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Gamma radiation — OCR GCSE Combined Science A Definition

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Combined Science
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Gamma radiation

GCSE Combined Science · key term

Gamma radiation

Definition

Electromagnetic radiation emitted when a nucleus loses energy, without changing its proton or neutron numbers.

Used by OCR

How each exam board covers it

OCR GCSE Combined Science A · J250

Specification P4.3e, P4.3g · Physics Paper 2

Gamma radiation is electromagnetic radiation. A nucleus can emit it to lose excess energy, often after another radioactive decay.
Revise: Emissions and Nuclear Changes
Electromagnetic radiation emitted when a nucleus loses energy, with no change in its mass number or atomic number.
Revise: Balancing Nuclear Equations

OCR Combined Science A past papers

Related key terms

Alpha particle
Atomic number
Mass number
Beta particle
Beta-minus particle

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Daughter nucleus