SOLUTION: Can someone please help me with this homework question? I am stuck and do not know how to approach this question.
An X-ray photon of wavelength .978 nm strikes a surface. The em
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An X-ray photon of wavelength .978 nm strikes a surface. The em
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Question 1021549: Can someone please help me with this homework question? I am stuck and do not know how to approach this question.
An X-ray photon of wavelength .978 nm strikes a surface. The emitted electron has a kinetic energy of 967eV. What is the binding energy of the electron in kJ/mol?
[KE=1/2 mv^2; 1 electron volt (eV)= 1.602 x 10^-19 J] Answer by ikleyn(52834) (Show Source):
You can put this solution on YOUR website! .
Can someone please help me with this homework question? I am stuck and do not know how to approach this question.
An X-ray photon of wavelength .978 nm strikes a surface. The emitted electron has a kinetic energy of 967eV. What is the binding energy of the electron in kJ/mol?
[KE=1/2 mv^2; 1 electron volt (eV)= 1.602 x 10^-19 J]
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The most general thoughts.
It is a photoelectric effect. See, for example, this Wikipedia article.
The energy of the photon is = ,
where h is the Plank's constant, is the photon frequency,
= ,
c is the speed of light, = wavelength.
The binding energy of the electron is the difference - kinetic energy of the electron.
This is the scheme.
To implement it accurately, you need pay attention to the dimensions of yours quantities.
