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6.1 Atomic structure and isotopes

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Question 42

A researcher investigates how the attenuation of beta radiation is affected by the thickness of shielding material.

The apparatus available is:

  • a sealed strontium-90 source (emitting beta radiation)
  • a Geiger–Müller (G-M) tube connected to a digital counter
  • 6 sheets of aluminium, each of thickness 0.5 mm
  • a metre rule.

Sketch a labelled diagram showing the experimental setup that should be used to obtain measurements for this investigation.

[2]
Markscheme

6.1 Atomic structure and isotopes Questions

  1. GCSE
  2. /Physics
  3. /6.1 Atomic structure and isotopes

81 exam-style questions on Edexcel GCSE Physics 6.1 Atomic structure and isotopes, covering 6.1.1 Structure of the atom, 6.1.2 Isotopes: atomic and mass number, 6.1.3 Sub-atomic particles: masses and charges, and 6.1.4 Electron orbits and energy changes. Each one has a worked solution and a mark scheme showing where the marks go.

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