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Lewis dot arrangement for ammonia is illustrated by the valence electrons surrounding the nitrogen atom.
The Lewis point arrangement for ammonia exhibits that the N atom joins one pair of e- with each of the three H atoms, resulting in a overall of a trio shared pairs of electrons.
The NH3 molecule takes a three-sided pyramid-like form because of the arrangement of the outer electrons according to its Electron pair dot arrangement.
In the dot symbol depiction of NH3, the nitrogen atom is encircled by three dots, each representing a pair of joined electrons with a H atom.