Electron pair Beverage cup arrangement for ammonia is depicted by the valence electrons surrounding the nitrogen atom. The dot point arrangement in the case of ammonia unveils that the N atom shares 1 pair of electrons with each of the three H atoms, resulting in a complete of 3 united pairs of electrons. The ammonia molecule takes a trigonal pyramidal shape due to the distribution of the valence electrons according to its Electron pair Beverage cup structure. In the dot symbol representation of NH3, the N atom is enclosed by three points, each representing a pair of joined electrons with a hydrogen atom.