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Naming Ionic Compounds with Variable Charge Metals

In this video, we focus on multivalent (variable-charge) ionic compounds and how to name them and write their chemical formulas correctly. You’ll learn how to determine which charge a metal is using in a compound and how to apply Roman numerals properly when naming. We walk through how to use the periodic table and the overall charge balance of a compound to identify the correct oxidation state, rather than guessing. Clear examples show how the same metal can form more than one ion, and how that affects both the name and the formula. This lesson builds on earlier work with binary ionic compounds and is part of the RMJ Science series on inorganic nomenclature. It is designed for high school chemistry and introductory chemistry courses, with an emphasis on understanding the underlying rules so you can apply them confidently in new situations. Check out the nomenclature playlist here:    • Inorganic Nomenclature