What is halgen?

Answer 1

A halogen is a group of elements that contain fluorine, chlorine, bromine, iodine, and astatine.

Answer 2

I'm not sure what you mean by "halgen." Did you mean "Halogen"? Halogens are a group of chemical elements that include fluorine, chlorine, bromine, iodine, and astatine. They are highly reactive nonmetals that readily form salts with metals. Let me know if you need more information on this topic.