Chemistry-
General
Easy

Question

Which of the following ion is the smallest ion

  1. O subscript 2 end subscript superscript plus end superscript  
  2. O subscript 2 end subscript superscript minus end superscript  
  3. O subscript 2 end subscript  
  4. O subscript 2 end subscript superscript negative 2 end superscript  

The correct answer is: O subscript 2 end subscript superscript plus end superscript


    Cation has small size than parent atom and anion has greater size than parent atom.

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