5.2.2a Alpha, beta and gamma emission

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Question 105

Radioactive decay is described as a spontaneous process. Explain the meaning of the word spontaneous in this context.

[1]

The table below compares properties of three types of radioactive emission. Complete the table by matching the correct properties to each emission. Choose the charges from: $+ 2$ , $- 1$ , $0$ Choose the ranges in air from: "a few centimetres", "a few metres", "very long range"

Emission	Charge (in terms of $e$ )	Typical range in air
alpha ( $α\alpha$ )	[ (i) ]	[ (ii) ]
beta-minus ( $β−\beta^-$ )	[ (iii) ]	[ (iv) ]
gamma ( $γ\gamma$ )	[ (v) ]	[ (vi) ]

[3]

A helium-3 nucleus is represented as $23He{}_{2}^{3}\text{He}$ . State the number of protons and neutrons in a helium-3 nucleus, and describe how its composition differs from that of a standard $α\alpha$ -particle ( $24He{}_{2}^{4}\text{He}$ ).

[3]

Radioactive decay is described as a spontaneous process. Explain the meaning of the word spontaneous in this context.

[1]

Emission	Charge (in terms of $e$ )	Typical range in air
alpha ( $α\alpha$ )	[ (i) ]	[ (ii) ]
beta-minus ( $β−\beta^-$ )	[ (iii) ]	[ (iv) ]
gamma ( $γ\gamma$ )	[ (v) ]	[ (vi) ]

[3]

5.2.2a Alpha, beta and gamma emission

Question 105

Markscheme

5.2.2a Alpha, beta and gamma emission

Question 105

Markscheme

5.2.2a Alpha, beta and gamma emission

Question 105

5.2.2a Alpha, beta and gamma emission Questions

5.2.2a Alpha, beta and gamma emission

Question 105

5.2.2a Alpha, beta and gamma emission Questions