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November 30, 2025
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chem timeline
Category:
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Wurde aktualisiert:
24 Mär 2021
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246
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Created by
Amelie Qwerty
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Ereignisse
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
Perioden
Democritus – particulate matter
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