Electron pair dot arrangement for ammonia is depicted by the outer electrons surrounding the N atom.
The dot point arrangement in the case of NH3 reveals that the N atom unites 1 pair of electrons with each of the three hydrogen atoms, resulting in a total of a trio joined pairs of electrons.
The ammonia molecule adopts a trigonal pyramidal shape because of the placement of the valence electrons according to its Lewis dot structure.
In the Lewis dotpoint depiction of ammonia, the N atom is surrounded by three spots, each representing a pair of connected electrons with a hydrogen atom.
Lewis Structure of Boron Trifluoride BF3
