Oxidation Numbers

Before you investigate oxidation numbers it is important that you review the charges associated with different elements. Remember, elements are given a charge based upon the number of valence electrons. In this activity, drag the charges on the right and drop them next to the elements on the left. Once you have matched all of the charges with the correct element, select SUBMIT to check your answers. Click on the interactivity thumbnail, and then click NEXT to get started.