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5.2.3a Radioactive decay

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Question 81
a.

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

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

[1]
b.

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

[1]
c.

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

[1]
d.

The nuclide 92238U\phantom{}_{92}^{238}\text{U}92238​U decays by emitting an α\alphaα-particle to form Thorium (Th\text{Th}Th).

Complete the nuclear equation for this decay by determining the values of AAA and ZZZ:

92238U→ZATh+24He \phantom{}_{92}^{238}\text{U} \rightarrow \phantom{}_{Z}^{A}\text{Th} + \phantom{}_{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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