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2.4 Bulk and surface properties of matter including nanoparticles

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Question 31

A materials scientist is comparing two particles made of iron. The measured diameters are shown in the table.

ParticleDiameter in nm\text{nm}nm
Iron atom0.26
Iron nanoparticle23
a.

Calculate the factor by which the atom's diameter must be multiplied to equal the nanoparticle's diameter.

Give your answer to 2 significant figures.

[2]
b.

Give, in standard form, the number of metres corresponding to the measured nanoparticle diameter.

[1]
Markscheme

2.4 Bulk and surface properties of matter including nanoparticles Questions

  1. GCSE
  2. /Chemistry
  3. /2.4 Bulk and surface properties of matter including nanoparticles

104 exam-style questions on AQA GCSE Chemistry 2.4 Bulk and surface properties of matter including nanoparticles, covering 2.4.1 Sizes of particles and their properties and 2.4.2 Uses of nanoparticles. Each one has a worked solution and a mark scheme showing where the marks go.

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