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Atomic structure and radiation

WJEC 3430QD — matched to your course.

Nuclear structure, radioactive decay, half-life and radiation risks.

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Atomic structure and radiation

Tailored to WJEC 3430QD.

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Subtopics and study areas

  • Describe alpha, beta and gamma radiation.
  • Interpret half-life and activity data.
  • Distinguish contamination from irradiation and compare radiation hazards.

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Modelling radioactive half-life

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Subtopics and study areas

  • Use dice or cubes to model random decay and determine a model half-life from a decay curve.