Lewis dot structure in the case of NH3 is portrayed by the outer electrons surrounding the nitrogen atom.
The dot dot structure in the case of ammonia displays that the N atom joins a solitary pair of electrons with each of the three hydrogen atoms, resulting in a overall of 3 united
pairs of electrons.
The NH3 molecule adopts a trigonal pyramidal shape because of the distribution of the valence electrons according to its Electron pair dot structure.
In the Lewis symbol depiction of NH3, the N atom is surrounded by three dots, each representing a pair of united electrons with a hydrogen atom.
Lewis Theory of Bonding Chemistry LibreTexts
