Definition	from 'astatos' or unstable. originally called alabamine because of its early reseach at alabama polytechnic institute.
Discovery	1940
Uses	--
Group of Elements	Halogen(Solid)
Atomic Weight	(210)
Oxidation State	+-1
Melting Point	302
Boiling Point	337
Density	-- g/cm3
Electronegativity	2.2