IB Physics HL E 1 3 Atomic Energy Levels Questions
Use HL atomic spectra to explain discrete energy levels, photon emission and absorption, and why spectral evidence changed the atomic model.
- Syllabus
- First assessment 2025
- Course
- Physics HL
- Level
- HL
Exam points
- Analyse emission and absorption spectra as evidence for quantized atomic energy levels.
- Explain spectral patterns using electron transitions and the electron-in-a-box model.
- Distinguish excitation and ionisation in atomic energy-level systems.
IB Physics HL E 1 3 Atomic Energy Levels Questions question 1
The diagram represents the three principal spectral lines in the visible region of the spectrum of atomic hydrogen.
The electron in the hydrogen atom can only occupy certain allowed energy levels.
Outline how the spectral lines provide evidence for the existence of these energy levels.
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