62 Lewis Dot and Bonding Chemistry LibreTexts
Electron pair dot arrangement for ammonia is illustrated by the outer electrons surrounding the nitrogen atom. The Lewis point structure for NH3 reveals that the nitrogen atom shares a solitary pair of e- with each of the three hydrogen atoms, resulting in a overall of 3 connected pairs of electrons. The NH3 molecule adopts a three-sided pyramid-like form attributed to the placement of the valence electrons according to its Lewis dot arrangement. In the dot symbol depiction of NH3, the N atom is encircled by three spots, each representing a pair of united electrons with a hydrogen atom.