APFIVE Atomic Absorption Spectra
A continuous spectrum of light passes through a cool gas. The resulting spectrum shows dark lines. Which statement best explains this phenomenon?
A
The gas emits photons that destructively interfere with the continuous spectrum
B
The gas scatters all wavelengths equally, creating uniform dimming
C
Electrons in the gas reflect specific wavelengths back toward the source
D
Atoms in the gas absorb photons with specific energies corresponding to their energy level differences
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