104 Writing Lewis Structures Chemistry LibreTextsElectron pair Beverage cup structure in the case of NH3 is depicted by the valence electrons surrounding the N atom.
The dot point structure
for ammonia reveals that the N atom unites one pair of electrons with each of the three hydrogen atoms, resulting in
a total of a trio united pairs of electrons.
The NH3 molecule adopts a trigonal pyramidal form due to the arrangement of the valence electrons according to its Lewis dot structure.
In the dot symbol representation of NH3, the nitrogen atom is encircled by three points, each representing a pair of united electrons with a hydrogen atom.
