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Astatine (version 1) - Periodic Table of Videos

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NEWER ASTATINE VIDEO: https://youtu.be/GP8jJgzEmwE Because of its radioactivity and short half life, Astatine is an element few chemists come into contact with.

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http://www.chemistryexplained.com/elements/A-C/Astatine.html#ixzz4x3dTIoOv

http://www.rsc.org/periodic-table/element/85/astatine

https://www.chemicool.com/elements/astatine.html

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Isotopes-All 20 of astatine's isotopes are radioactive.
Uses-to treat certain diseases of the thyroid, such as thyroid cancer. When swallowed, the astatine would go to the thyroid. There, the radiation it gives off would kill cancer cells in the gland.

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Melting point-575.3°F (301.8°C)
Boiling point-350°C, 662°F, 623 K
Density-unknown
Abundance in earths crust-25 grams

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Metalloid, sometimes could be seen/classified as a nonmetal, or a metal.
Family/Group element
Halogens, Particularly iodine

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In 1939, 2 groups came close to discovering the element in mineral samples.  Element 85 was completely produced for the first time at the University of California in 1940 created by Dale R. Carson, K.R. Mackenzie, and Emilio Segre. Their Astatine was made by bombarding bismuth with alpha particles.

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Astatine got it name from the Greek language word, astatos and unstable.

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Naturally occurring astatine isotopes has been found, but less than 1 ounce of astatine usually occurs in the Earth's crust by it generally reassembling iodine and, like iodine, concentrates in the thyroid gland of the higher animals.