Lewis Beverage cup arrangement in the case of ammonia is a representation of the outer electrons surrounding the nitrogen atom.
The Lewis dot arrangement for ammonia displays that the N atom unites 1 pair of electrons with each of the three H atoms, resulting in a total of three joined pairs of electrons.
The NH3 molecule takes a three-sided pyramid-like shape due to the arrangement of the valence electrons according to its Electron pair dot structure.
In the Lewis symbol representation of NH3, the nitrogen atom is enveloped by three spots, each representing a pair of connected electrons with a hydrogen atom.
124 Covalent Bonds and Lewis Structures Chemistry LibreTexts
