Lewis Beverage cup arrangement in the case of NH3 is illustrated by the valence electrons surrounding the nitrogen atom. The dot point arrangement in the case of NH3 reveals that the N atom connects a solitary pair of electrons with each of the three H atoms, resulting in a total of three united pairs of electrons. The NH3 molecule takes a three-sided pyramid-like shape due to the arrangement of the valence electrons according to its Lewis Beverage cup arrangement. In the Lewis dotpoint depiction of ammonia, the nitrogen atom is enclosed by three points, each representing a pair of joined electrons with a H atom.