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- Name : Astatine
- Symbol : At
- Atomic # : 85
- Atom weight: 210 (Most stable isotope)
- Melting P. : 302
- Boiling P. : 337
- Oxidation :
- Pronounced : AS-teh-teen or AS-teh-ten
- From : Greek astatos, "unstable"
- Identified : Dale R. Corson, K.R. MacKenzie, and Emilio Segre at the
- University of California
- Appearance : Unstable, radioactive halogen
- Note : Earlier suggested name was alabamine
-
- [Properties]
-
- The position of astatine on the periodic chart indicates that it should
- share a number of important properties with common iodine. Astatine,
- however, would tend to be somewhat more metallic in its behavior. It is
- difficult to describe anything in detail that exists for such a short
- period of time in such minute quantities.
-