Lewis dot structure in the case of NH3 is portrayed by the outer electrons surrounding the nitrogen atom.
The Lewis point arrangement in the case of NH3 exhibits that the nitrogen atom unites a solitary pair of electrons with each of the three hydrogen atoms, resulting in a total of three connected pairs of electrons.
The ammonia molecule takes a trigonal pyramidal shape attributed to the arrangement of the outer electrons according to its Lewis Beverage cup arrangement.
In the Lewis dotpoint depiction of ammonia, the nitrogen atom is encircled by three points, each representing a pair of connected electrons with a hydrogen atom.
Lewis Dot Structure of NH3 ammonia YouTube