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- Proton - Wikipedia
A proton is a stable subatomic particle, symbol p, H +, or 1 H + with a positive electric charge of +1 e (elementary charge) Its mass is slightly less than the mass of a neutron and approximately 1836 times the mass of an electron (the proton-to-electron mass ratio)
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- Proton | Definition, Mass, Charge, Facts | Britannica
Proton, stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge and a rest mass of 1 67262 x 10^-27 kg, which is 1,836 times the mass of an electron
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