Sulfide Sulfite Sulfate Ions Difference and Formulas

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In chemistry it is important to be able to tell the difference between the Sulfide, Sulfite, and Sulfate ion. While the names are similar, they are very different substances. • Sulfide is the ion of Sulfur. It's formula is S 2- . • Sulfite is a polyatomic ion with a 2- ionic charge. It's formula is SO3 2 - . • Sulfate is a polyatomic ion with a 2- ionic charge. It's formula is SO4 2- . • It is probably a good idea to memorize the Sulfate ion (SO4 2- ) since it comes up frequently in chemistry. You can then use the naming rule that an ion ending in ite has one less Oxygen atom that the ion ending in -ate. So if Sulfate is SO4 2 , then Sulfite is SO3 2- . This rule can be used with other similar polyatomic ions as well. • Helpful Videos • Memorizing the Polyatomic Ions: • Memorizing and Using the List of Poly... • Finding Ionic Charge for Elements: • Finding the Ionic Charge for Elements... • Lewis Structure for Sulfide ion: • How to Draw the Lewis Dot Structure f... • Lewis Structure for the Sulfite ion: • SO3 2- Lewis Structure - How to Draw ... • Lewis Structure for the Sulfate ion: • How to Draw the Lewis Dot Structure f... • More chemistry help at http:/www.Breslyn.org

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