5.2.1 Background radiation and measuring count rate

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Question 32

Explain what is meant by background radiation.

[1]

Suggest how background radiation can be detected.

[1]

Radium-226 ( $88226Ra^{226}_{88}\text{Ra}$ ) is a radioactive element. Complete the table below to show the number of each type of particle in a neutral atom of $88226Ra^{226}_{88}\text{Ra}$ .

Type of particle	Number
electron
neutron
proton

[3]

Alpha particles are emitted when radium-226 decays.

Select the correct symbol for an alpha particle from the list: $α\alpha$ , $β\beta$ , $γ\gamma$ .

[1]

From what part of the radium-226 atom is the alpha particle emitted?

[1]

Complete the table below to show the composition of an alpha particle.

Type of particle	Number
electron
neutron
proton

[2]

Explain what is meant by background radiation.

[1]

Suggest how background radiation can be detected.

[1]

Radium-226 ( $88226Ra^{226}_{88}\text{Ra}$ ) is a radioactive element. Complete the table below to show the number of each type of particle in a neutral atom of $88226Ra^{226}_{88}\text{Ra}$ .

Type of particle	Number
electron
neutron
proton

Alpha particles are emitted when radium-226 decays.

Select the correct symbol for an alpha particle from the list: $α\alpha$ , $β\beta$ , $γ\gamma$ .

[1]

From what part of the radium-226 atom is the alpha particle emitted?

[1]

Complete the table below to show the composition of an alpha particle.

Type of particle	Number
electron
neutron
proton

[2]

5.2.1 Background radiation and measuring count rate

Question 32

Markscheme

5.2.1 Background radiation and measuring count rate

Question 32

Markscheme

5.2.1 Background radiation and measuring count rate

Question 32

5.2.1 Background radiation and measuring count rate Questions

5.2.1 Background radiation and measuring count rate

Question 32

5.2.1 Background radiation and measuring count rate Questions