## Chemistry: A Molecular Approach (3rd Edition)

SO$_{2}$ - Sufur Dioxide
1. First, begin by writing the name of the first element. S -Sulfur. 2. Since, SO$_{2}$ is a molecular compound (two non-metals joined together), we have to use the appropriate prefix for the second element. 3. Note that the second element, oxygen, has two atoms. This means we have to use the prefix "di" and change oxygen's ending to oxide. 4. Combine the two names to get: $$Sulfur Dioxide$$