most reactive element of Halogen group br,I,At,F,Cl
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Answer: Fluorine is the most reactive halogen element.
Explanation:
Elements belonging to group 7 are known as halogens. It is known that on moving down the group size of atom increases and electronegativity of the atoms decreases.
Similarly, in halogens fluorine is the most electronegative atom. Therefore, it is most reactive in nature as it needs only one electron to complete its octet so, it readily reacts.
On the other hand, astatine being the largest is least reactive.
Thus, fluorine is highly reactive in nature.
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