The figure shows different possible transitions of electrons as they move from higher energy states to lower energy states. Which transition will produce the spectrum line with the lowest wavelength in this element’s atomic spectrum? The image is of a portion of a Bohr model and shows four energy levels labeled as E 1, E 2, E 3, and E 4. Between the energy levels are four labeled arrows. Arrow A points from E 3 down to E 4. Arrow B points from E 1 down to E 3. Arrow C points from E 1 down to E 2. Arrow D points from E 1 down to E 4.
A. A
B. B
C. C
D. D