Lewis Beverage cup structure
in the case of NH3 is portrayed by the outer electrons surrounding the N atom.
The Lewis dot arrangement for NH3 unveils that the nitrogen atom unites 1 pair of electrons with each of the three H atoms, resulting in a complete of 3 shared pairs of electrons.
The NH3 molecule adopts a trigonal pyramidal shape attributed to the distribution of the outer electrons according to its Lewis dot arrangement.
In the dot symbol representation of ammonia, the N atom is enveloped by three spots, each representing a pair of joined electrons with a hydrogen atom.
NH3 ammonia Lewis dot structure YouTube