33
/es/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
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1 oct 1939 año - Francium
Descripción:
Last natural element to be found,
Añadido al timeline:
Timeline of chemistry
By
Elisabeth Weber
14 feb 2020
0
0
246
fecha:
1 oct 1939 año
Ahora mismo
~ 86 years ago
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