Is iodine an oxidising agent?

Yes. Iodine is a chemical element with atomic number 53 and a mass number ranging from 108 to 144. Only iodine-127 (with an atomic mass of 126.9) is stable; all other isotopes of iodine are radioactive. Iodine (I) lacks one electron to achieve a complete octet, and is therefore a strong oxidising agent. The element iodine forms diatomic molecules (I₂), in which two iodine atoms share a pair of electrons to achieve a stable octet structure. Iodine has oxidation states ranging from -1 to +7. The iodide ion (I⁻) is the strongest reducing agent among the stable halogens and is the most readily oxidised back to the diatomic iodine molecule (I₂). Iodine in the form of I₂ is a solid with a melting point of 113.7 °C; it sublimates readily upon slight heating.

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