GK
NUCLEAR SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1
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1836 (approximately)
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1/1836 (approximately)
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Detailed explanation-1: -The mass (weight) of an electron is approximately equal to 1/1836 that of a hydrogen atom, which has one electron and one proton, so an electron is 1/1836th the size of a proton. Electrons carry a small electronically negative charge.
Detailed explanation-2: -The rest mass of the electron is 9.1093837015 × 10−31 kg, which is only 1/1, 836the mass of a proton.
Detailed explanation-3: -Mass of a proton is (1.6726219×10−27kg), approximately 1837 times that of the electron. Hence, the given statement is true. Q. Mass of an electron is approximately 1/1837 times that of mass of proton.
Detailed explanation-4: -Therefore, the mass of an electron is nearly 11840 times the mass of a proton.
Detailed explanation-5: -The mass of an electron is approximately 1/2000 times that of a proton. Hence we may conclude that the mass of electron is almost negligible. Mass of electron is 9.1×10−31.