Chemistry, 04.11.2019 00:31 SunsetPrincess
Why are the elements fluorine (f) , chlorine (cl) , and bromine (br) all found in the same group within the periodic table? a) they all exist as gases at 20°c) . b) they all react with the noble gases. c) they have the same chemical properties. d) they are all non-metals that form 1+ ions.
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