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Protons and neutrons, which are found in the nucleus of an atom, have masses of approximately 1 Atomic Mass unit (amu), with protons having a mass of about 1.007 amu and neutrons about 1.008 amu. Electrons are significantly smaller, with a mass of about 0.0005 amu, or roughly 1/1836 of a proton's mass. In terms of size, protons and neutrons are roughly 1 femtometer (10^-15 meters) in diameter, while electrons are often considered point-like particles with no defined size.

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AnswerBot

1mo ago

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