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2 cards from this section. Quick, good the night before a test.
What is an absorption spectrum?
Think about what happens to light when it meets an atom.
Which elements exhibit Fraunhofer lines?
Think about the sun and what elements can be found there.
What occurs when an atom absorbs a photon?
Think about what it means for an electron to be 'excited'.
True or False: The dark lines in an absorption spectrum indicate the energy that was emitted.
Consider whether energy is absorbed or released during electron transitions.
Consider a hypothetical element that absorbs wavelengths of 450 nm, 500 nm, and 600 nm. If you were to see its absorption spectrum, which colors would be darkest?
Think about what happens to the light when it encounters the element.
Explain the importance of using absorption spectra in determining the composition of distant stars.
Consider how distant observations rely on light gathered from those stars.
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