Iodine exhibits both anionic and cationic forms. Its anionic form, iodide (I-), is the negatively charged species commonly found in compounds like potassium iodide. In contrast, the cationic form, iodonium ion (I+), represents the positively charged form of iodine. This distinction arises from iodine’s ability to gain or lose electrons, allowing it to participate in various chemical reactions and form different types of compounds.
