Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-9702-PP1-0011 markL1 FoundationCalculatorDecay equations

Radium-226 (

Z=88

) decays by α emission. State the nucleon number of the daughter nucleus.

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SA-9702-PP1-0021 markL1 FoundationCalculatorDecay equations

For the same decay (

^{226}_{\;\,88}\text{Ra}

by α emission), state the proton number of the daughter nucleus.

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SA-9702-PP1-0041 markL1 FoundationCalculatorNuclear atom

In the α-scattering experiment, the fact that most α-particles passed straight through the foil shows that

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SA-9702-PP1-0051 markL1 FoundationCalculatorNuclear atom

State the number of neutrons in a nucleus of

^{235}_{\;\,92}\text{U}

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SA-9702-PP1-0061 markL1 FoundationCalculatorDecay equations

In β⁻ decay, the particles emitted are

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SA-9702-PP1-0081 markL1 FoundationCalculatorNuclear atom

Isotopes of an element have

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SA-9702-PP1-0121 markL1 FoundationCalculatorDecay equations

Gamma radiation consists of

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SA-9702-PP1-0031 markL2 StandardCalculatorDecay equations

Carbon-14 (

Z=6

) decays by β⁻ emission. State the proton number of the daughter nucleus.

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SA-9702-PP1-0071 markL2 StandardCalculatorDecay equations

β-particles from a given source have a continuous range of energies because

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SA-9702-PP1-0091 markL2 StandardCalculatorNuclear atom

An atom has diameter

1\times10^{-10}

m and its nucleus has diameter

1\times10^{-14}

m. Calculate the ratio atom diameter : nucleus diameter.

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SA-9702-PP1-0101 markL2 StandardCalculatorDecay equations

In β⁺ decay, the proton number of the nucleus

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SA-9702-PP1-0112 marksL3 ExamCalculatorDecay equations

Uranium-238 (

Z=92

) decays to lead-206 (

Z=82

) by a series of α and β⁻ decays. Calculate the number of β⁻ decays.

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