Which of the following subatomic particles carries a unit negative electrical charge?

💡 Solution & Explanation

The electron is a fundamental subatomic particle possessing a negative electrical charge equal in magnitude to the positive charge of a proton. Protons reside within the atomic nucleus along with neutral neutrons which carry no net electrical charge. Positrons represent the antimatter counterpart of electrons carrying a positive charge. J.J. Thomson discovered the electron through cathode ray tube experiments.