Physics 0625 · IGCSE · Radioactivity

Radioactivity — practice question

Table 10.1 gives details of four nuclides.
(a(i))[1]

Identify the two nuclides that have the same number of nucleons.

(a(ii))[2]

Identify the nuclide with the greatest number of neutrons.

(b)[3]

Calculate the mass of plutonium-241 left in the sample after 42 years.

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This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Plutonium-241 plus Americium-241” …

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