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What Is the Approximate Total Uncertainty in the Velocity of an Electron

Question 150

Multiple Choice

What is the approximate total uncertainty in the velocity of an electron (9.11 ×\times 10-31 kg) confined within a gold atom whose diameter is about 270 pm? The uncertainty in the position of the electron is ±5.0% of the atom's diameter.


A) ±1.4 ×\times 103 m/s
B) ±2.1 ×\times 105 m/s
C) ±3.7 ×\times 105 m/s
D) ±2.1 ×\times 106 m/s
E) ±4.3 ×\times 106 m/s

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