Topic 2

Question 1

Ionic Compound is…

Answer 1

Made up of ions

Usually contain an anion and a cation = opposites attract

Question 2

Lattice

Answer 2

Massive structure of ions

Opposite charges together - same charges don’t touch = same repel

Question 3

Properties of IONIOC COMPOUNDS

4

Answer 3

High Melting & Boiling Points
Often soluble in water
Do not conduct electricity when solid
Do not conduct electricity when dissolved

Question 4

Covalent Bond

Answer 4

Pair of electrons that are shared between atoms

STRONG

Question 5

Intermolecular forces

Answer 5

Weak forces between molecules

Question 6

Allotrope

Answer 6

Different structural form of the same element

Question 7

Properties of diamonds

Answer 7

Very high melt & boil points
Doesn’t conduct = electrons can’t move
Very strong = covalent bonds
Insoluble in water

Question 8

Properties of graphite

Answer 8

Very high melt & boil points
Conducts electricity = some electrons are free to move
Brittle and can slide = weak forces between layers
Insoluble in water

DELOCALISED ELECTRONS = not fixed

Question 9

Monomers

Covalent bonds

Answer 9

Simple covalent bonds

Have double bonds