Lewis dot structure in the case of NH3 is shown by the outer electrons surrounding the N atom. The Lewis dot arrangement for NH3 exhibits that the nitrogen atom unites a solitary pair of electrons with each of the three H atoms, resulting in a overall of three shared pairs of electrons. The ammonia molecule adopts a three-sided pyramid-like structure attributed to the distribution of the outer electrons according to its Lewis dot arrangement. In the dot dotpoint depiction of ammonia, the N atom is enveloped by three dots, each representing a pair of joined electrons with a H atom.