Dalton's model of the atom John Dalton suggested that all matter consists of very small particles - atoms. He concluded that atoms are small spherical particles that cannot be separated further. All atoms of the same element are equal to each other. They have the same volume and mass. Atoms of different elements differ in volume and mass. There are as many types of atoms as there are elements. (12 h 39 min, 2 janv. 1808 ans – 14 janv. 1904)
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Date:
12 h 39 min, 2 janv. 1808 ans
14 janv. 1904
~ 96 years