What are the halogens?
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A halogen is a chemical element that forms a salt when it reacts with metal. Halogen lamps are illuminated by bulbs that contain a halogen and an inert gas.
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Answer:
Halogens is the name given to the Group 17.
Explanation:
They are all non metals.
They are Fluorine , Chlorine, Bromine, Iodine , Astatine.
They have 7 electron in their outermost shell.
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