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Scientific Understanding
Chem – Memorization of Polyatomic Ion Charges
April 20th, 2011 | 
Author: Andrew
Author: Andrew
How do you Better and More Quickly Memorize Polyatomic Ion Charges?
VIDEO Explanation of Tips to Memorize Polyatomic Ions
For many of the polyatomic ions on the list even though their names change like ATE, ITE, PER, HYPO, the charge of their ion does not change.
Examples:
| Sulfate | SO42- |
| Sulfite | SO32- |
| 1 | |
| Nitrate | NO31- |
| Nitrite | NO21- |
PRACTICE PROBLEMS: Without looking at the polyatomic ions list try to write in the missing charge. The first problem is done for you as an example.
| Name | Charge |
| 1 | |
| Hypochlorite | -1 |
| Chlorate | -1 |
| 1 | |
| Carbonate | -2 |
| Carbonite | -2 |
| 1 | |
| Hypoiodite | -1 |
| Periodate | -1 |
| 1 | |
| Phosphate | -3 |
| Phosphite | -3 |
When you finish the lesson, try out the worksheet on polyatomic ions.
Posted in Chemistry
