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1 gen 1897 anni - J.J. Thomson : His atomic model was called the 'Plum pudding'.He discovered about the electrons and he even noticed that an atom can be divided. He also said that aoms are made of positive cores and negatively charged particles within it.

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Atomic Timeline

ByAlicia Liew
10 set 2017
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1 gen 1897 anni
Adesso
~ 128 years ago
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