Bonding Molecules

Question 1

When non metals combine with other non metals:

Answer 1

The atoms share electrons to form a molecule.

Question 2

Molecule

Answer 2

A substance made up of atoms joined by covenant bonds

They can have simple or giant structures.

Question 3

Covalent bonding

Answer 3

A shared pair of electrons with one being supplied by each atom on either side of the bond.

Question 4

Intramolecular bonds

Answer 4

Bonds inside of a molecule e.g. H2 to 0

Question 5

Intermolecular forces of attraction

Answer 5

Forces of attraction between two molecules.

Question 6

Simple molecule properties.

Answer 6

Low melting point, as little energy is needed to break the intermolecular forces.
Don’t conduct energy, as there are no free ions or electrons.

Question 7

Giant molecular properties.

Answer 7

Very high melting point, as structure is made up of lots of strong bonds.
Don’t conduct energy, as there are no free ions or electrons (apart from in graphite)
Very strong

Question 8

Why is graphite soft and diamond hard

Answer 8

Graphite is made from layers, which slide over each other, meaning weak intermolecular forces.
Diamond has a giant lattice structure.