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Lewis Beverage cup structure in the case of NH3 is shown by the outer electrons surrounding the nitrogen atom.
The Lewis dot arrangement for ammonia unveils that the nitrogen atom connects 1 pair of e- with each of the three hydrogen atoms, resulting in a complete of a trio united pairs of electrons.
The ammonia molecule adopts a three-sided pyramid-like structure because of the distribution of the valence electrons according to its Lewis Beverage cup structure.
In the Lewis symbol representation of ammonia, the nitrogen atom is surrounded by three dots, each representing a pair of joined electrons with a H atom.