Question
The mass of the electrons is negligible when compared to protons.
Answer: Option A
:
A
Atoms have electrons, protons, and neutrons as the fundamental particles.
Subatomic particleMass (kg)Proton1.67262178 × 10−27Neutron 1.6749 × 10−27Electron 9.10938291 × 10−31
Mass of protonMass of electron= 1.67262178×10−279.10938291×10−31 = 1840
Thus, mass of electron is 11840, i.e., 0.0005 times that of proton.
Hence, the mass of an electron is negligible when compared to the mass of proton.
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:
A
Atoms have electrons, protons, and neutrons as the fundamental particles.
Subatomic particleMass (kg)Proton1.67262178 × 10−27Neutron 1.6749 × 10−27Electron 9.10938291 × 10−31
Mass of protonMass of electron= 1.67262178×10−279.10938291×10−31 = 1840
Thus, mass of electron is 11840, i.e., 0.0005 times that of proton.
Hence, the mass of an electron is negligible when compared to the mass of proton.
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