Question
Asked Jan 24, 2020
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A beam of electrons (m = 9.11 × 10-31 kg/electron) has an average speed of 2.0 × 108 m/s. What is the wavelength of electrons having this average speed in picometers?

 

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Expert Answer

Step 1

The de Broglie wavelength is expressed as:

Chemistry homework question answer, step 1, image 1
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Step 2

Given,

Mass of an electron, m = 9.11 × 10-31 kg

Average speed of electrons, v = 2.0 ×...

Chemistry homework question answer, step 2, image 1
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