Lewis Beverage cup arrangement in the case of NH3 is portrayed by the valence electrons surrounding the nitrogen atom.
The Lewis point structure for ammonia exhibits that the N atom connects a solitary pair of electrons with each of the three hydrogen atoms, resulting in a complete of a trio shared pairs of electrons.
The ammonia molecule takes a three-sided pyramid-like form because of the arrangement of the valence electrons according to its Lewis dot
structure.
In the dot symbol representation of NH3, the nitrogen atom is surrounded by three points, each representing a pair of united electrons with a hydrogen atom.
315 Covalent Bonding Drawing Lewis Chemistry LibreTexts