A hydrogen atom makes a downward transition from the n = 20 state to the n = 5 state. Find the wavelength of the emitted photon
The lowest level energy state of hydrogen is -13.6 eV.
(h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J, c = 3.00 × 108 m/s)
A) 2.43 ?m
B) 1.46 ?m
C) 1.94 ?m
D) 2.92 ?m
A
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