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Per NCERT §3.7.1(a) (final note), why are the radii of NOBLE GASES NOT compared directly with covalent radii of other elements?
ANoble gases are liquids only
BNoble gases have no nucleus
CNoble gases are monoatomic — their non-bonded (van der Waals) radii are much larger and need a different comparison
DNoble gases have no electrons
Answer & Solution
Correct answer: C. Noble gases are monoatomic — their non-bonded (van der Waals) radii are much larger and need a different comparison
Per NCERT §3.7.1(a), noble gases don't form covalent bonds normally → only van der Waals radii available → not comparable to covalent radii.
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