Lewis Beverage cup structure in the case of NH3 is depicted by the valence electrons surrounding the nitrogen atom. The Lewis dot structure for ammonia reveals that the nitrogen atom unites a solitary pair of electrons with each of the three hydrogen atoms, resulting in a overall of three shared pairs of electrons. The ammonia molecule takes a three-sided pyramid-like shape because of the placement of the outer electrons according to its Electron pair Beverage cup arrangement. In the Lewis symbol representation of NH3, the nitrogen atom is surrounded by three dots, each representing a pair of joined electrons with a H atom.