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15 agos 1904 anni - Plum Pudding Model: Created by J.J Thomson; Negative electrons represent raisins, embedded in the dough (a positively charged substrate); The atom is composed of electrons surrounded by a soup of positive charge to balance the electrons' negative charges

Aggiunto al nastro di tempo:

Data:

15 agos 1904 anni
Adesso
~ 121 years ago

Immagini: