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13 ene 1897 año - jj thompson

Descripción:

J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged.

Añadido al timeline:

atomic theory

Byabdelrahman nassar
28 sep 2018

fecha:

13 ene 1897 año
Ahora mismo
~ 127 years ago

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