Ionic Compound Formula Practice In each box below, write the name and formula of the compound formed when the metal on the left combines with the nonmetal on the right to form an ionic compound. Fluorine, F Sodium, Na Aluminum, Al Magnesium, Mg Gallium, Ga Calcium, Ca Potassium, K Cesium, Cs Strontium, Sr Chlorine, Cl Oxygen, O Sulfur, S Nitrogen, N