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CH 10.1 Radioactivity

CH 10.1 Radioactivity

Author: deirdre carney
  • Describe the process of nuclear decay
  • Classify nuclear radiation as alpha particles, beta particles, or gamma rays
  • Balance nuclear equations
  • Identify sources of nuclear radiation, describe how radiation affects matter
  • Describe methods of detecting nuclear radiation

Nevada Science Standards

P.12.C.4 Students know characteristics, applications and impacts of radioactivity. E/S 

Next Generation Science Standards

HS-PS1-j  Develop representations of the changes in the composition of the nucleus of the atom and the energy released during he processes of fission, fusion, and radioactive decay.

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Marie Cure and Radiation

A brief introduction to nuclear radiation and the discoveries of Marie Curie.

Chapter 10.1 Radioactivity

Read Chapter 10.1 Radioactivity
Outline the reading in your Science Notebook & include major points and diagrams/tables.
You should focus on the following essential questions:
- What happens during nuclear decay?
- What are the three types of nuclear radiation? (describe each)
- How does nuclear radiation affect atoms?
- What devices can detect radiation?


Source: prentice Hall Physical Science - Concepts in Action

Video Clip: Radiation and Radioactive Decay

Mr. Andersen explains why radiation occurs and describes the major types of radiation. He also shows how alpha, beta, and gamma radiation affect the nucleus of a radioactive atom. Nuclear equations are also discussed.

Take notes in your Science Notebook.

Video Clip: Alpha Decay

Tyler Dewitt explains what alpha decay is, how atoms go from stable to unstable, and practice problems with examples of alpha decay.

Be sure to write down steps to help you balance alpha decay equations.

Video Clip: Beta Decay

Sometimes known as Beta minus decay or Beta emission, this process is related to Positron decay. An unstable atom takes a neutron and turns it into a proton, creating a high-energy electron known as a Beta particle. This makes the atom more stable. In this video, Tyler Dewitt demonstrates the basics of Beta decay, and nuclear equations with Beta Decay.

Be sure to take notes for balancing these types of nuclear equations in your Science Notebook.

Video Clip: Alpha, Beta, Gamma Radiation Problems

RADIATION & RADIOACTIVITY - Alpha, Beta, Gamma Radiation Problems - Nuclear Decay - This video gives an example of each type of nuclear radiation listed above. One example of each type of radiation is discussed.

Be sure to take notes in your Science Notebook.

Alpha Beta Gamma Oh My! Activity

Complete decay problems and graph. If you need help with the graphing, please see me.


Video Clip: Ionizing Radiation

Focus on how each of the particles, Alpha, Beta, and Gamma, can be blocked.

Practice Balancing Nuclear Equations

Online Practice

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Be sure to print the screen with all of your completed problems for credit.

Practice Balancing Nuclear Equations

Online Practice

Go to:

Be sure to print the screen with all of your completed problems for credit.