Which two elements will most likely form an ionic bond? (Click on the periodic table icon to view these elements)

Ionic bonds most often form between a metal and a nonmetal: the metal transfers electrons to the nonmetal. Magnesium is a metal and bromine is a nonmetal, so they can form an ionic bond. Calcium and potassium are both metals, krypton is a noble gas, and iodine and chlorine are both nonmetals.

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