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1 janv. 1897 - J. J. Thomson

Description:

Discovered, when experimenting with cathode ray tubes, that all atoms contain tiny, negatively charged subatomic particles, or electrons. Proposed a model of the atom in which the electrons are embedded within a positively charged 'soup'.
(khanacademy.org)

Ajouté au bande de temps:

Date:

1 janv. 1897
Maintenaint
~ Il y a 128 ans