Ch 12: Nuclear Chemistry - ORELA Middle Grades General Science

About This Chapter

Use these lessons and study aids to refresh your knowledge of the fundamentals of nuclear chemistry. The material in this chapter can help you prepare for these kinds of questions on the ORELA Middle Grades General Science exam.

ORELA Middle Grades General Science: Nuclear Chemistry - Chapter Summary

The lessons in this chapter help you get ready for the ORELA Middle Grades General Science exam by going over information on nuclear chemistry including early atomic theory, nuclear reactions and how stars are formed. These short video lessons cover the following topics that may come up on the exam:

  • Pioneers of atomic theory
  • Definition of nuclear energy
  • Uses for radioactive materials
  • Methods of disposing of nuclear byproducts safely
  • Radioactive decay
  • The role of nuclear fusion in star formation
  • Ways to categorize stars

Our expert instructors will guide you through this material on nuclear chemistry as you study for the ORELA exam. You can use the timeline feature to locate information that you wish to review without having to watch the entire lesson again.

10 Lessons in Chapter 12: Nuclear Chemistry - ORELA Middle Grades General Science
Test your knowledge with a 30-question chapter practice test
Early Atomic Theory: Dalton, Thomson, Rutherford and Millikan

1. 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.

What is Nuclear Energy? - Definition & Examples

2. What is Nuclear Energy? - Definition & Examples

You've probably heard of nuclear energy. But what is it? And what is the difference between fusion and fission? This lesson will answer your questions about this exciting form of energy that involves atoms and their nuclei.

What Are Radioactive Materials? - Definition, Examples, Uses & Benefits

3. What Are Radioactive Materials? - Definition, Examples, Uses & Benefits

Radioactive materials are all around us. Some are beneficial, while others may cause us harm. In this lesson you'll learn what radioactive materials are and explore where they come from and how they can be useful to us.

Nuclear Reaction: Definition & Examples

4. Nuclear Reaction: Definition & Examples

Learn the differences between a nuclear reaction and a chemical reaction. Also learn how the nuclear reaction involves subatomic particles including protons and neutrons. Discover the different types of nuclear reactions including fission and fusion and also how a nuclear power plant works to produce energy.

Risks of Nuclear Power Plants and Radioactive Waste: Safety and Health Concerns

5. Risks of Nuclear Power Plants and Radioactive Waste: Safety and Health Concerns

Nuclear power can generate electricity without greenhouse gas emissions. However, there are concerns about its safety. Learn about the safety and health concerns associated with the threat of nuclear meltdowns, as well as the challenges involved in storing radioactive waste.

Types of Radioactive Decay and Their Effect on the Nucleus

6. Types of Radioactive Decay and Their Effect on the Nucleus

What is meant by the term 'radioactive'? In this lesson we will break down the three main types of nuclear decay particles and discuss their composition, their effect on the nucleus, and their applications.

Half-life: Calculating Radioactive Decay and Interpreting Decay Graphs

7. Half-life: Calculating Radioactive Decay and Interpreting Decay Graphs

What causes a radioactive particle to decay? We'll never really know, but our best guess lies in probability. In this lesson, we are going to focus on the half-life, a way of measuring the probability that a particle will react.

Fusion, Fission, Carbon Dating, Tracers & Imaging: Applications of Nuclear Chemistry

8. Fusion, Fission, Carbon Dating, Tracers & Imaging: Applications of Nuclear Chemistry

What can the sun do that we can't? How do carbon atoms 'date'? Are radioactive isotopes helpful in the medical field? The answers to these questions can be found in this lesson on the applications of nuclear chemistry.

Nuclear Fusion & Star Formation

9. Nuclear Fusion & Star Formation

This lesson will explain how the processes of stellar formation leads to nuclear fusion. We'll also define nuclear fusion and hydrostatic equilibrium, and find out why temperature is so important to all of this.

Types of Stars by Size, Color and Life Cycle

10. Types of Stars by Size, Color and Life Cycle

Learn to identify the different sizes and colors of stars and how they relate to the star life cycle. In this lesson, we'll talk about spectral classification, how many stars there are of each type and the approximate color of the different classes of stars.

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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