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
- Part a: Mendeleev and the Periodic Law
- Part b: Today's Periodic Table
- Part c: Isotopes and Isotope Notation
Lesson 3: Ions
- Part a: The Happy Family
- Part b: Metals, Nonmetals, and Ions
- Part c: Transition Metal Ions
- Part d: Polyatomic Ions