Question 6

Which statement correctly describes the size of a nanoparticle?

Nanoparticles are smaller than individual atoms but larger than fine particles ( $PM_{2.5}$ ).

Nanoparticles are larger than coarse particles ( $PM_{10}$ ) but smaller than individual atoms.

Nanoparticles are larger than individual atoms but smaller than fine particles ( $PM_{2.5}$ ).

Nanoparticles are larger than fine particles ( $PM_{2.5}$ ) and larger than coarse particles ( $PM_{10}$ ).

Which statement correctly describes the size of a nanoparticle?

Nanoparticles are smaller than individual atoms but larger than fine particles ( $PM_{2.5}$ ).

Nanoparticles are larger than coarse particles ( $PM_{10}$ ) but smaller than individual atoms.

Nanoparticles are larger than individual atoms but smaller than fine particles ( $PM_{2.5}$ ).

Nanoparticles are larger than fine particles ( $PM_{2.5}$ ) and larger than coarse particles ( $PM_{10}$ ).

Bulk and surface properties of matter including nanoparticles