Question Video: Ordering Particles By Increasing Size | Nagwa Question Video: Ordering Particles By Increasing Size | Nagwa

# Question Video: Ordering Particles By Increasing Size Chemistry • First Year of Secondary School

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Put the following sizes of particle in the correct order from smallest to largest. Coarse particles, Nanoparticles, Fine particles

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### 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.

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