Lesson 15 – Ionic bonding
In this lesson, students learn that atoms can ionize and attract one another to form familiar solid materials such as salt (sodium chloride), rust (iron-III oxide), and white paint pigment (titanium oxide). Students use the periodic table to rationalize why certain atoms assume certain charges. Atomic charge dictates how ions combine to form salts, and students are given an introduction to the stoichiometry of salts. Students can now more effectively tackle notorious high school chemistry topics like balancing equations, armed with a commanding knowledge of ionic bonding.