Chapter 3: Elements, Atoms, and Ions
The search for the atom began a couple millenia ago. Chapter 3 chronicles a portion of that story from ancient times up to our understanding of a nuclear model of the atom. The chapter discusses the work of Mendeleev and others in developing a periodic table. An emphasis is placed on understanding how the elements can be understood in terms of their subatomic particles. Chapter 3 ends with a discussion of ions and the use of the periodic table in predicting ion charge.
Lesson 1: In Search of the Atom
Lesson 2: The Periodic Table Revisited
Lesson 3: Ions