Exam-style question
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How is the energy of a photon related to the transition of an electron between energy levels?.
- A.It is equal to the mass of the electron.
- B.It is equal to the difference in energy levels.
- C.It is inversely proportional to the wavelength.
- D.It is equal to the work function of the atom.
Model answer
What a good answer should say
- It is equal to the difference in energy levels.
Explanation
Why this works
The energy of a photon emitted during an electron transition is equal to the difference in energy between the two energy levels involved in the transition.
Common mistake
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