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April 1, 2024
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Aidan Steigelmann Atom Timeline
Created by
Aidan Steigelmann
⟶ Updated 9 Mar 2018 ⟶
List of edits
Timelines by
Aidan Steigelmann
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29 Jan 2018
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329
Song Dynasty
25 Jan 2018
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293
Tang
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Events
Democritus comes up with the Atomic Theory.
John Dalton proposes an Atomic Theory
Dmitri Mendeleev arranged elements into 7 groups.
J.J Thomson discovers the electron.
Ernest Rutherford names the alpha and beta.
R.A. Millikan experiments with the Oil drop experiment.
Niels Bohr explains what happens inside an atom.
Schrodinger developed an "Electron Cloud Model".
Chadwick discovers a neutral atomic particle.