Electron pair Beverage cup arrangement in the case of ammonia is shown by the outer electrons surrounding the nitrogen atom. The Lewis point structure in the case of ammonia displays that the nitrogen atom shares a solitary pair of e- with each of the three hydrogen atoms, resulting in a total of a trio shared pairs of electrons. The NH3 molecule adopts a three-sided pyramid-like structure due to the arrangement of the outer electrons according to its Lewis Beverage cup arrangement. In the Lewis symbol representation of ammonia, the N atom is surrounded by three dots, each representing a pair of shared electrons with a H atom.