If an atom emits a photon, that photon must have a wavelength __________.
A) that corresponds to the energy difference between two orbitals
B) shorter than the absorbed photon that caused the emission
C) as long as the distance between two orbitals
D) that corresponds to twice the energy difference between two orbitals
E) that corresponds to the lowest energy level of that atom

Question

Quizplus · Accepted Answer

When an atom emits a photon, the energy of the photon corresponds to the energy difference between two orbitals, which determines its wavelength.

If an Atom Emits a Photon, That Photon Must Have