Which energy-level change shown in the diagram below emits electromagnetic radiation with the longest wavelength?
a) an electron moving from 4 to 5
b) an electron moving from 5 to 2
c) an electron moving from 6 to 1
d) an electron moving from 2 to 1
ANSWERS
2020-04-24 06:20:05
D. Emission occurs when electrons move from a higher to a lower energy level and the energy of the emitted particle is inversely proportional to the wavelength. Thus, a high wave length means it was a small energy transition.
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