The mass of proton is _ times heavier than _.
Correct answer: D. 1836, electrons
- A. 1889, electrons
- B. 1886, electrons
- C. 1836, protons
- D. 1836, electrons
Explanation
Remember that the mass of a proton is 1836 times heavier than that of an 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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