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2.4 Bulk and surface properties of matter including nanoparticles

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Question 13

Gold nanoparticles are used in some medical tests. In a model of one of these particles, a row of 250 gold atoms touching end to end stretches across its diameter. Each gold atom has a diameter of 0.28 nm0.28\ \text{nm}0.28 nm.

What is the diameter of the gold nanoparticle?

[1]
A

7.0 nm7.0\ \text{nm}7.0 nm

B

700 nm700\ \text{nm}700 nm

C

70 nm70\ \text{nm}70 nm

D

893 nm893\ \text{nm}893 nm

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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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