Consider the following portion of the energy-level diagram forhydrogen:
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| | | | n=4 | –0.1361 × 10–18 J | | n=3 | –0.2420 × 10–18 J | | n=2 | –0.5445 × 10–18 J | | n=1 | –2.178 × 10–18 J |
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In the hydrogen spectrum, what is the wavelength of lightassociated with the n = 2 to n = 1 electrontransition? Please explain. The answer is: 1.22 × 10–7m.
