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Multiple Choice
Which of the following best represents the approximate mass of a proton?
A
1.67 \times 10^{-24} \text{ kg}
B
9.11 \times 10^{-31} \text{ kg}
C
1.00 \text{ kg}
D
1.67 \times 10^{-27} \text{ kg}
Verified step by step guidance
1
Recall that the mass of a proton is a fundamental constant in chemistry and physics, often used in atomic and nuclear calculations.
Understand that the mass of a proton is approximately \$1.67 \times 10^{-27}$ kilograms, which is much larger than the mass of an electron but still extremely small compared to everyday objects.
Compare the given options to this known value: \$1.67 \times 10^{-24}\( kg is three orders of magnitude larger, \)9.11 \times 10^{-31}\( kg corresponds to the mass of an electron, and \)1.00$ kg is far too large for a subatomic particle.
Recognize that the correct approximate mass of a proton is closest to \$1.67 \times 10^{-27}$ kg, which matches the accepted scientific value.
Use this knowledge to select the correct answer, understanding the scale and significance of the proton's mass in atomic structure.