If the two members of a Dobereiner triad are chlorine and iodine, the third member of this triad isFluorineBromineSodiumCalcium
Question
If the two members of a Dobereiner triad are chlorine and iodine, the third member of this triad isFluorineBromineSodiumCalcium
Solution
The third member of this Dobereiner triad, which includes chlorine and iodine, is Bromine.
Dobereiner's triad is a group of three elements, the middle element has properties that are an average of the other two. In this case, the atomic weight of Bromine is approximately the average of the atomic weights of Chlorine and Iodine.
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