Lewis Beverage cup arrangement in the case of ammonia is illustrated by the outer electrons surrounding the N atom. The dot dot structure in the case of ammonia displays that the nitrogen atom shares a solitary pair of e- with each of the three H atoms, resulting in a complete of three connected pairs of electrons. The NH3 molecule adopts a trigonal pyramidal shape due to the placement of the outer electrons according to its Electron pair Beverage cup arrangement. In the Lewis symbol representation of NH3, the nitrogen atom is enveloped by three points, each representing a pair of shared electrons with a H atom.