Ch 21: CEOE Physical Science: Atomic Theory & Structure

About This Chapter

Review important material on atomic structure and theory by checking out this chapter's engaging video lessons. Use this information to help you answer questions you will encounter on the CEOE Physical Science exam.

CEOE Physical Science: Atomic Theory & Structure - Chapter Summary

These video lessons will reinforce what you've learned about atomic theory and structure in preparation for the CEOE Physical Science exam. This chapter will help you to correctly answer any questions that deal with the following:

  • The atom, atomic mass, isotopes and atomic number
  • Theories of Dalton, Thomson and others
  • Principles and rules governing atomic structure
  • The law of conservation of mass
  • Quantum numbers, diamagnetism and paramagnetism
  • The de Broglie hypothesis
  • Covalent and ionic bonds
  • Molecular formulas
  • Atomic spectra and the Bohr model

Check your retention of the material and measure your progress using the lesson quizzes and chapter exam. Use the Timeline to quickly return to key points in any video lesson that you'd like to review again.

14 Lessons in Chapter 21: CEOE Physical Science: Atomic Theory & 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.

Early Atomic Theory: Dalton, Thomson, Rutherford and Millikan

3. 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.

Isotopes and Average Atomic Mass

4. 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

5. 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.

Atomic Structures: Pauli Exclusion Principle, Aufbau Principle & Hund's Rule

6. Atomic Structures: Pauli Exclusion Principle, Aufbau Principle & Hund's Rule

This lesson discusses the three main rules that govern how electrons fit in the atomic structure by filling the shells, subshells, and orbitals. We will also review the basics of quantum numbers before learning these principles.

The Law of Conservation of Mass: Definition, Equation & Examples

7. The Law of Conservation of Mass: Definition, Equation & Examples

Read about the law of conservation of mass, its role in chemistry, and its importance in the universe. Learn the equation, review examples, and test your knowledge of the material with a short quiz.

Diamagnetism & Paramagnetism: Definition & Explanation

8. Diamagnetism & Paramagnetism: Definition & Explanation

In this lesson, we learn more about electron configuration through the concepts of diamagnetism and paramagnetism. We will review electron structure in an atom, and define diamagnetism and paramagnetism.

Four Quantum Numbers: Principal, Angular Momentum, Magnetic & Spin

9. Four Quantum Numbers: Principal, Angular Momentum, Magnetic & Spin

Each electron inside of an atom has its own 'address' that consists of four quantum numbers that communicate a great deal of information about that electron. In this lesson, we will be defining each quantum number and explaining how to write a set of quantum numbers for a specific electron.

The de Broglie Hypothesis: Definition & Significance

10. The de Broglie Hypothesis: Definition & Significance

The de Broglie hypothesis states that particles of matter can behave as both waves and particles, just like light. In this lesson, we'll learn the basics of the de Broglie hypothesis and how it related to other theories released at the same time.

Ionic Bonds: Definitions and Examples

11. 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.

Polar and Nonpolar Covalent Bonds: Definitions and Examples

12. Polar and Nonpolar Covalent Bonds: Definitions and Examples

Did you know that some types of chemical bonds behave similarly to the way that children play with toys? In this lesson, you will learn about two types of bonds called polar and nonpolar covalent bonds.

Using Atoms and Ions to Determine Molecular Formulas

13. 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.

The Bohr Model and Atomic Spectra

14. The Bohr Model and Atomic Spectra

Do you ever wonder where light comes from or how it is produced? In this lesson, we are going to use our knowledge of the electron configurations and quantum numbers to see what goes on during the creation of light.

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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