Light and atoms
Introduction/Discovery Question
Why do some kinds of atoms and molecules absorb light?
Procedure
Atoms have excited states that are represented in this model as energy levels. A photon with the right energy can kick an atom into one of these excited states. Once excited, the atom can release its energy by emitting a photon or by increasing its kinetic energy.
In the model, excited states are represented by a “halo” around an atom.
The number of atoms in each state are represented by tiny circles on the energy level diagram.
Prediction
If you looked at a substance consisting of a kind of atom that had only one excited state, what would you see?
Place answer here!
Collect Data
Take a snapshot showing red photons being emitted from excited states.
Analysis
Experiment with just one excited state but at different energies.
What happens when more excited states are allowed?
Place answer here!
Conclusion
How are atomic energy levels related to color?
Place answer here!
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