Question

explain halogens
fully define
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Answer 1

Explanation:

Halogens are nonmetals. At room temperature, fluorine and chlorine are gases and bromine is a liquid. Iodine and astatine are solids. Halogens are very reactive, the reactivity decreases from fluorine to astatine. Halogens do not exist in the elemental form in nature. Astatine isotopes are radioactive with short half-lives.

Answer 2

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The halogen are a group in a periodic table consisting of 5 chemically related elements : Fluorine (F) , Chlorine (Cl) , Bromine (Br) , Iodine (I) and Astatine (At).

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