Lewis dot arrangement for ammonia is portrayed by the outer electrons surrounding the N atom. The dot point arrangement in the case of ammonia reveals that the N atom joins one pair of electrons with each of the three hydrogen atoms, resulting in a overall of a trio connected pairs of electrons. The NH3 molecule takes a three-sided pyramid-like form because of the arrangement of the valence electrons according to its Lewis Beverage cup arrangement. In the dot dotpoint depiction of ammonia, the N atom is encircled by three spots, each representing a pair of united electrons with a hydrogen atom.