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5.2.3a Radioactive decay

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Question 12
a.

An α\alphaα-particle may be represented by the symbol 24He{}_{2}^{4}\text{He}24​He.

What does the He\text{He}He indicate about an α\alphaα-particle?

[1]
b.

What does the 444 indicate about an α\alphaα-particle?

[1]
c.

What does the 222 indicate about an α\alphaα-particle?

[1]
d.

The nuclide 92238U{}_{92}^{238}\text{U}92238​U decays by emitting an α\alphaα-particle.

Complete the nuclear equation for this decay by finding the missing numbers AAA and ZZZ:

92238U⟶ZATh+24He {}_{92}^{238}\text{U} \longrightarrow {}_{Z}^{A}\text{Th} + {}_{2}^{4}\text{He} 92238​U⟶ZA​Th+24​He
[2]
Markscheme

5.2.3a Radioactive decay Questions

  1. IGCSE
  2. /Physics
  3. /5.2.3a Radioactive decay

120 exam-style questions on CIE IGCSE Physics 5.2.3a Radioactive decay. Each one has a worked solution and a mark scheme showing where the marks go.

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