Chemistry - GENERAL CHEMISTRY Question with Solution | TestHub

Shape of orbital is determined by magnetic quantum number

In hydrogen atom, azimuthal quantum number does not play any role in determining the energy order of subshells.

( $\mathrm{n}+\ell$ ) rule is responsible for differentiating the energy of various subshells in same energy level in single electronic system.

According to Hund's rule, electrons are distributed among the orbitals of a subshell in such a way as to give the maximum number of unpaired electron with opposite spin.