Chemistry - GENERAL CHEMISTRY Question with Solution | TestHub

The most stable electronic configuration follows Hund's rule and the Aufbau principle. Option A ($1s^{2}2s^{2}2p^2$) correctly fills orbitals in increasing energy, with $2p$ orbitals partially filled according to Hund's rule for maximum stability. Other options show incorrect filling or promotion of electrons to higher energy levels without achieving greater stability.