Chemistry, 19.07.2019 17:20 cierramcdonald
1. which answer best completes the following sentence? moseley's assertions about the arrangement of elements actually mendeleev's earlier work on the periodic table. (2 points) discarded disproved emphasized supported 2. why are the elements fluorine (f), chlorine (cl), and bromine (br) all found in the same group within the periodic table? (2 points) they all exist as gases at room temperature. they all react with the noble gases. they have similar chemical properties. they are all non-metals that form 1+ ions.
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