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/pt/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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29 maio 1886 ano - Eugen Goldstein discovered the proton by using a cathode-ray tube.
Adicionado na linha do tempo:
chem 1
By
Richard Rowland
23 out 2018
0
0
257
Data:
29 maio 1886 ano
Agora
~ 139 years ago
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