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