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Periodic Table and Periodicity question

2014 · Q105
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Periodic Table and Periodicity question

2014 · Q105

NEETChemistryPeriodic Table and PeriodicityMCQ+4 / −1
Which of the following orders of ionic radii is correctly represented ?
  1. A
    H−-− > H∙^ \bullet∙ > H+
  2. B
    Na+ > F−-− > O2−-−
  3. C
    F−-− > O2−-− > Na+
  4. D
    Alll3+ > Mg2+ > N3−-−
View written solutionFree

Correct answer: A

Cation loose electrons are smaller in size than the parent atom, where anions gain electrons are larger in size than the parent atom.

Hence the order is H- > H > H+

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