Lewis Beverage cup structure in the case of NH3 is a representation of the valence electrons surrounding the N atom.
The dot dot arrangement in the case of NH3 displays that the nitrogen atom joins a solitary pair of e- with each of the three H atoms, resulting in a complete of three connected pairs of electrons.
The ammonia molecule takes a three-sided pyramid-like form attributed to the placement of the outer electrons according to its Electron pair dot structure.
In the dot symbol representation of ammonia, the N atom is surrounded by three points, each representing a pair of joined electrons with a hydrogen atom.
