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