Video Transcript
Put the following sizes of particle
in the correct order from smallest to largest: coarse particles, nanoparticles, fine
particles.
Since this problem is asking us to
identify the correct order from smallest to largest, let us first create a scale
from one-tenth to 100,000 nanometers. We can use this scale to compare
the size of atoms and molecules with the size of nanoparticles. We can also use it to compare
nanoparticle size with the size of coarse or fine particles.
We can see that atoms and molecules
have a diameter that ranges from about one-tenth to 10 nanometers. Carbon atoms are an example of an
elemental atom, and carbon dioxide is an example of a simple molecular compound. The carbon atom has a width of
about one-tenth nanometer, and carbon dioxide molecules are approximately
three-tenths nanometers wide.
Let’s now compare the size of atoms
and molecules with the width of nanoparticles. Nanoparticle diameters range from
one to 100 nanometers. Some nanoparticles are the same
size as a single molecule, and others are a bit bigger or smaller.
Let’s now move on to thinking about
coarse and fine particles. Fine particles are particles of
matter that have a diameter between 100 and 2,500 nanometers. Coarse particles are wider than
fine particles. They have a diameter between 2,500
and 10,000 nanometers. Fine and coarse particles are wider
than nanoparticles. Fine particles are two to three
orders of magnitude larger. Coarse particles are up to 10,000
times bigger.
Therefore, the correct answer
choice is nanoparticles, fine particles, and coarse particles.
