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October 1, 2025
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chem timeline
Category:
Autre
mise à jour avec succès:
24 mars 2021
0
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224
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Created by
Amelie Qwerty
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Les événements
john dalton – atoms and elements
Dmitri Mendeleev – periodic table
Jean Baptiste Perrin – proving atoms exist
JJ Thomson – discovering the electron
Ernest Rutherford – discovering the nucleus
Henry Moseley – atomic number
Francis William Aston – discovering isotopes
Niels Bohr – electron energy levels
James Chadwick – discovering neutrons
Périodes
Democritus – particulate matter
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