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1 janv. 1932 - James Chadwick

Description:

James Chadwick assaulted beryllium atoms with alpha particles. An unknown radiation was produced. Chadwick interpreted this radiation as being composed of particles with a neutral electrical charge and the approximate mass of a proton. This particle became known as the neutron.

Ajouté au bande de temps:

Date:

1 janv. 1932
Maintenaint
~ Il y a 93 ans

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