proton is represented _
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A proton is a subatomic particle, symbol. p. or. p + , with a positive electric charge of +1e elementary charge and a mass slightly less than that of a neutron.
Discovered: Observed as H+ by Eugen Goldst...
Mass: 1.67262192369(51)×10−27 kg; 938.272...
Composition: 2 up quarks (u), 1 down quark (d)
Electric charge: +1 e; 1.602176634×10−19 C
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