Lewis Beverage cup structure in the case of ammonia is shown by the outer electrons surrounding the nitrogen atom.
The dot dot arrangement for ammonia exhibits that the N atom unites one pair of electrons with each of the three hydrogen atoms, resulting
in a complete of a trio joined pairs of electrons.
The ammonia molecule adopts a three-sided pyramid-like shape due to the arrangement of the outer electrons according to its Lewis dot structure.
In the Lewis symbol depiction of NH3, the N atom is enclosed by three dots, each representing a pair of connected electrons with a H atom.