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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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5 ene 1828 año - Johann Dobereiner developed groups of 3 elements with similar properties
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Periodic Table Timeline
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10 oct 2017
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fecha:
5 ene 1828 año
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~ 197 years ago
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