What is the electron configuration of Nitrogen (N)?

In determining the electron configuration of Nitrogen, which has an atomic number of 7, it's important to account for the distribution of its 7 electrons in the appropriate orbitals. The first two electrons fill the 1s orbital, resulting in the notation 1s².

Next, the next two electrons occupy the 2s orbital, yielding 2s². This accounts for 4 of the 7 electrons. The remaining 3 electrons then go into the 2p orbital. Since the 2p subshell can hold a maximum of 6 electrons, it can accommodate the 3 remaining electrons from Nitrogen. Thus, the electron configuration continues with 2p³.

Putting it all together, the full electron configuration for Nitrogen is 1s² 2s² 2p³. This setup reflects the Aufbau principle, which states that electrons fill orbitals starting from the lowest energy level moving to higher levels, and it also complies with the Pauli exclusion principle and Hund's rule, which governs electron arrangements in subshells.

Therefore, the correct and complete electron configuration for Nitrogen is indeed 1s² 2s² 2p³.