Periodic Table and Element Properties
Learn about the categorization of various elements into groups and periods according to the similarities and differences in their properties. Metals, metalloids, and non-metals are organized separately.
TABLE OF CONTENTS Periodic Table and Element Properties
Astatine
Astatine belongs to group VIIA of the periodic table. It occurs naturally as a result of Uranium and Thorium decay. Bismuth, when bombarded with alpha particles, produces Astatine isotopes, such as At-209 and At-211.
Astatine is a radioactive element. It is the heaviest of all halogens in the periodic table, and the rarest of all naturally occurring elements on earth.
Element Properties
Periodic Table
Copyright SkillSoft Corporation 2006 under license agreement with Books24x7
