Electron pair dot arrangement in the case of ammonia is depicted by the outer electrons surrounding the N atom. The Lewis dot structure for ammonia displays that the nitrogen atom shares 1 pair of electrons with each of the three H atoms, resulting in a complete of a trio connected pairs of electrons. The NH3 molecule takes a three-sided pyramid-like structure due to the distribution of the outer electrons according to its Electron pair dot arrangement. In the dot dotpoint representation of ammonia, the N atom is enveloped by three points, each representing a pair of joined electrons with a hydrogen atom.