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Iodine

Contents

Used for

I125 isotope, I131 isotope, iodo fatty acid

See for

I element, I- element

Broader Terms

halogen

Related Terms

dietary trace element

Scope Note

nonmetallic element of the halogen group that is represented by the atomic symbol I, atomic number 53, and atomic weight of 126.90; it is a nutritionally essential element and is especially important in thyroid hormone synthesis; in solution, it has anti-infective properties and is used topically.

Facts

  • Iodine is a nonmetallic element belonging to the halogens.
  • Iodine is used especially in medicine and photography and in dyes.
  • Since iodine's a natural substance your thyroid uses to make thyroid hormone, radioactive iodine is collected by your thyroid gland in the same way as non-radioactive iodine.
  • A mineral necessary for normal cell metabolism.
  • An element that is necessary for the body to make thyroid hormone.
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