Astatine: An element worth an A+ Mick M. Period 6 I’d tell a good astatine joke but most of them argon Astatine: Metaloid Halogen Family/group 17 Solid at room temperature Melting point ​
575.3°F (301.8°C, 574.95 K) Boiling point 638.3°F (336.8°C, 609.983) Unknown color, presumed very dark Dale Carson discovered it in 1940 Discovered in California, USA Origin of name: Astatos, greek for unstable Found from by bombarding bismuth­209 with alpha particles No known uses Unknown density Electron configuration: 7440­68­8 Electronegativity: 2.2 Reacts to sodium and Hydrogen Since palpatine, what did people call him behind his back? Astatine!
http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_pre_2011/periodic_table/group7rev
1.shtml http://www.livescience.com/39514­facts­about­astatine.html http://www.chemicalelements.com/elements/at.html