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23 janv. 1803 - John Dalton proposed that all elements consisted of atoms

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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.

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BySaisriram Sanjai
15 mai 2018
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23 janv. 1803
Maintenaint
~ Il y a 222 ans
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