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  • Halogen Reactivity: Do They Gain One or Two Electrons?
    No, atoms of the halogen family elements typically gain one electron when they react.

    Here's why:

    * Halogens are in Group 17 (VIIA) of the periodic table.

    * They have seven valence electrons (electrons in their outermost shell).

    * To achieve a stable octet configuration (like noble gases), they need one more electron.

    * Therefore, halogens tend to gain one electron to form a negative ion with a charge of -1.

    For example, chlorine (Cl) gains one electron to become a chloride ion (Cl⁻).

    Let me know if you have any other questions!

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