Electron pair dot structure for ammonia is illustrated by the outer electrons surrounding the N atom. The Lewis dot arrangement in the case of ammonia reveals that the nitrogen atom shares one pair of e- with each of the three hydrogen atoms, resulting in a total of three connected pairs of electrons. The NH3 molecule takes a trigonal pyramidal shape due to the placement of the valence electrons according to its Lewis Beverage cup structure. In the dot dotpoint depiction of ammonia, the N atom is enclosed by three dots, each representing a pair of united electrons with a hydrogen atom.