In this example question, it says provide the name for the following compound, California and CL. All right. So California is calcium and CL is chlorine. We know that the metal keeps its name and is written first, so we have Calcium. But we have to think about does calcium possess multiple charges?
Calcium is in Group 2A on the periodic table. Remember metals in Group 2A, they all have one charge 2+. Because calcium possesses only one charge, it does not require a Roman numeral, so its name would just be Calcium. Then we have chlorine. Remember for the nonmetal we keep its base name, which is core, but then we add I'd to the end of the name.
OCAC. CaCl2 would be called calcium chloride.