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A cation is smaller than its parent atom because it has fewer:
ANeutrons
BNuclei
CElectrons
DProtons
Answer & Solution
Correct answer: C. Electrons
1. Losing an electron does not change the nucleus.
2. The same nuclear charge now holds fewer electrons.
3. So the cation is smaller than the parent atom.
_Source: NCERT Class 11 Chemistry Part I, Chapter 3, Classification of Elements and Periodicity in Properties._
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