Physics
Parneetnagra
2017-08-18 17:42:00
Particle in the nucleus; similar in size to electron
ANSWERS
FloydAnadio
2017-08-18 23:01:14

Seeing as neither protons or neutrons are similar in size to electrons, you must mean another subatomic particle. Looking at a chart one can find on Google Images (search neutrino size), I would have to say that Up and Down Quarks are closest in size (mass) to electrons.

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