Image is of the periodic table with the transition metals highlighted

Source: Transition Elements, University of Colorado

The last of the main types of ionic bonds involves transition metals. Because of the open spaces in the d orbitals, transition metals will have several possible charges or oxidation numbers. For example, iron has two different ions, Fe2+ or Fe3+. Roman numerals are used in the name to identify the different oxidation numbers.

Interactive exercise. Assistance may be required. Let’s look at a couple of examples.

Video segment. Assistance may be required. Watch the following video to learn more about naming ionic compounds that contain transition metals.

Source: Naming Compounds using Roman Numerals, kentchemistry, YouTube