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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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5 lugl 1897 anni - J.J. Thomson discovered the electron. He discovered electrons through the cathode ray.
Aggiunto al nastro di tempo:
chem 1
By
Richard Rowland
23 ott 2018
0
0
257
Data:
5 lugl 1897 anni
Adesso
~ 128 years ago
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