?Note: Answers to all odd-numbered Problems, numbered in blue, can

Chapter 2, Problem 78

(choose chapter or problem)

Note: Answers to all odd-numbered Problems, numbered in blue, can be found in Appendix III. Exercises in the Problems by Topic section are paired, with each odd-numbered problem followed by a similar even-numbered problem. Exercises in the Cumulative Problems section are also paired but more loosely. Because of their nature, Challenge Problems and Conceptual Problems are unpaired.

An X-ray photon of wavelength 0.989 nm strikes a surface. The emitted electron has a kinetic energy of 969 eV. What is the binding energy of the electron in kj/mo? Hint: The kinetic energy of the electron is equal to the energy of the photon (hv) minus the binding energy of the electron \((\phi): \mathrm{KE}=h \nu-\phi\).

\(\left[1 \text { electron volt }(\mathrm{eV})=1.602 \times 10^{-19} \mathrm{~J}\right]\)

Text Transcription:

(phi): KE = h nu - phi

[1 electron volt (eV)=1.602 times 10^-19 j