Lewis Beverage cup structure for NH3 is depicted by the outer electrons surrounding the N atom.
The dot dot structure in the case of NH3 reveals that the N atom unites 1 pair of e- with each of the three H atoms, resulting in a total of a trio joined pairs of electrons.
The NH3 molecule takes a trigonal pyramidal
structure because of the distribution of the valence electrons according to its Lewis dot structure.
In the Lewis symbol depiction of NH3, the N atom is enveloped by three points, each representing a pair of joined electrons with a H atom.