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Question

The mass of an electron is about 12000times that of a proton.


A
True
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B
False
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Solution

The correct option is A True

Proton and Electron:

  1. Both of them are subatomic particles.
  2. The electron is a subatomic particle that revolves around the nucleus whereas a proton is a subatomic particle in the nucleus with a positive charge.
  3. Mass of electron =9.10x10-31kg and mass of a proton=1.67×10-27kg.
  4. RatioofmassofprotonRatioofmassofelectron=1.67×10-27kg9.1×10-31kg

=0.1835×104=1835

5. Because protons are around 1835 times heavier than electrons, the mass of an electron is about 11835 that of a proton, making the difference negligible.

Therefore, the given statement is true.


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