Gr4ai0llymarguero
Answered

Which energy-level change shown in the diagram below emits electromagnetic radiation with the longest wavelength?

Aan electron moving from 4 to 5
Ban electron moving from 5 to 2
Can electron moving from 6 to 1
Dan electron moving from 2 to 1

Verified Answer :

scme1702

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.