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23 gen 1803 anni - John Dalton proposed that all elements consisted of atoms

Descrizione:

1803 John Dalton proposed that all elements consisted of atoms that were identical and had the same mass, compounds were atoms from different elements combined together.

Aggiunto al nastro di tempo:

15 mag 2018
0
0
313

Data:

23 gen 1803 anni
Adesso
~ 222 years ago