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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 abr 1869 año - Dmitri Mendeleev created the periodic table.
Descripción:
The periodic table was the key to understanding all the elements in one section.
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By
Saisriram Sanjai
15 may 2018
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fecha:
1 abr 1869 año
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~ 156 years ago
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