Interactive - Unit 3. Lesson 2c. Naming and writing formulas for ionic compounds

Master naming and writing ionic compound formulas with our interactive practice worksheet!

Watch the video in the link above and consult your textbook. Then choose the correct answer.1. The fluoride ion F2- F- F+ F 2. The oxide ion O2- O2+ O3- NO3- 3. The magnesium ion Mg- Mg3+ Mg- Mg2+ 4. The manganese(II) ion Mg2+ Mg2- Mn2+ Mn 5. The phosphate ion PO33- PO43- PO4- P3- 6. The sulfite ion SO43- SO42- SO32- SO23- II. Watch the explanation about how to write formulas or names. Choose the name or formula for these ionic compounds1. Potasium sulfate K3SO4 KSO4 K2SO3 K2SO4 2. Sodium nitrate Na(NO3) NaNO3 Na2NO3 Na(NO3)2 3. Fe2O3 Iron oxide Iron(II) oxide Iron(III) oxide Iron oxide(III) 4. Barium phosphate Ba2PO4 Ba3(PO4)2 Ba2(PO4)2 BaPO4 III. Choose the correct words from the box to complete these rules. The overall ionic formula for a compound must be electrically neutral, meaning it has no charge. When writing the formula for the ionic compound, the cation comes first, followed by the anion, both with numeric subscripts to indicate the number of atoms of each. Polyatomic ions are a set of covalently bonded atoms that have an overall charge, making them an ion. Polyatomic ions form ionic bonds in the typical way, balancing so that the overall compound is electrically neutral. Use parentheses when you use more than one polyatomic ion to write a subscript.