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AP EAMCET202119 Aug 2021Evening ShiftChemistryStructure of AtomActual

Among the given configurations, identify the element which doesn't belong to the same family as the others?

Options

  1. A[ Ne ] 3 s 2 2 p 5
  2. B[ Ar ] 3 d 10 4 s 2
  3. C[ Kr ] 4 d 10 5 s 2
  4. D[ Xe ] 4 f 14 5 d 10 6 s 2

Correct answer

A. [ Ne ] 3 s 2 2 p 5

Step-by-step solution

We know that the valence shell electronic configuration for the d-block element is n - 1 d 10 ns 2 . Hence, in the first option the electronic configuration is Ne 3 s 2 2 p 5 which does not similar to other electronic configuration of n - 1 d 10 ns 2

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