Lewis dot structure in the case of ammonia is illustrated by the outer electrons surrounding the N atom.
The dot dot arrangement for ammonia reveals that the N atom unites a solitary pair of e- with each of the three H atoms, resulting in a total of a trio joined pairs of electrons.
The ammonia molecule adopts a trigonal pyramidal form due to the arrangement of the outer electrons according to its Lewis Beverage cup structure.
In the Lewis symbol depiction of ammonia, the nitrogen atom is encircled by three dots, each representing a pair of united electrons with a H atom.
BF3 Lewis Structure Molecular Geometry and Hybridization