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← ScienceWhich outcome occurs when mismatched electron shells overlap weakly during a chemical reaction?
A)Increased quantum tunneling probability✓
B)Auger electron emission decreases
C)Intersystem crossing probability increases
D)Franck-Condon factor approaches zero
💡 Explanation
Increased quantum tunneling probability occurs because the overlap defines the potential barrier width; the WKB approximation predicts greater tunneling with thinner barriers, therefore electron penetration increases rather than showing reduced electron transit
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