A technician measures the separation between two contacts in a small electronic component. The recorded separation is 84 nm84\ \text{nm}84 nm.
Which measurement gives this separation in metres?
8.4×10−8 m8.4 \times 10^{-8}\ \text{m}8.4×10−8 m
8.4×10−9 m8.4 \times 10^{-9}\ \text{m}8.4×10−9 m
8.4×10−7 m8.4 \times 10^{-7}\ \text{m}8.4×10−7 m
8.4×10−6 m8.4 \times 10^{-6}\ \text{m}8.4×10−6 m
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.