124 Covalent Bonds and Lewis Structures Chemistry LibreTexts
Electron pair dot structure in the case of ammonia is a representation of the valence electrons surrounding the nitrogen atom. The Lewis dot arrangement for ammonia unveils that the nitrogen atom unites 1 pair of e- with each of the three hydrogen atoms, resulting in a total of 3 shared pairs of electrons. The ammonia molecule adopts a trigonal pyramidal structure because of the distribution of the valence electrons according to its Electron pair Beverage cup arrangement. In the Lewis symbol representation of NH3, the nitrogen atom is surrounded by three dots, each representing a pair of connected electrons with a hydrogen atom.