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What was Johann Dobereiner's contribution to the development of the periodic table?
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What was Johann Dobereiner's contribution to the development of the periodic table?
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Sep 7, 2018
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What was Johann Dobereiner's contribution to the development of the periodic table?
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He identified triads of elements that had similar properties.
Sanjay Rabari
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Sep 13, 2018
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Sanjay Rabari
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