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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 ene 1869 año - 1869 Mendeléiv Primera tabla periódica por masas atómicas
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Desarrollo de la tabla periódica
By
Arely
27 ago 2018
0
0
355
fecha:
1 ene 1869 año
Ahora mismo
~ 156 years ago
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