Advanced Placement (AP)

Advanced Placement (AP), 07.12.2019 04:31, isa6476

The elements in this family are fluorine, chlorine, bromine, iodine, and astatine. halogens have 7 valence electrons, which explains why they are the most active non-metals. they are never found free in naturj

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The elements in this family are fluorine, chlorine, bromine, iodine, and astatine. halogens have 7 v...

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