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Per NCERT §3.7.1(b), why is a CATION smaller than its parent neutral atom?
ACations lose mass
BCations have a larger orbital
CThe cation has fewer electrons but the same nuclear charge — net pull on remaining electrons increases
DCations gain electrons
Answer & Solution
Correct answer: C. The cation has fewer electrons but the same nuclear charge — net pull on remaining electrons increases
Per NCERT §3.7.1(b), cation = fewer e⁻ with same protons → stronger nuclear pull on remaining electrons → smaller r.
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