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← ScienceWhich outcome occurs when a molecule absorbs ultraviolet photons?
A)Electrons transition to higher energy orbitals✓
B)Molecular bonds weaken, decreasing stability
C)Vibrational modes decrease; material stiffens
D)Nuclear spin flips, creating MRI signal
💡 Explanation
When a molecule absorbs UV photons, the molecule undergoes photoexcitation. This process causes electrons to jump to higher energy orbitals because the energy of the photon matches the energy gap; therefore, orbitals hybridize, rather than leading to other outcomes.
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