Lewis dot structure in the case of ammonia is shown by the valence electrons surrounding the N atom.
The dot dot structure in the case of NH3 displays that the nitrogen atom connects one pair of electrons with each of the three H atoms, resulting in a overall of 3 shared pairs of electrons.
The ammonia molecule adopts a trigonal pyramidal structure attributed to the distribution of the outer electrons according to its Lewis dot structure.
In the Lewis symbol representation of ammonia, the N atom is encircled by three spots, each representing a pair of joined electrons with a hydrogen atom.
