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

NI$_{3}$ - Nitrogen Triiodide.
1. First, begin by writing the name of the first element. N -Nitrogen. 2. Since, NI$_{3}$ 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 , iodine, has three atoms. This means we have to use the prefix "tri" and change iodine's ending to iodide. 4. Combine the two names to get $$Nitrogen Triiodide.$$