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6 Radioactivity

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Question 42
F

A student writes three statements about radioactive decay.

Statement 1: In beta minus decay, an electron from outside the nucleus is emitted.

Statement 2: When a nucleus emits a neutron, it becomes a different element.

Statement 3: When a nucleus emits gamma radiation, its mass number decreases by 1.

a.

Explain why Statement 1 is wrong.

[2]
b.

Give a corrected version of Statement 2.

[1]
c.

Explain why Statement 3 is wrong.

[2]
Markscheme

6 Radioactivity Questions

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

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