Lewis Beverage cup structure in the case of ammonia is illustrated by the valence electrons surrounding the nitrogen atom. The dot dot arrangement for ammonia unveils that the N atom shares a solitary pair of e- with each of the three H atoms, resulting in a total of a trio joined pairs of electrons. The ammonia molecule takes a three-sided pyramid-like shape due to the distribution of the outer electrons according to its Electron pair dot arrangement. In the dot symbol representation of ammonia, the N atom is enclosed by three dots, each representing a pair of united electrons with a hydrogen atom.