Radioactive

Definition

Describes an unstable nucleus that spontaneously emits radiation as it decays.

Used by Edexcel

Specification 6.42P · Paper 1

The daughter nuclei are called fission products. They are radioactive: their nuclei are unstable and can later decay, emitting radiation.
Revise: Fission Products

1
When naming the radioactive products of fission, identify the daughter nuclei. The emitted neutrons are radiation, but they are not radioactive nuclei.

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GCSE Physics · key term

Describes an unstable nucleus that spontaneously emits radiation as it decays.

Used by Edexcel

Specification 6.42P · Paper 1

The daughter nuclei are called fission products. They are radioactive: their nuclei are unstable and can later decay, emitting radiation.
Revise: Fission Products

1
When naming the radioactive products of fission, identify the daughter nuclei. The emitted neutrons are radiation, but they are not radioactive nuclei.

Create a free account to read GCSE Physics revision notes for your exam board and track your progress.