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I've been wondering about the velocity of hydrogen electrons. I've read that 242,000 m/s was the correct velocity, however, I thought electrons would travel at c. How does one calculate this number?

Thanks in advance.

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- Thread starter nuby
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- #1

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I've been wondering about the velocity of hydrogen electrons. I've read that 242,000 m/s was the correct velocity, however, I thought electrons would travel at c. How does one calculate this number?

Thanks in advance.

- #2

malawi_glenn

Science Advisor

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One can measure/calculate the mean momentum & kinetic energy of the atomic electron, then it is trival to obtain its velocity.

- #3

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mv^2=27 eV, so [tex]v/c=\sqrt{27/500,000}[/tex]

- #4

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Can you explain that equation, if you get a chance? Why does mv^2=27ev

Thanks.

Thanks.

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