2.4 Bulk and surface properties of matter including nanoparticles

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Question 40

An air-quality monitor detects a liquid droplet suspended in air. The droplet has a diameter of 4 × 10^-6 m.

Category	Diameter in $nm\text{nm}$
Nanoparticle	1 to 100
Fine particle ( $PM2.5\text{PM}_{2.5}$ )	100 to 2500
Coarse particle ( $PM10\text{PM}_{10}$ )	2500 to $00010\,000$

Calculate the diameter of the droplet in $nm\text{nm}$ .

State which category in the table contains the droplet.

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Markscheme

2.4 Bulk and surface properties of matter including nanoparticles Questions

GCSE
Chemistry
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.

Question bank·2.4 Bulk and surface properties of matter including nanoparticles