(a)[2]
Draw a line from each symbol to the description that goes with it.
(b(i))[3]
Show that the half-life of the nuclide is 5 years.
(b(ii))[2]
Determine the year when the activity of the sample was 10 000 counts/s.
Physics 0625 · IGCSE · Radioactivity
Radioactivity — practice question
The nuclide notation $^A_Z X$ is used to represent an atom’s nucleus.
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This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “a line joining A to the middle box labelled nucleon number” …
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