An electron in the n=2 energy level makes a transition to the n=7 energy level after...
An electron in the n=2 energy level makes a transition to the n=7 energy level after absorbing a 397 nm photon. What is the energy difference between these levels in electron volts (1 eV = 1.6 x 10-19 J)?
A. 5.00 eV
B. 4.74 eV
C. 3.97 eV
D. 3.13 eV
E. 2.35 eV
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An electron in the n=2 energy level makes a transition to the
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