Question

The circles in the diagrams below represent energy levels in an atom, and the arrows show electron (blue dot) transitions from one energy level to another. (The spacing between circles represents differences in energy: A larger spacing means a greater difference in energy.) Assuming that the transitions occur as photons are emitted, rank the atoms based on the photon energy, from highest to lowest.

Answer 1

Highest

Arrow = from outer edge to center

Second Highest

Arrow = second closest ring to the outer edge to center

Third Highest

Arrow = middle circle to center

Lowest

Arrow = outer edge to middle circle