Naming Ionic Compounds Part 2

Cation positive ion H+ Al³⁺ Anion negative ion Cl- F- For monoatomic ions use the element name. To distinguish between different oxidation states of the same element, the oxidation state is written in parentheses after the name of the cation. Complete the sentence below by filling in the blanks. When the compound contains a polyatomic ion, name the cation followed by the name of the polyatomic ion. An oxyanion is a polyatomic ion composed of an element (usually a non-metal), bonded to one or more oxygen atoms. Complete the sentences below by filling in the blanks. For the most common oxyanion, typically the one with the most oxygen atoms, add the suffix –ate. For the oxyanion with one less oxygen, add the suffix –ite. Complete the sentences below by filling in the blanks. On occasions where there are more than two oxyanions of the same atoms exist, the following rules apply: For the oxyanion with more oxygen atoms than the –ate oxyanion, add the prefix per-.For the oxyanion with less oxygen atoms than the –ite oxyanion, add the prefix hypo-. Naming Ionic Compounds with Differing Oxidation States Match the compound with its name. SnBr₂ tin (II) bromide SnBr₄ tin (IV) bromide CrO chromium (II) oxide Cr₂O₃ chromium (III) oxide What is the name of the following compound: Hg2I2 iron (II) iodide iron (I) iodide mercury (I) iodide mercury (II) iodide What is the name of the following compound: Fe2O3 iron (III) chloride iron (III) oxide mercury (I) oxide iron oxide Naming Oxyanions most common oxyanion -ate one less oxygen atom than the -ate anion -ite one more oxygen atom than the -ate anion per- one less oxygen atom than the -ite anion hypo- Naming Oxyanions KIO₄ potassium periodate KIO₃ potassium iodate KIO₂ potassium iodite KIO potassium hypoiodite