The subatomic particle that has negative charge is___________?
Correct answer: A. Electron
- A. Electron
- B. Proton
- C. Neutron
- D. None of These
Explanation
The electron carries one negative elementary charge, while the proton carries an equal positive charge and the neutron has no charge. Students may choose the neutron because its name sounds related to neutrality, but the negatively charged subatomic particle is the electron.
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About Discovery of the Proton
The discovery of the proton follows the study of positive rays, also called canal rays, observed in discharge tubes and later identified as positively charged particles. The work of Goldstein and Rutherford is linked to the proton's charge, relative mass and role in the nuclear model, distinct from the discovery of the electron.
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