what is halogens????????????
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Halogens is the name given to Elements in the group-
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Halogens is the common name given to the 17th group elements of the periodic table.However the element 'tennessine' is man-made and radioactive.Although it falls in this group it cannot be called as a halogen.
The elements belonging to the halogen group are :
Fluorine,Chlorine,Bromine,Iodine, Astatine.
They are so called because of their property of forming salts .
They react with active metals to form ionic compounds .
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