Name__________________________________________ Per _______ Date _______________________ 7.1 & 7.2 Practice Worksheet A Naming Ionic Compounds Part 1: Naming monoatomic ions The process of naming compounds is known to scientists as chemical ____________________ . In order to name binary ionic compounds, we must first be able to name ions appropriately. 1. Name the following atoms & their corresponding cations: A. Mg: __________________________ B. Al: __________________________ C. Rb: __________________________ Mg2+ : _________________________ Al3+: ________________________ Rb+ : _________________________ 2. Name the following atoms & their corresponding anions. Remember: to drop the ending & add “ide” D. E. F. G. I: Cl: Br: S: ___________________________ ___________________________ ___________________________ ___________________________ I- : Cl- : Br- : S 2- : __________________________ __________________________ __________________________ __________________________ 3. Here’s some trickier ones you’ll need to remember: N3- : _____________________ O2- : ______________________ P3- : _________________________ Part 2: Using the stock system for ions with more than one charge Because transition metals can often take more than one charge, we must have a way to indicate this when naming them. In truth, most ___________________ found in the p, d, and f sublevels can have more than one charge. To indicate the specific charge one of these metals is taking in a given compound, we write the __________________ of the metal, followed by a _________________ numeral in parenthesis. Watch out!! The roman numeral indicates the ion’s _______________ , not how many ions are actually present in the compound. 4. Practice naming the following ions with more than one charge: A. Fe3+ : _____________________________ B. Pb2+ : _____________________________ C. Mn2+ : ____________________________ D. Sn4+ : _____________________________ Note: Use roman numerals for all transition metals with 3 exceptions: silver, zinc, and cadmium . This is because their charges never change. Indicate their charges here: ______, ______, _______ Part 3: Writing names of binary ionic compounds In ionic nomenclature, it is not necessary to indicate the number of atoms anywhere in the compound. Just be sure to watch out for ions that take more than one charge. Try the following as practice: 1. Na2O : ___________________________________ 2. MgBr2 : ___________________________________ 3. Be2N3 : ___________________________________ 4. FeN : ___________________________________ 5. SnCl4 : ___________________________________ 6. MnO : ___________________________________ 7. CoCl3 : ___________________________________ 8. ZnBr2 : ___________________________________ Part 4: Naming with polyatomic ions Practice naming the following compounds that contain polyatomic ions. Polyatomic ions are simply named as they are listed on your polyatomic sheet. Do not change their endings! 9. CaSO4 : _________________________________ 10. CaCO3 : ________________________________ 11. NH4Cl : _________________________________ 12. Al2(SO3)3 : ______________________________ Challenging Problems 13. FeSO4 : _________________________________ 14. CuOH : ________________________________ 15. Cr(NO3)2 : ______________________________ 16. KC2H3O2 : ______________________________