6 h 39 m, 31 dic 1807 año - John Dalton
Descripción:
John Dalton created the first atomic theory he had 4 statements
1 Atoms are tiny, invisible particles.
2 Atoms of one element are all the same
3 Atoms of one element are all the same
4 Compounds form by combining atoms
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6 h 39 m, 31 dic 1807 año
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~ 216 years ago
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