Four possible electron configurations for a nitrogen atom are shown below, but only one schematic represents the correct configuration for a nitrogen atom in its ground state. which one is the correct electron configuration?
There is only one electronic configuration possible for nitrogen. It must follow the three basic rules of quantum mechanics: Aufbau's Principle, Hund's Rule and Pauli-Exclusion Principle. Nitrogen has 7 electrons at ground state (neutral). They are arranged as shown in the attached picture.