In atomic particles:
Correct answer: D. Charge of proton is almost equal to charge of electron
- A. Mass of neutron is almost equal to mass of electron
- B. e/m of a proton is almost equal to e/m of electron
- C. Mass of proton is almost equal to mass of electron
- D. Charge of proton is almost equal to charge of electron
Explanation
Explanation:Both protons and electrons have the same charge in the atomic particles. Hence, the correct answer is D. This option is not correct. The mass of protons and neutrons is 1836 times greater than electrons. This option is also incorrect. As the electron and proton have different masses, the e/m value becomes different.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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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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More Discovery of the Proton questions
The e/m value is maximum for _ gas because of _ value of "m" for positive rays obtained from it.
The mass of proton is _ times heavier than _.
The e/m values for the positive rays depends on _enclosed in a discharge tube.
The charge of one gram of electron is:
The charge on one gram of electrons is:
The constancy of the e/m ratio of electrons shows that: