Question: The gap between valence and conduction bands in silicon is 1.12 eV. A nickel nucleus in an excited state emits a gamma-ray photon with wavelength 9.31 × 10-4 nm.
Question 1: How many electrons can be excited from the top of the valence band to the bottom of the conduction band by the absorption of this gamma ray?
Please show the work for the calculation so I can understand what I'm doing. Thank you!