electron-volt = (a) If an electron passes through an electrical potential difference of 1 V, it has an energy of 1 1 eV. Calculate the potential difference it must pass through in order to have a wavelength of 0.225 nm. (b) The spacing between atoms on the surface of a crystal is on the order of 1 Å. In order for diffraction to occur, the wavelength of the scatterer must roughly match the spacing of the diffracting elements. Calculate the velocity (in m s') and kinetic energy (in eV) that an electron must have to exhibit diffraction from the surface of a crystal.
electron-volt = (a) If an electron passes through an electrical potential difference of 1 V, it has an energy of 1 1 eV. Calculate the potential difference it must pass through in order to have a wavelength of 0.225 nm. (b) The spacing between atoms on the surface of a crystal is on the order of 1 Å. In order for diffraction to occur, the wavelength of the scatterer must roughly match the spacing of the diffracting elements. Calculate the velocity (in m s') and kinetic energy (in eV) that an electron must have to exhibit diffraction from the surface of a crystal.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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(a) If an electron passes through an electrical potential difference of 1 V, it has an energy of 1
electron-volt = 1 eV. Calculate the potential difference it must pass through in order to have a
wavelength of 0.225 nm. (b) The spacing between atoms on the surface of a crystal is on the
order of 1 Å. In order for diffraction to occur, the wavelength of the scatterer must roughly match
the spacing of the diffracting elements. Calculate the velocity (in m s') and kinetic energy (in
eV) that an electron must have to exhibit diffraction from the surface of a crystal.
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