Ch 8: Understanding Elements & Periodicity

Understanding Elements & Periodicity - Chapter Summary

In this chapter, you'll learn how to read the periodic table like a map after you understand how it is organized. The concept of atomic mass will be introduced, and you will learn how to calculate it. You'll also find out about valence electrons and how to identify the most important information about electrons on the periodic table.

Next, you will learn about more trends on the periodic table--atomic size, ionization and electronegativity, as well as the diagonal relationship, metallic character and boiling point. The importance of balanced chemical equations will be discussed, and you'll learn how to write your own balanced equations. The chapter ends with a comparison between the major metals and elements on the periodic table for your review. Once you have completed this chapter, you'll be able to:

• Understand how the elements are organized on the periodic table
• Identify the atomic characteristic that plays a major role in the chemical properties of elements
• Utilize the information on the periodic table quickly
• Predict the relative size of an atom based on where its located on the periodic table
• Understand what happens to an atom under radiation
• Balance chemical equations
• Identify trends on the periodic table

Use our short, engaging video lessons and quizzes to refresh your knowledge of a topic or learn something new. Each video is accompanied by a quiz so you can test your knowledge of the material. If you need to watch just one portion of a video lesson over again, use the video tabs feature in the Timeline to jump to the section you'd like to review.