Chapter 7: Allotropes of Carbon and Metallic Bonding

________ are molecules of carbon, shaped like closed tubes or hollow balls.

________ is a sheet of carbon atoms joined together in hexagons.

________ that are held together by metallic bonding include metallic elements and alloys.

The electrons in the outer ________ of the metal atoms are delocalised.

There are ________ attraction between the positive metal ions and the shared negative electrons.

________ are harder and so more useful than pure metals.

The ________ forms around another atom or molecule, which is then trapped inside.

________ has a giant covalent structure, made up of carbon atoms that each form four covalent bonds.

________ have a surface area, so they could make great industrial catalysts, individual catalyst molecules could be attached to the ________.

________ can be used to ‘ cage other molecules.

Contains sheets of hexagons

One layer of graphite

__________at room temperature

______conductors of electricity and heat

______malleable

____harder than pure metals

First fullerenes to be discovered

is able to fit inside the hydrophobic cavity of HIV proteases, inhibiting the access of substrates to the catalytic site of enzymes

very hard due to giant covalent structure