Lewis dot arrangement for NH3 is a representation of the valence electrons surrounding the N atom. The dot dot arrangement for NH3 unveils that the nitrogen atom unites 1 pair of e- with each of the three H atoms, resulting in a overall of 3 joined pairs of electrons. The ammonia molecule takes a three-sided pyramid-like form because of the distribution of the outer electrons according to its Lewis dot structure. In the Lewis dotpoint representation of ammonia, the N atom is enclosed by three points, each representing a pair of united electrons with a H atom.

How to Draw the Lewis Dot Structure for BF3 Boron YouTube