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  • Structure 1.3.2—The line emission spectrum of hydrogen provides evidence for the existence of electrons in discrete energy levels, which converge at higher energies.

Structure 1.3.2—The line emission spectrum of hydrogen provides evidence for the existence of electrons in discrete energy levels, which converge at higher energies.

Experiments

Here are experiments our science specialists have selected to support this IB* topic.

Spectrum of Atomic Hydrogen

Experiment #21 from Advanced Physics with Vernier — Beyond Mechanics

In this experiment, you will

  • Use a spectrometer to determine the wavelengths of the emission lines in the visible spectrum of excited hydrogen gas.
  • Determine the energies of the photons corresponding to each of these wavelengths.
  • Use a modified version of Balmer’s equation to relate the photons’ energies to specific transitions between energy levels.
  • Use your data and the values for the electron transitions to determine a value for Rydberg’s constant for hydrogen.

Educational Standard
International Baccalaureate (IB) 2025
Subject
Chemistry
Organizing concepts
Structure 1. Models of the particulate nature of matter
Subtopics
Structure 1.3—Electron configurations
Level
Standard level and higher level
See all Chemistry topics

* The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.

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