Lewis Beverage cup arrangement in the case of ammonia is depicted by the valence electrons surrounding the nitrogen atom. The dot point arrangement for ammonia exhibits that the N atom joins a solitary pair of e- with each of the three hydrogen atoms, resulting in a complete of a trio united pairs of electrons. The NH3 molecule adopts a three-sided pyramid-like form because of the placement of the valence electrons according to its Lewis dot arrangement. In the Lewis symbol depiction of NH3, the nitrogen atom is surrounded by three spots, each representing a pair of shared electrons with a hydrogen atom.

Lewis Dot Structures Chemistry LibreTexts