Une particule minuscule de charge positive.
A tiny particle with a positive charge.
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See how the word “proton” is used in sentences
Un proton se trouve dans le noyau. — A proton sits in the nucleus.
Quelle est la masse d'un proton ? — How heavy is a proton?
La machine envoie des protons sur une fine feuille. — The machine fires protons at a thin foil.
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