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Ch 6: Atoms & Atomic Structure

About This Chapter

This overview of atoms and atomic structure covers key topics such as atomic number and ionic bonds. These helpful video lessons are a great resource to use when preparing for a class discussion or a test.

Atoms & Atomic Structure - Chapter Summary

The lessons in this chapter provide an overview of atoms and atomic structure. You'll find an informative discussion of early atomic theories, the Bohr model, and many other topics. After completing the chapter, you should be prepared to:

  • Define atom, atomic number, and mass number
  • Discuss isotopes and average atomic mass
  • Explore electron configurations in atomic energy levels
  • Provide examples of ionic bonds
  • Demonstrate use of atoms and ions to determine molecular formulas
  • Examine early atomic theories of Dalton, Thomson, Rutherford, and Millikan
  • Explain the atomic theory of James Chadwick
  • Describe the Bohr model

These video lessons are brief and engaging, which helps you to easily understand the information presented. Our expert instructors are effective and use plenty of examples. The video timelines allow you to navigate the learning process by going directly to the topics of your choice. Each lesson is accompanied by a brief multiple-choice quiz to test your knowledge. Full video transcripts are also available.

9 Lessons in Chapter 6: Atoms & Atomic Structure
Test your knowledge with a 30-question chapter practice test
The Atom

1. The Atom

Tune into this lesson to find out what matters about matter. What exactly is an atom? And, how do the atoms that make up the elements in the periodic table differ from one another?

Atomic Number and Mass Number

2. Atomic Number and Mass Number

Atoms are the basic building blocks of everything around you. In order to really understand how atoms combine to form molecules, it's necessary to be familiar with their structure. In this lesson, we'll dissect atoms so we can see just what really goes into those little building blocks of matter.

Isotopes and Average Atomic Mass

3. Isotopes and Average Atomic Mass

When you drink a glass of water, you are actually drinking a combination of heavy water and light water. What's the difference? Is it harmful? This video will explain the difference between the two types of water and go into detail on the significance of the different isotopes of elements.

Electron Configurations in Atomic Energy Levels

4. Electron Configurations in Atomic Energy Levels

This lesson will explain what the electrons are doing inside the atom. Tune in to find out how we specify where they are located and how this location description will help us predict an element's properties.

Ionic Bonds: Definitions and Examples

5. Ionic Bonds: Definitions and Examples

Did you know that when atoms stick together to form molecules, they gain and lose electrons, making them negatively or positively charged? In this lesson, you will learn how cations and anions form one type of chemical bond called an ionic bond.

Using Atoms and Ions to Determine Molecular Formulas

6. Using Atoms and Ions to Determine Molecular Formulas

In this lesson, you will learn how atoms and ions determine molecular formulas. You will understand how molecular formulas tell information about the type and quantity of atoms involved in a molecule. Lastly, we will discuss how to write a molecular formula for an ionic compound.

Early Atomic Theory: Dalton, Thomson, Rutherford and Millikan

7. Early Atomic Theory: Dalton, Thomson, Rutherford and Millikan

Imagine firing a bullet at a piece of tissue paper and having it bounce back at you! You would probably be just as surprised as Rutherford when he discovered the nucleus. In this lesson, we are going to travel back in time and discuss some of the major discoveries in the history of the atom.

James Chadwick: Biography & Atomic Theory

8. James Chadwick: Biography & Atomic Theory

Learn about English physicist James Chadwick, who discovered the neutron and whose research helped launch the atomic weapons race and the Manhattan Project.

Bohr Model: Definition & Equation

9. Bohr Model: Definition & Equation

Explore the problem of the Saturnian atomic model, how the Bohr equation addresses this problem using the hydrogen atom, and what current theory has taken from the Bohr model to refine and improve on it.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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