Periodic Table Project by Derek Koki https://padlet.com/koki_derek/mtljhscu1l1s The Facts and History of Astatine en-us 2014-11-12 13:53:43 UTC 2014-11-24 14:55:55 UTC hello@padlet.com http://www.eastpennsd.org/teacherpages/dhertzog/_pending/radioactive_symbol.gif Groups and Phases koki_derek https://padlet.com/koki_derek/mtljhscu1l1s/wish/40732633 Astatine is a nonmetal

Family Name: Halogen

Solid at room temperature

]]> 2014-11-12 14:18:02 UTC https://padlet.com/koki_derek/mtljhscu1l1s/wish/40732633 Origins of Astatine koki_derek https://padlet.com/koki_derek/mtljhscu1l1s/wish/40737492 "Astatine" comes from the Greek "astatos," meaning "unstable."

Astatine was discovered by Dale Corson, MacKenzie, Segre in 1940 in California.

]]> 2014-11-12 14:35:55 UTC https://padlet.com/koki_derek/mtljhscu1l1s/wish/40737492 Works Cited koki_derek https://padlet.com/koki_derek/mtljhscu1l1s/wish/41634887 http://www.pakalertpress.com/wp-content/uploads/2011/11/Radioactive_236.jpg

http://www.scholastic.com/content/images/articles/sn_ts/sn_ts_052913_fixed.jpg

http://www.webelements.com/astatine/

http://www.raci.org.au/document/item/397

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

http://www.lookchem.com/Periodic-Table/Astatine/

http://theodoregray.com/periodictable/Samples/Davidite3/s13s.JPG

http://www.chemicalelements.com/bohr/b0085.gif

]]> 2014-11-19 01:26:47 UTC https://padlet.com/koki_derek/mtljhscu1l1s/wish/41634887 Basic Knowledge koki_derek https://padlet.com/koki_derek/mtljhscu1l1s/wish/41634998 Contains element name, symbol, atomic number, and atomic mass.

]]> 2014-11-19 01:28:22 UTC https://padlet.com/koki_derek/mtljhscu1l1s/wish/41634998 Properties of Astatine koki_derek https://padlet.com/koki_derek/mtljhscu1l1s/wish/41637953 Physical:

Melting point: 575 [or 302 °C (576 °F)] K

Boiling point: 503 [or 230 °C (446 °F)] K

Density of solid state: 6400 (estimated) kg m^-3

Chemical:

HIGHLY RADIOACTIVE!!

(similar properties to iodine)

Note: Astatine has been little researched due to its short half-life; it is found only in minute amounts. It is currently the rarest naturally occurring element, with less than 30 grams estimated to be contained in the entire Earth’s crust.

]]> 2014-11-19 02:01:59 UTC https://padlet.com/koki_derek/mtljhscu1l1s/wish/41637953 Uses of Astatine koki_derek https://padlet.com/koki_derek/mtljhscu1l1s/wish/41711882 Astatine-211 is sometimes used as a radioactive tracer and in cancer treatment. Like iodine, it is known to accumulate in the thyroid gland.

]]> 2014-11-19 14:50:27 UTC https://padlet.com/koki_derek/mtljhscu1l1s/wish/41711882 Image of Astatine koki_derek https://padlet.com/koki_derek/mtljhscu1l1s/wish/41714801 2014-11-19 15:00:32 UTC https://padlet.com/koki_derek/mtljhscu1l1s/wish/41714801 Atomic Structure of Astatine koki_derek https://padlet.com/koki_derek/mtljhscu1l1s/wish/41715293 2014-11-19 15:02:27 UTC https://padlet.com/koki_derek/mtljhscu1l1s/wish/41715293