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General Chemistry

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An electron microscope employs a beam of electrons to obtain an image of an object. What energy must be imparted to each electron of the beam to obtain a wavelength of 15.2 pm? Obtain the energy in electron volts (eV) (1 eV = 1.602 10-19 J).

  • General Chemistry - ,

    E = hc/wavelength
    Plug in the wavelength, calculate E (in Joules) and convert to eV.

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