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IODINE
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Atomic Symbol |
I |
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Atomic Weight |
126.90447 |
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Atomic Number |
53 |
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Electron Configuration |
2-8-18-18-7 |
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Oxidation States |
±1, +5, +7
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State of Matter |
Solid non-metal |
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Boiling Point |
184 °C |
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Melting Point |
113.5 °C |
HISTORY,
BACKGROUND & USES:
Discovered in 1811 by Bernard Courtois. Iodine has a black color and is crystalline. It is used in
medicine, in the synthesis of some organic materials, in the manufacture
of dyes, in analytical chemistry, and in photography. At room
temperature iodine sublimes into a violet vapor that irritates
the eyes, nose, and throat. It dissolves in alcohol and partially
in water to make a brown colored solution.
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