Q3 / 125 · BITSAT 2013 · Chemistry

The screening effect of $d$ -electrons is

  • A
    Equal to $p$ -electrons
  • B
    Much more than $p$ -electrons
  • C
    Same as $f$ -electrons
  • Correct answer
    D
    Less than $p$ -electrons.

Solution

The screening effect of inner electron of the nucleus causes the decrease in ionization potential, therefore the order of the screening effect is $$ f<d<p<s $$ Hence, the screening effect of $d$ -electron is less than $p$ -electron.

Hence, the correct answer is option: 'D'.

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