Final answer:Bromine (Br) has chemical properties similar to fluorine because they are both halogens, having seven valence electrons which dictate their similar chemical reactivity.Explanation:The element that has chemical properties similar to fluorine is bromine (Br). Both fluorine and bromine are part of the halogen group in the periodic table, also known as Group 17. Halogens are characterized by having seven valence electrons, which is key to their chemical reactivity. The similarity in chemical properties among elements in the same group occurs because they have the same number of valence electrons, leading to similar behaviors in gaining, losing, or sharing electrons during chemical reactions.The shared characteristics of fluorine and bromine, being members of the halogen group, result from their common electron configuration with seven valence electrons. This uniformity in valence electron count is a fundamental factor influencing their chemical reactivity and properties within the halogen group....

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