Question

In a given energy level, the order of penetration effect of different orbitals is

• A. $f<d<p<s$
• B. $s=p=d=f$
• C. $s<p<d<f$
• D. $p>s>d>f$

Answer 1

The correct option is A $f<d<p<s$

The order of penetration effect of different energies of the various sub-shells for the same energy level, e.g., electrons in $s-$ subshell will have lowest energy and thus will be closest to the nucleus and will have highest penetration power, while $p-$ subshell electrons will penetrate the electron cloud to lesser extent and so on.