1. Name ___________________________________ Date _____________ Line _________ Mg F Oxidation Numbers Elements combine with other elements depending on their oxidation numbers: IN MOST, BUT NOT ALL CASES (because there are many exceptions to the rule): Everything in… Group ______ has a charge of ______ ex. ________ Group ______ has a charge of ______ ex. ________ Group ______ has a charge of ______ ex. ________ Group ______ has a charge of ______ ex. ________ Group ______ has a charge of ______ ex. ________ Group ______ has a charge of ______ ex. ________ Group ______ has a charge of ______ ex. ________ Group ______ has a charge of ______ ex. ________ Here’s how this works: Bonds are formed when one element is ____________ and the other is _____________ Examples Na has an oxidation number of _______ Mg has an oxidation number of _______ Cl has an oxidation number of _______ F has an oxidation number of _______ The compound is ________________ The compound is ________________ Na Cl

2. How to name a BINARY IONIC COMPOUND: • (________________________________________________________) • STEPS: • ____________________________________________________________________________ • ____________________________________________________________________________ • ____________________________________________________________________________ • EXAMPLE: • NaCl Mg2O AlS • How to name a BINARY COVALENT COMPOUND: • (________________________________________________________) • STEPS: • ______________________________________________ • ______________________________________________ • N2O5 CO2 + ion and element - ion and element Compound Compound Name Li1+ F1- K2O Sodium Iodide

3. Name __________________________________ Date ___________ Oxidation Numbers Fill in the empty spots on the chart for the ionic compounds using what you already have to help. + ion and element - ion and element Compound Compound Name Mg1+ Cl1- BBr3 Potassium Sulfide Al3+ Cl1- Ca2+ N3- Lithium Selenide BeF2 Al3+ O2- BP Strontium Telluride Ba3N2 Na1+ O2- Magnesium Oxide Cs3N