Ionic Compounds

Question 1

Ionic bonds

Answer 1

• Are an electrostatic force of attraction • It only occurs between metals and non-metals • Metals always LOSE electrons, non-metals always GAIN electrons

Question 2

Giant ionic lattices, melting and boiling points are…

Answer 2

High - strong electrostatic forces of attraction exist between all ions in the lattice that require a lot energy to overcome.

Question 3

Do giant ionic lattices conduct electricity?

Answer 3

Yes - ions are present to carry charge and conduct electricity (only conduct electricity when in water).

Question 4

Are giant ionic lattices soluble in water?

Answer 4

Yes - ions are present and can be pulled apart (dissociate themselves from water).

Question 5

OILRIG

Answer 5

Oxidation is loss of electrons and reduction is gain of electrons.

Question 6

Ionic bonding is…

Answer 6

A strong electrostatic attraction between oppositely charged ions.

Question 7

An ionic crystal is….

Answer 7

A giant three-dimensional lattice structure held together by the attraction between oppositely charged ions.

Question 8

What is required in order to conduct electricity?

Answer 8

Ions - in order to carry charge.

Question 9

What does the structure of sodium chloride look like?

Answer 9

giant ionic lattice structure - ions are held together in a closely packed 3D lattice arrangement by the attraction between oppositely charged electrons

Question 10

What is the relationship beteen ionic charge and the melting and boiling point of an ionic compound?

Answer 10

• The higher the differece in charge, the stronger the attraction will be.

+ and - ions will have a weaker charge than 3+ and 3- ions

• The stronger the attraction, the harder it is to break the bond and so the melting and boiling points are higher.
• The bigger the charge of an ion, the higher the melting and boiling point.