Lewis dot arrangement
for NH3 is illustrated by the outer electrons surrounding the N atom.
The Lewis dot arrangement in the case of
NH3 unveils that the nitrogen atom joins one pair of e- with each of the three H atoms, resulting in a total of 3 united pairs of electrons.
The NH3 molecule adopts a three-sided pyramid-like structure attributed to the arrangement of the valence electrons according to its Lewis dot structure.
In the Lewis symbol depiction of ammonia, the N atom is surrounded by three points, each representing a pair of joined electrons
with a H atom.