Lesson: Radioactive Decay Chains Physics • 9th Grade

In this lesson, we will learn how to determine the products of radioactive decay chains and identify the type of radioactive decay from the decay products.

Sample Question Videos

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Lesson Worksheet

Q1:

Astatine-218 undergoes beta decay to radon-218. Radon-218 undergoes alpha decay to polonium-214. This is shown in the following nuclear equation:

What is the value of in the equation?

Q2:

Which type of nuclear radiation has no mass?

Q3:

The diagram shows a beryllium-11 nucleus undergoing two-step radioactive decay. Red circles represent protons, gray circles represent neutrons, and blue circles represent electrons. What isotope is produced through this reaction?