Q. The antiparticle of an electron is:
Answer: Positron
Notes: Corresponding to most kinds of particles, there is an associated antiparticle with the same mass and opposite charge (including electric charge). The antiparticle of the electron is the positron (antielectron), which has positive charge and is produced naturally in some of radioactive decays. The opposite is also true: the antiparticle of the positron is the electron.

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