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14-12-2021
Chemistry

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Which elements are halogens? Check all that apply. Chlorine (Cl) oxygen (O) carbon (C) radon (Rn) iodine (I) gallium (Ga).

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matthewfinnell matthewfinnell

14-12-2021

Answer:

Chlorine, and iodine

Explanation:

The halogens contain 7 valence electrons and are always in the group to the left of the noble gases (preferably group 17) By looking at the halogen board, whatever symbol is in the board will apply here

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14-12-2021

Explanation:

Chlorine oxygen carbon iodine are halogens

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