Lesson 9:

Understanding the

Chemical Nature of Matter


In the last few lessons, you learned a lot about matter and chemical reactions. You were also introduced to the periodic table of elements. In this lesson, you will learn about the states of matter, the parts of an atom, and more about the periodic table.


 

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In this lesson, you will:

  • learn about the chemical nature of matter
  • learn about the particle model of matter
  • learn about the parts of an atom
  • learn more about the periodic table of elements



Key terms for this lesson:

  • atom
  • atomic mass
  • nucleus
  • protons
  • neutrons
  • electrons
  • particle model of matter
  • properties
  • metalloid
  • periodic table of elements
  • theory