Electron pair
dot arrangement for NH3 is a representation of the outer electrons surrounding the N atom.
The Lewis dot structure
in the case of ammonia displays that the N atom connects one pair of e- with each of the three H atoms, resulting in a complete of 3 connected pairs of electrons.
The NH3 molecule takes a three-sided pyramid-like form because of the distribution of the valence electrons according to its Lewis Beverage cup structure.
In the Lewis dotpoint representation of NH3, the nitrogen atom is surrounded by three points, each representing a pair of joined electrons with a hydrogen atom.
