Yet astatine (element No. 85) also leaves a “curious void” in the Periodic Table of the Elements: Its properties in solid or liquid, or condensed form, are simply unknown, reports a Cornell team in a study by former postdoctoral associate Andreas Hermann that includes physicist Neil Ashcroft and chemist Roald Hoffmann. The new study theorizes how astatine would look and behave were scientists able to make enough of it to touch and observe (although it would be extremely radioactive).
Ashcroft, the Horace White Professor of Physics Emeritus; Hoffmann, the Frank H.T. Rhodes Professor in Humane Letters Emeritus and 1981 Nobel laureate in chemistry; and Hermann, now at the University of Edinburgh’s Centre for Science at Extreme Conditions, describe theoretical, condensed astatine in a paper accepted for publication in Physical Review Letters. Their paper was spurred by Corson’s groundbreaking discovery.
Read more at: Phys.org