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→What is Iodine?
==What is Iodine?==
==What is Iodine?==
Iodine, like selenium, is a trace element that is required in only very small quantities. In nature its most common state is in form of salts of the iodide anion (negative ion) I<sup>1-</sup>, such as potassium and sodium iodide, while some sources contain salts of the iodate anion IO<sup>3-</sup>.
Iodine, like selenium, is a '''trace element''' that is required in only very small quantities. In nature its most common state is in form of salts of the iodide anion (negative ion) I<sup>1-</sup>, such as potassium and sodium iodide, while some sources contain salts of the iodate anion IO<sup>3-</sup>.
==Why is it Important?==
==Why is it Important?==