Мельчайшая частица с положительным зарядом.
A tiny particle with a positive charge.
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See how the word “протон” is used in sentences
Протон находится в ядре. — A proton sits in the nucleus.
Насколько тяжёл протон? — How heavy is a proton?
Установка выстреливает протонами в тонкую фольгу. — The machine fires protons at a thin foil.
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