Lewis Beverage cup structure for NH3 is depicted by the valence electrons surrounding the nitrogen atom. The Lewis point arrangement for NH3 reveals that the nitrogen atom joins 1 pair of e- with each of the three H atoms, resulting in a total of a trio united pairs of electrons. The ammonia molecule adopts a trigonal pyramidal form due to the placement of the outer electrons according to its Electron pair dot structure. In the Lewis symbol depiction of NH3, the N atom is enclosed by three points, each representing a pair of shared electrons with a H atom.