Activities

Spectroscopy

Explore why excited atoms emit different wavelengths of radiation and learn how to identify atoms based on their unique atomic spectra.

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Download Size: 5 MB

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Your data will not be saved. To save data, run this activity as a registered user. You can register at the project portal: Register at the Portal »

Requirements

The Java Runtime Environment version 5 (sometimes referred to as 1.5) or later with Java Webstart is required to run any of the activities. You can download it at: java.com.

What happens when an excited atom emits a photon? What can we deduce about that atom based on the photons it can emit? A series of interactive models allows you to examine how the energy levels the electrons of an atom occupy affect the types of photons that can be emitted. Use a digital spectrometer to record which wavelengths certain atoms will emit, and then use this knowledge to compare and identify types of atoms.

Students will be abe to:

  • Determine that the frequency of a photon is determined by the difference of energy levels between the states of an excited electron
  • Add energy and excite atoms
  • Analyze photon emissions and identify atoms that emit them
  • Determine that atoms can absorb photons of specific frequencies
  • Explore emissions spectra, and identify atoms by their spectrum
Download & Launch

Download Size: 5 MB

WARNING: Your data will not be saved. To save data, run this activity as a registered user. You can register at the project portal. Please view the requirements below before launching this activity.

Requirements

The Java Runtime Environment version 5 (sometimes referred to as 1.5) or later with Java Webstart is required to run any of the activities. You can download it at: java.com.

The download for this activity will require 5 MB of disk space.

Science of Atoms and MoleculesThis activity is a part of the Concord Consortium's Science of Atoms and Molecules project.

Grade Level
High School, Higher Education
Subject
Physics
Focus Area
Modeling and Simulation