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Electron pair dot arrangement in the case of ammonia is illustrated
by the valence electrons surrounding the N atom.
The dot point structure for ammonia displays that the N atom unites 1 pair of electrons with each of the three H atoms, resulting in a total of a trio shared pairs of electrons.
The ammonia molecule adopts a three-sided pyramid-like structure attributed to the distribution of the outer electrons according to its Electron pair dot structure.
In the Lewis symbol representation of NH3, the nitrogen atom is surrounded by three dots, each representing a pair of united electrons with a H atom.