Question
Thu October 04, 2012 By:

what are halogens and radicals?

Expert Reply
Fri October 05, 2012

The halogens are five non-metallic elements found in group 17 of the periodic table. The term "halogen" means "salt-former" and compounds containing halogens are called "salts". 

A radical is a group of atoms of elements, e.g., chromate radical [CrO4]. 
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