Electron pair dot arrangement in the case of ammonia is a representation of the outer electrons surrounding the nitrogen atom. The Lewis dot structure in the case of NH3 exhibits that the nitrogen atom connects 1 pair of e- with each of the three H atoms, resulting in a complete of 3 joined pairs of electrons. The NH3 molecule adopts a three-sided pyramid-like form because of the distribution of the valence electrons according to its Lewis dot structure. In the dot symbol depiction of NH3, the N atom is encircled by three points, each representing a pair of united electrons with a H atom.