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MHT CET202312 May 2023Morning ShiftChemistryStructure of AtomActual

Which of following pairs is an example of isoelectronic species?

Options

  1. AO ⁻⁻ ; Na ⁺
  2. BO ⁻⁻ ; F
  3. CK ; Ca ⁺⁺
  4. DAr ; Al ⁺³

Correct answer

A. O ⁻⁻ ; Na ⁺

Step-by-step solution

Atoms and ions having the same number of electrons are isoelectronic species. O ⁻⁻ and Na ⁺ containing 10 electrons each are isoelectronic species.

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