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Lewis Beverage cup structure in the case of ammonia is shown by the outer electrons surrounding the nitrogen atom.
The Lewis dot structure for NH3 unveils that the nitrogen atom shares one pair of e- with each of the three hydrogen atoms, resulting in a complete of three joined pairs of electrons.
The NH3 molecule takes a three-sided pyramid-like shape due to the placement of the valence electrons according to its Lewis Beverage cup structure.
In the Lewis symbol representation of NH3, the N atom is enclosed by three points, each representing a pair of joined electrons with a hydrogen atom.
104 Covalent Lewis Structures Chemistry LibreTexts