The ratio for an mass-to-charge electron is $5.64 x 10^{- 12}$ $5.64 x 10^(-12)$ kg/C. In another experiment, using Millikan's oil drop apparatus, the found the charge on the electron is $1.605 x 10^{- 19}$ $1.605 x 10^(-19)$ C. What would be the mass of the electron, according to these data?

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Answer 1 · 2017-02-13T09:00:50

We have the ratio $\frac{mass}{charge}$ $"mass"/"charge"$ , and $charge$ $"charge"$ ........

And should I multiply $"mass"/cancel"charge"xxcancel"charge"$ , I should get an answer of $"mass"$ . Let's see:

$5.64xx10^-12*kg*cancel(C^-1)xx1.605xx10^-19*cancelC$

$~=1xx10^30*kg$ for a single electron.

Well, I got the units of mass, which is good, however, you can refine the estimate.