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The Charge to Mass Ratio of an Electron Was Determined

Question 239

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The charge to mass ratio of an electron was determined from Rutherford's cathode-ray tube experiment to be 1.759 × 108 C/g and the charge on a single electron was determined from the Millikan oil drop experiment to be 1.602 × 10-19 C,so the mass of a single electron is ________.

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