315 Covalent Bonding Drawing Lewis Chemistry LibreTextsElectron pair dot structure in the case of NH3 is a representation of the outer electrons surrounding the nitrogen atom.
The dot point arrangement for NH3 reveals that the N atom connects 1 pair of electrons with each of the three hydrogen atoms, resulting in a complete of 3 joined pairs of electrons.
The NH3 molecule adopts a trigonal pyramidal structure due to the arrangement of the valence electrons according to its Lewis Beverage cup arrangement.
In the dot symbol depiction of NH3, the N atom is encircled by three dots, each representing a pair of joined electrons with a H atom.
