L7 - Giant covalent structures

When atoms share electrons so that they both get a full outer shell.

• Covalent bond

• Ionic bond

• Compound

• Pairing

Weak attractive forces between molecules. When a simple covalent substance melts or boils, it is these forces that are broken (not the covalent bonds in each molecule).

• Covalent forces

• Electronic forces

• Intermolecular forces

• Intermolecular bonds

The "properties" of a material are...

• ...its characteristics, features, and behaviour.

• ...what the material owns.

• ...only what it looks like.

• ...only how it behaves in certain situations.

A substance's ability to allow heat or electricity to pass through it

• Charge

• Conductivity

• Reactivity

• Liquidity

Usually electrons or ions, which move through a substance as electricity.

• Chargers

• Charged particles

• Electroballs

• Electric carriers

Electrons that are not attached to a particular atom.

E.g. in a metal, outer electrons can be free to move through the solid.

• Loose

• Independent

• Delocalised

• Disconnected

If two atoms are 'attracted' to each other, it means they....

• ...really like each other

• ...both feel a force pulling them together

• ...are touching each other

• ...cannot be separated

When electrons are lost by one atom and gained by another, so that they both get full outer shells.

• Covalent bond

• Ionic bond

• Pairing

• Compound

What is an 'ion'?

• A particle found in the nucleus of an atom

• Something in the periodic table

• A tool you use for flattening clothes

• An atom that has lost or gained electrons

A type of covalent bond where four electrons (two pairs) are shared between two atoms.

• Pair bond

• 4-way bond

• Secondary bond

• Double bond