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5.2.3a Radioactive decay

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Question 79
a.

The symbol for an α\alphaα-particle is either 24α{}^{4}_{2}\alpha24​α or 24He{}^{4}_{2}\text{He}24​He.

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

[1]
b.

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

[1]
c.

The symbol for a β\betaβ-particle is either −10β{}^{0}_{-1}\beta−10​β or −10e{}^{0}_{-1}\text{e}−10​e.

What does the 000 indicate about a β\betaβ-particle?

[1]
d.

What does the −1-1−1 indicate about a β\betaβ-particle?

[1]
e.

The list below gives, in nuclide notation, the symbols of five radioactive nuclides.

81208Tl82208Pb83212Bi84212Po85216At {}^{208}_{81}\text{Tl} \qquad {}^{208}_{82}\text{Pb} \qquad {}^{212}_{83}\text{Bi} \qquad {}^{212}_{84}\text{Po} \qquad {}^{216}_{85}\text{At} 81208​Tl82208​Pb83212​Bi84212​Po85216​At

85216At{}^{216}_{85}\text{At}85216​At decays by emitting an α\alphaα-particle. Into which of the other nuclides in the list does it decay?

[1]
f.

81208Tl{}^{208}_{81}\text{Tl}81208​Tl decays by emitting a β\betaβ-particle. Into which of the other nuclides in the list does it decay?

[1]
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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