A research team is designing a tracking tag to attach to parcels.
Which statement explains how nanoparticles may be used when making the tag?
They can be used to reduce the surface area exposed for a given volume.
They can be used because each particle is smaller than an individual atom.
They can be used so the material keeps the same properties as the bulk material.
They can be used to make very small electronic components.
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.