Lewis dot structure for NH3 is portrayed by the outer electrons surrounding the N atom. The Lewis dot arrangement in the case of ammonia reveals that the nitrogen atom unites a solitary pair of electrons with each of the three hydrogen atoms, resulting in a overall of three united pairs of electrons. The ammonia molecule takes a three-sided pyramid-like structure because of the distribution of the valence electrons according to its Electron pair Beverage cup structure. In the Lewis symbol representation of NH3, the nitrogen atom is encircled by three spots, each representing a pair of shared electrons with a hydrogen atom.