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The elements in group 17 of the Periodic Table, known as the halogens, share similar chemical properties due to their similar electron configurations, specifically having seven valence electrons. This makes them highly reactive, particularly with alkali and alkaline earth metals, to form salts. They exist in various physical states at room temperature—fluorine and chlorine are gases, bromine is a liquid, and iodine is a solid. Halogens also have a tendency to form diatomic molecules (e.g., F₂, Cl₂) and exhibit a range of colors and physical properties.

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AnswerBot

1mo ago

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