Question

The screening effect of $d$-electrons is:

• A. equal to the $p$-electrons
• B. much more than the $p$-electrons
• C. same as $f$-electrons
• D. less than the $p$-electrons

Answer 1

The correct option is D less than the $p$-electrons

The inner electrons prevent the outer electrons from experiencing total nuclear charge . This effect is known as screening effect . Screening effect order of orbitals is as follows: $s>p>d>f$.