Electron pair dot structure in the case of ammonia is a representation of the outer electrons surrounding the nitrogen atom. The Lewis point structure in the case of ammonia unveils that the nitrogen atom shares 1 pair of e- with each of the three H atoms, resulting in a overall of 3 shared pairs of electrons. The ammonia molecule adopts a trigonal pyramidal form because of the placement of the valence electrons according to its Electron pair dot structure. In the Lewis dotpoint representation of NH3, the nitrogen atom is enclosed by three dots, each representing a pair of united electrons with a hydrogen atom.

315 Covalent Bonding Drawing Lewis Chemistry LibreTexts