Lewis Theory of Bonding Chemistry LibreTexts
Electron pair dot structure for NH3 is portrayed by the outer electrons surrounding the nitrogen atom. The dot point arrangement for ammonia displays that the N atom joins one pair of electrons with each of the three hydrogen atoms, resulting in a total of 3 shared pairs of electrons. The ammonia molecule adopts a three-sided pyramid-like structure because of the distribution of the outer electrons according to its Lewis Beverage cup structure. In the dot symbol representation of ammonia, the N atom is enclosed by three spots, each representing a pair of connected electrons with a hydrogen atom.