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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 jan 1885 ano - Praseodymium and Neodymium are discovered in Didymium, proving that it's not an element.
Adicionado na linha do tempo:
Timeline of the Big Science
By
Thomas Jacobs
17 abr 2021
0
0
533
Data:
1 jan 1885 ano
Agora
~ 140 years ago
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