Definition: Astatine is the name for the element with atomic number 85 and is represented by the symbol At.
It is a member of the halogen group.
It is a member of the halogen group.
By Anne Marie Helmenstine, Ph.D., About.com Guide
Astatine possesses characteristics common to other halogens, except with more metallic properties.
Justin Urgitis©2012 About.com. All rights reserved.
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