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99 Percentile Qs Bank for JEE MainChemistryp Block Elements (Group 15, 16, 17 & 18)

What would be the reason that electron affinity of chlorine is higher than fluroine?

Options

  1. AThe incoming electron enters the 3 p -orbital in fluorine.
  2. BThe incoming electron enters the 2 p -orbital in flourine and 3 p -orbital in chlorine.
  3. CThe electron density in fluorine is higher.
  4. DFluorine has lower ionization potential than chlorine.

Correct answer

C. The electron density in fluorine is higher.

Step-by-step solution

Because size of 2p orbital is smaller than 3p orbital hence the electron density in fluorine is higher so high replusion due to this adding of electron is difficult.

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