A unit used to measure very small things (10⁻⁹ m or one billionth of a metre).

A very small particle (1 to 100 nm in size).

Written in the form of a × 10ⁿ, where 1 ≤ a < 10, n can be any positive or negative integer.

Any material consisting of nanoparticles.

The total amount of surface area of an object divided by its volume.

Nanoparticles

Chemistry

In the Organic chemistry unit, pupils will learn more about hydrocarbons and learning about other homologous series, along with their reactions.

In the Structure and bonding unit, pupils learned about metallic, ionic and covalent bonding and about giant ionic structures, as well as the structure of covalent molecules, beginning to form links to properties

Chemistry of carbon

The total surface area of an object divided by its volume.

Match each term to the correct definition.

Place the following prefixes in order of size from the largest to the smallest.

What do we call materials made up of particles?

The surface area to volume ratio of the cube is 6 : 5.

The surface area of the cube is 150 nm².

The surface area to volume ratio of the cube is 125 : 150.

A cubic shaped nanoparticle has a side length of 5 nm. Which of the following statements about the nanoparticle are true?

True or false? Nanotubes are thermal and electrical conductors.

They have a high surface area to volume ratio.

Explain why nanoparticles are used as catalysts in chemical reactions.

The ratio of yellow beads to blue beads is 9 : 7. 

The ratio of blue beads to red beads is 5 : 7.

The ratio of yellow beads to red beads is 9 : 5.

The ratio of red beads to blue beads is 7 : 5.

A beaker contains 5 red beads, 9 yellow beads and 7 blue beads. Which of the following ratios are correct?

Place the following prefixes in order of size, starting with the largest.

What type of bond can be found between carbon atoms in materials such as diamond?

Giant covalent structures have a high melting and boiling point because the covalent bonds need a lot of {{}} to be broken.

A single sheet of carbon atoms one-atom-thick.

All the carbon outer shell electrons form covalent bonds.

Why are graphene and graphite thermal and electrical conductors? 

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