Clumps
Chemistry: AQA GCSE Higher, topic 2.3.16
'Clumps' of Particles
Solid and liquid matter often ‘clump’ together into small particles. Different sized ‘clumps’ have different names. The size of these clumps are typically measured in nanometres (1 nm = 1x10-9 m).
Nanoparticles
- 1 - 100 nm long.
- 10 - 1,000 atoms.
Fine particles
- 100 - 2,500 nm long.
- 1,000 - 25,000 atoms.
Coarse particles (dust)
- 2,500 - 10,000 nm long.
- 25,000 - 100,000 atoms.
Test yourself on Clumps
1 nanometre is the same as...
A particle has a diameter of approximately 1,500nm - what class of particles does it belong to?
Which category of particle 'clump' is larger?
Particle Size
A particle contains approximately 40,000 atoms. What class of particle is it?