Decay equations

This lesson explores the changes that take place within the nucleus of an atom during radioactive decay and we will learn how to write radioactive decay equations using atomic notation.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is gamma radiation?

1/7

Q2.What is alpha radiation?

2/7

Q3.What is beta radiation?

3/7

Q4.Which is the most ionising radiation?

4/7

Q5.Which is the least pentrating radiation?

5/7

Q6.Which two types of radiation can pass through skin but are absorbed by a thin sheet of aluminium?

Select two (2) boxes

6/7

Q7.Which radiation is the most dangerous at long distances?

7/7

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is gamma radiation?

1/7

Q2.What is alpha radiation?

2/7

Q3.What is beta radiation?

3/7

Q4.Which is the most ionising radiation?

4/7

Q5.Which is the least pentrating radiation?

5/7

Q6.Which two types of radiation can pass through skin but are absorbed by a thin sheet of aluminium?

Select two (2) boxes

6/7

Q7.Which radiation is the most dangerous at long distances?

7/7

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Decay Equations

Complete the quiz to see how much you have remembered.

Q1.What is alpha radiation?

1/7

Q2.What is beta radiation?

2/7

Q3.How do we represent alpha radiation?

3/7

Q4.How do we represent beta radiation?

4/7

Q5.Uranium-238 decays, releasing alpha radiation. What will be the mass of the new atom formed? Uranium-238 has 92 protons and 146 neutrons.

5/7

Q6.Polonium-209 decays to form bismuth-209. What type of radiation has been released?

6/7

Q7.Polonium-209 decays to form Lead-205. What type of radiation has been released?

7/7

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Decay Equations

Complete the quiz to see how much you have remembered.

Q1.What is alpha radiation?

1/7

Q2.What is beta radiation?

2/7

Q3.How do we represent alpha radiation?

3/7

Q4.How do we represent beta radiation?

4/7

Q5.Uranium-238 decays, releasing alpha radiation. What will be the mass of the new atom formed? Uranium-238 has 92 protons and 146 neutrons.

5/7

Q6.Polonium-209 decays to form bismuth-209. What type of radiation has been released?

6/7

Q7.Polonium-209 decays to form Lead-205. What type of radiation has been released?

7/7

Lesson summary: Decay equations

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