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Which consequence results when overlapping atomic orbitals form a molecular orbital between two silicon atoms in a semiconductor crystal at finite temperature?

A)Increased probability of electron delocalization
B)Suppressed phonon scattering rate throughout lattice
C)Decreased energy band gap magnitude
D)Enhanced effective mass of holes

💡 Explanation

The formation of molecular orbitals causes increased electron delocalization because electrons can occupy regions defined by both atomic nuclei rather than a single atom due to quantum tunneling. Therefore, electron delocalization rises, rather than other effects like scattering changes applicable under varying constraints.

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