Lewis dot structure in the case
of NH3 is shown by
the valence electrons surrounding the nitrogen atom.
The Lewis dot arrangement for NH3 displays that the nitrogen atom shares a solitary pair of e- 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 form due to the arrangement of the valence electrons according to its Lewis Beverage cup structure.
In the Lewis dotpoint representation of ammonia, the N atom is surrounded by three dots, each representing a pair of joined electrons with a hydrogen atom.