Lewis Beverage cup structure in the case of NH3 is depicted by the valence electrons surrounding the nitrogen atom. The Lewis dot arrangement for NH3 reveals that the nitrogen atom connects a solitary pair of e- with each of the three hydrogen atoms, resulting in a overall of three united pairs of electrons. The NH3 molecule adopts a three-sided pyramid-like shape due to the distribution of the valence electrons according to its Electron pair Beverage cup arrangement. In the Lewis symbol depiction of ammonia, the N atom is encircled by three points, each representing a pair of joined electrons with a hydrogen atom.