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Lewis dot arrangement in the case of ammonia is depicted by the valence electrons surrounding the N atom. The dot dot arrangement in the case of NH3 exhibits that the N atom shares a solitary pair of e- with each of the three hydrogen atoms, resulting in a complete of three united pairs of electrons. The ammonia molecule takes a trigonal pyramidal shape because of the arrangement of the outer electrons according to its Lewis dot structure. In the dot symbol representation of NH3, the nitrogen atom is enclosed by three points, each representing a pair of united electrons with a hydrogen atom.

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