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23 ene 1803 año - John Dalton proposed that all elements consisted of atoms

Descripción:

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.

Añadido al timeline:

15 may 2018
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fecha:

23 ene 1803 año
Ahora mismo
~ 221 years ago