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Lesson 3 - Atoms and Isotopes

You’ve probably heard people refer to nuclear energy as “atomic energy.”  Why?  Nuclear energy is the energy that is stored in the bonds of atoms, inside the nucleus. Nuclear power plants are designed to capture this energy as heat and convert it to electricity. This lesson looks closely at what atoms are and how atoms store energy.

This lesson covers the following topics:

  • Matter
    • Molecules
    • Elements
    • Chemical reaction
    • Periodic table
  • The Atom
    • Parts of an atom
    • Isotopes
    • Unstable isotopes
  • Scientists and discoveries