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”. All halogens have 7 electrons in their outer shells, giving them an oxidation number of -1.
These are the Halogen elements:
- Fluourine
- Chlorine
- Bromine
- Iodine
- Astatine
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