CAIE IGCSE Physics 5.2.3.4 Effect of Decay Decay and Questions

Practise tracking how alpha, beta and gamma emissions change a nucleus, including proton and neutron numbers and stability.

Exam points

calculate corrected count rate by subtracting background count rate
convert detector counts and time into counts per second or minute
analyse radioactive decay count-rate data and half-life measurements

[Maximum number: 1]

A source contains a radioactive isotope of strontium. This isotope decays by emission of $\beta$ -particles. The half-life of this isotope is 29 years.

State the change in the nucleus which occurs when a $\beta$ -particle is emitted.

(in the nucleus a) neutron is changed into a proton (and an electron which is the emitted $\beta$ -particle)

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CAIE IGCSE Physics 5.2.3.4 Effect of Decay Decay and Questions question 1