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6 Radioactivity

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Question 36
F

Uranium-238 decays through a series of nuclei.

The Figure shows the first four decays in the series.

Figure

image

a.

Identify decay X.

Give a reason for your answer.

[2]
b.

Determine the mass number and the atomic number of the uranium nucleus in box 4.

[2]
c.

The uranium nucleus in box 1 and the uranium nucleus in box 4 are isotopes of uranium.

Explain why.

[2]
d.

Give the mass number of the thorium nucleus in box 5.

[1]
Markscheme

6 Radioactivity Questions

  1. GCSE
  2. /Physics
  3. /6 Radioactivity

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