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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 ene 1940 año - Seaborg Synthesised transuranic elements (the elements after uranium in the periodic table)
Añadido al timeline:
Contributions to Periodic table
By
Samuel Benjamin
13 feb 2020
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215
fecha:
1 ene 1940 año
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~ 85 years ago
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