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MHT CET20242 May 2024Morning ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

Which from following species does not have number of electrons similar to other three species?

Options

  1. ANe
  2. BO ²⁻
  3. CNa
  4. DNa ⁺

Correct answer

C. Na

Step-by-step solution

aligned & Ne =10=1 ~s ^2 2 ~s ^2 2 p ^6 & O ²⁻=10=1 ~s ^2 2 ~s ^2 2 p ^6 & Na ⁺=10=1 ~s ^2 2 ~s ^2 2 p ^6 & Na =11=1 ~s ^2 2 ~s ^2 2 p ^6 3 ~s ^1 aligned

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