which of these combinations is an ionic compound made of? metal and nonmetal cation and cation metal and…

Brief Explanations:

Ionic compounds are formed by the transfer of electrons from a metal to a non - metal, resulting in the formation of a cation (metal ion) and an anion (non - metal ion). A combination of a metal and a nonmetal forms an ionic compound. Cations are positively charged ions and two cations do not form an ionic compound. A combination of two metals forms an alloy or a metallic compound, not an ionic one. Two nonmetals form a covalent compound through sharing of electrons.

Answer:

Metal and Nonmetal