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

Options

A. `f lt p lt d lt s`
B. `s lt p lt d lt f`
C. `f lt d lt p lt s`
D. `s = p = d = f`

Answer

C

Explanation

The order of penetration effect of different orbitals depends upon the different energies of the various subshells 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 cloub to lesser extent and so on.