Lewis Beverage cup arrangement in the case of ammonia is shown by the outer electrons surrounding the nitrogen atom. The dot dot structure in the case of NH3 unveils that the nitrogen atom connects 1 pair of electrons with each of the three hydrogen atoms, resulting in a complete of 3 united pairs of electrons. The NH3 molecule takes a three-sided pyramid-like structure because of the arrangement of the outer electrons according to its Lewis Beverage cup structure. In the Lewis dotpoint depiction of ammonia, the N atom is enclosed by three points, each representing a pair of shared electrons with a H atom.