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Highly selective Backlog Qs for JEE MainChemistryClassification of Elements and Periodicity in Properties

The screening effect of d -electrons is

Options

  1. AEqual to p -electrons
  2. BMuch more than p -electrons
  3. CSame as f -electrons
  4. DLess than p -electrons.

Correct answer

D. Less than p -electrons.

Step-by-step solution

The screening effect of (d ) - electrons is less than (p ) - electrons. In general, (d ) and (f ) electrons have a poor shielding effect compared to (s ) and (p ) electrons. This is because ( s ) and ( p ) electrons are close to the nucleus whereas ( d ) and ( f ) electrons are more diffused (away from the nucleus).

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