How many element were there in Dobereiner periodic table??
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There were only three elements in dobereiners periodic table known as dobereiners triads...
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Answer:three elements
Explanation:
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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