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October 1, 2025
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chem timeline
Category:
Otro
Actualizado:
24 mar 2021
0
0
223
Autores
Created by
Amelie Qwerty
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Eventos
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
Períodos
Democritus – particulate matter
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