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Olympiad workbookNSECClassification of Elements and Periodicity in Properties

Which of the following accounts best for the fact that F ⁻ is smaller than O ²⁻ ?

Options

  1. AF ⁻ has a larger nuclear mass than O ²⁻
  2. BF ⁻ has a larger nuclear charge than O ²⁻
  3. CF ⁻ is more polarizable than O ²⁻
  4. DF is more electronegative than O

Correct answer

B. F ⁻ has a larger nuclear charge than O ²⁻

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