Electron pair dot structure in the case of NH3 is a representation of the valence electrons surrounding the N atom. The dot point arrangement for ammonia displays that the nitrogen atom joins a solitary pair of electrons with each of the three H atoms, resulting in a overall of three joined pairs of electrons. The ammonia molecule takes a three-sided pyramid-like shape due to the arrangement of the valence electrons according to its Lewis Beverage cup structure. In the dot symbol representation of NH3, the nitrogen atom is encircled by three points, each representing a pair of shared electrons with a H atom.