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← ScienceWhich outcome occurs when a doped semiconductor crystal's Fermi energy level changes?
A)Electron occupation of atomic orbitals alters✓
B)Phonon scattering rate becomes constant
C)Dielectric constant reaches maximum stability
D)Thermal conductivity hits zero resistance
💡 Explanation
The electron occupation of atomic orbitals alters because changing Fermi energy changes the probability of electrons occupying specific energy levels near those orbitals through the Fermi-Dirac distribution. Therefore, the electron occupation changes, rather than purely material properties affected by vibrations or polarity.
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