Periodic Table -> Iodine

Iodine

Iodine Details

Iodine Symbol: I

Iodine Atomic Number: 53

Iodine Atomic Weight: 126.904

What is Iodine?
Dark violet nonmetallic element, belongs to group 17 of the periodic table. Insoluble in water. Required as a trace element for living organisms. One stable isotope, I-127 exists, in addition to fourteen radioactive isotopes. Chemically the least reactive of the halogens, and the most electropositive metallic halogen. Discovered in 1812 by Courtois.

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