what are the features of dobereiner's traids
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Dobereiner arranged elements in increasing atomic weights in group of 3.This is dobereiner’s triads
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Each of Dobereiner's triads was a group of three elements. The appearance and reactions of the elements in a triad were similar to each other.
-> He showed that in each triad the mean of the lightest and heaviest atomic weights approximated the atomic weight of the middle element.
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