Gr4ai0llymarguero Gr4ai0llymarguero 12-12-2016 Physics contestada 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