Lewis Beverage cup structure in the case of NH3 is portrayed by the valence electrons surrounding the nitrogen atom.
The dot point structure in the case of NH3 unveils that the N atom shares a solitary pair of electrons with each of the three hydrogen atoms, resulting in a overall of three connected pairs of electrons.
The ammonia molecule adopts a trigonal pyramidal form due to the placement of the valence electrons according to its Electron pair dot structure.
In the dot dotpoint depiction of ammonia, the nitrogen atom is enclosed by three dots, each representing a pair of connected electrons with a H atom.