5.2.3a Radioactive decay

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Question 2

Three types of radioactive decay are by the emission of: (1) $α\alpha$ -radiation, (2) $β\beta$ -radiation, (3) $γ\gamma$ -radiation.

State which of the three types of radiation has the greatest ionizing effect.

[1]

A nucleus of radium-226 decays to become a nucleus of radon-222 by the emission of one particle. The equation below describes the change. The symbol $ZAX{}^{A}_{Z}\text{X}$ represents the particle emitted:

{}^{226}_{88}\text{Ra} \rightarrow {}^{222}_{86}\text{Rn} + {}^{A}_{Z}\text{X}

State the name given to each of the numbers $A$ and $Z$ . $A$ is the ________ number. $Z$ is the ________ number.

[2]

Determine the values of $A$ and $Z$ . $A =$ ________, $Z =$ ________.

[2]

State the name of the particle emitted.

[1]

Three types of radioactive decay are by the emission of: (1) $α\alpha$ -radiation, (2) $β\beta$ -radiation, (3) $γ\gamma$ -radiation.

State which of the three types of radiation has the greatest ionizing effect.

[1]

{}^{226}_{88}\text{Ra} \rightarrow {}^{222}_{86}\text{Rn} + {}^{A}_{Z}\text{X}

State the name given to each of the numbers $A$ and $Z$ . $A$ is the ________ number. $Z$ is the ________ number.

Determine the values of $A$ and $Z$ . $A =$ ________, $Z =$ ________.

[2]

State the name of the particle emitted.

[1]

5.2.3a Radioactive decay

Question 2

Markscheme

5.2.3a Radioactive decay

Question 2

Markscheme

5.2.3a Radioactive decay

Question 2

5.2.3a Radioactive decay Questions

5.2.3a Radioactive decay

Question 2

5.2.3a Radioactive decay Questions