What is a nanoparticle?
A particle between 0.10.10.1 and 1 nm1\,\mathrm{nm}1nm in size
A particle between 111 and 100 nm100\,\mathrm{nm}100nm in size
A particle between 100100100 and 2500 nm2500\,\mathrm{nm}2500nm in size
A particle between 111 and 100 μm100\,\mu\mathrm{m}100μm in size
36 exam-style questions on Edexcel GCSE Chemistry 10.5 Bulk and surface properties of matter including nanoparticles, covering 10.5.1 Nanoparticles: size, uses and risks and 10.5.2 Comparing and selecting materials. Each one has a worked solution and a mark scheme showing where the marks go.