Ch 9: Subatomic Particles in the Nucleus

About This Chapter

Increase your knowledge of the subatomic particles that can be found in the nucleus of an atom. These lessons and quizzes can be used to help you get the best score you can on an upcoming test.

Subatomic Particles in the Nucleus - Chapter Summary

In this chapter, our instructors dissect the structure of the atom and then explain radioactive decay using the concepts of parent nucleus, daughter nucleus and half-life. Both beta and alpha particles are introduced, along with their definitions, symbols and unique properties. The use of gamma radiation and its effects on the human body is also presented.

Your study continues with a lesson on the standard model of physics and the definition and uses of one of the fundamental particles in physics, the quark. The concepts of matter, antimatter and the topic of nuclear physics are introduced as well. Once you have completed this chapter, you should be able to:

  • Explain the structure of an atom
  • Describe the three types of radioactive decay
  • Define half-life as it relates to radioactive decay
  • Identify the properties of alpha and beta particles
  • Illustrate the effects of gamma radiation on the human body
  • Outline the standard model of physics and the particles that are part of it
  • Differentiate between matter and antimatter
  • Detail what nuclear physics is, including the concepts of fusion and fission

These mobile-friendly lessons and quizzes are accessible to you 24 hours a day, seven days a week. Use the chapter tests and lesson quizzes to gauge how well you know the topic or to identify sections that need further study. If you have any questions as you review the lessons, contact one of our instructors for help. Each of our videos, lessons and quizzes has been designed by a professional instructor to ensure your learning experience is interesting and fun.

10 Lessons in Chapter 9: Subatomic Particles in the Nucleus
Test your knowledge with a 30-question chapter practice test
Atomic Number and Mass Number

1. 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.

Radioactive Decay: Definition, Formula & Types

2. Radioactive Decay: Definition, Formula & Types

In this lesson, we'll discuss radioactive decay and learn the terms parent nucleus, daughter nucleus, and half-life. We'll also examine three types of radioactive decay.

Half-life: Calculating Radioactive Decay and Interpreting Decay Graphs

3. 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.

Alpha Particle: Definition, Symbol & Properties

4. Alpha Particle: Definition, Symbol & Properties

This lesson will explain what an alpha particle is and what symbols are used to represent it, and will also describe the properties of alpha particles. A short quiz will follow.

Beta Particle: Definition & Symbol

5. Beta Particle: Definition & Symbol

In this lesson, we will learn what a beta particle is and introduce the symbol that represents it. We will also learn about both the dangers and the uses of beta particles.

Gamma Radiation: Definition, Uses & Equation

6. Gamma Radiation: Definition, Uses & Equation

In this lesson you will learn what gamma radiation is. We will explore where it comes from, how we as humans make use of it, as well as its effect on the human body.

Standard Model of Particle Physics

7. Standard Model of Particle Physics

After completing this lesson, you will be able to explain what the standard model of physics is, name the particles that are part of the standard model, and some of the things it can't currently explain. A short quiz will follow.

What is a Quark? - Definition, Structure & Uses

8. What is a Quark? - Definition, Structure & Uses

Quarks are fundamental particles that are used by scientists to explain different types of phenomena. Learn more about them, subsequently testing your knowledge with a quiz.

Elementary Particles: Matter vs. Antimatter

9. Elementary Particles: Matter vs. Antimatter

All matter (and antimatter!) is made of just a few elementary particles. In this lesson, learn about these elementary particles and what happens when matter and antimatter meet!

Nuclear Physics: Nuclear Force & Building Energy

10. Nuclear Physics: Nuclear Force & Building Energy

After watching this video, you should be able to explain what nuclear physics is, including the concept of binding energy. You should also be able to explain how fusion and fission work. A short quiz will follow.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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