Which two particles in an atom have the same mass ? protons and electrons or protons and neutrons

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asked Jul 17, 2016 85.2k views

1 Answer

John Fowler · Answer 1 · 2016-07-23T14:34:27+0000

Protons and neutrons have about the same mass. Electrons are the smallest out of the three, in fact, protons weigh 1,836 times more than an electron.