Lewis Beverage cup structure in the case of NH3 is a representation of the outer electrons surrounding the nitrogen atom. The Lewis dot arrangement for NH3 reveals that the N atom unites a solitary pair of e- with each of the three hydrogen atoms, resulting in a complete of 3 joined pairs of electrons. The ammonia molecule adopts a trigonal pyramidal shape attributed to the arrangement of the valence electrons according to its Lewis dot arrangement. In the Lewis symbol representation of NH3, the N atom is surrounded by three dots, each representing a pair of shared electrons with a hydrogen atom.

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