Electron pair dot arrangement for ammonia is shown by the valence electrons surrounding the N atom.
The Lewis dot structure for NH3 exhibits that the nitrogen atom shares one pair of e- with each of the three H atoms, resulting in a overall of 3 shared pairs of electrons.
The NH3 molecule takes a three-sided pyramid-like form attributed to the arrangement of the outer electrons according to its Lewis dot structure.
In the Lewis symbol depiction of NH3, the N atom is enveloped by three dots, each representing a pair of connected electrons with a hydrogen atom.
62 Lewis Dot and Bonding Chemistry LibreTexts
