Learning objective

Explain why gamma radiation is weakly ionising but highly penetrating.

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At a glance

Flashcards

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Topic

Atoms and nuclear radiation

Subtopic

Radioactive decay and nuclear radiation

AQA GCSE PhysicsAtomic structure

Study support

Understand this objective

Short explanation

Within Radioactive decay and nuclear radiation, this learning objective asks you to explain why gamma radiation is weakly ionising but highly penetrating. Focus on the approved ideas gamma radiation and connect them clearly to Atoms and nuclear radiation. A strong response should state the relevant particle, radiation, isotope, decay, half-life or nuclear-equation idea, then explain how it answers the exact command word. Avoid swapping nearby concepts such as atomic number and mass number, isotope and ion, alpha, beta and gamma radiation, or contamination and irradiation.

Key concepts

gamma radiationionising power

Why it matters

This objective helps connect Radioactive decay and nuclear radiation to exam-style questions, flashcards, and revision notes for Atoms and nuclear radiation.

Common mistakes

1 linked

Gamma Radiation Characteristics: Remember that gamma radiation is weakly ionising due to its high energy and ability to pass through materials, but it does not cause as much ionisation as alpha or beta radiation.

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