Lewis Beverage cup structure for NH3 is a representation of the outer electrons surrounding the N atom.
The Lewis dot arrangement in the case of ammonia displays that the nitrogen atom connects 1 pair of e- with each of the three H atoms, resulting in a overall of 3 connected pairs of electrons.
The ammonia molecule takes a three-sided pyramid-like shape attributed to the distribution of the outer electrons according to its Electron pair Beverage cup structure.
In the dot symbol depiction of ammonia, the N atom is enveloped by three dots, each representing a pair of connected electrons with a H atom.
NH3 Lewis Structure How to Draw the Dot Structure for NH3