Which one of these compounds listed below is least likely to exist, and why? nabr hgcl2 arcl mg3n2 c3h8 cao

Argon chloride, ArCl is least likely to exist.

Argon belongs to the noble gas family. It has an atomic number of 18 and a valence electron configuration: 3s²3p⁶. Since the valence shell is completely filled i.e. it already has an octet configuration, this makes it stable and chemically inert. When approached closely by another element, Cl in this case, the fully filled valence shell of Ar would repel the incoming electron cloud. The only bond that could exist is the extremely weak, long-range Vander-Waals bond between Ar and Cl.

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?