A researcher compares cube-shaped nanoparticles for use in a medical test.
The possible edge lengths are shown in the table.
| Edge length in nm\text{nm}nm |
|---|
| 2 |
| 3 |
| 6 |
| 18 |
What is the edge length of a nanoparticle with a surface area to volume ratio of 1:31 : 31:3?
3 nm3\ \text{nm}3 nm
18 nm18\ \text{nm}18 nm
2 nm2\ \text{nm}2 nm
6 nm6\ \text{nm}6 nm
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.