Lewis Theory of Bonding Chemistry LibreTexts
Electron pair Beverage cup structure in the case of ammonia is a representation of the valence electrons surrounding the N atom. The Lewis point structure in the case of NH3 reveals that the nitrogen atom unites a solitary pair of electrons with each of the three H atoms, resulting in a complete of 3 united pairs of electrons. The ammonia molecule takes a trigonal pyramidal shape due to the distribution of the outer electrons according to its Lewis dot arrangement. In the Lewis dotpoint representation of NH3, the nitrogen atom is enveloped by three spots, each representing a pair of connected electrons with a hydrogen atom.