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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
June 15, 2024
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1 sett 1904 anni - J.J Thomson's Plum Pudding Model suggests that an atom is a ball of positive energy with electrons floating in it

Aggiunto al nastro di tempo:

Data:

1 sett 1904 anni
Adesso
~ 119 years ago

Immagini: