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5.2.3a Radioactive decay

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Question 85

A radioactive nucleus emits an α\alphaα-particle (alpha particle).

What happens to the proton number (atomic number) of the nucleus?

A

It stays the same.

B

It increases by 1.

C

It decreases by 2.

D

It decreases by 4.

Markscheme

5.2.3a Radioactive decay Questions

  1. IGCSE
  2. /Physics
  3. /5.2.3a Radioactive decay

120 exam-style questions on CIE IGCSE Physics 5.2.3a Radioactive decay. Each one has a worked solution and a mark scheme showing where the marks go.

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