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31 dic 1804 anni - John Dalton

Descrizione:

He proposed the billiard ball model in which he argued that atoms of each element are combined to make compounds in very simple ratios.

Aggiunto al nastro di tempo:

AtomicHistory_Valdes

4 nov 2019

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Data:

31 dic 1804 anni

Adesso

~ 220 years ago

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