Physics 0625 · IGCSE · Radioactivity

Radioactivity — practice question

(a)[3]

Draw a line from each atom part to the matching description.

(b(i))[2]

Explain the meaning of the term isotope.

(b(ii))[3]

Use Fig. 12.1 to calculate the half-life of tritium. Show clearly the way you used the graph.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “line from ‘nucleus’ to ‘is the centre of an atom’” …

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