Ionic bonding

Question 1

What structure does ionic compounds form?

Answer 1

Giant lattice structure

Question 2

What physical properties does ionic compounds have/

Answer 2

1. High b.p/ m.p (most), thus non-volatile - solid R.T.P

2. Soluble in water but insoluble in organic substances

Question 3

Why do ionic compounds conduct electricity when molten/ aqueaous

Answer 3

• Solid state, ions held in fixed positions by strong electrostatic forces of attraction
• When molten/ aqueous, the strong forces of attraction between oppositely charged ions are overcome
• Ions in the ionic compound in the aqueous state are free to move to conduct electricity

Question 4

Why diff in b.p/ m.p? (ionic bonding)

Answer 4

The more the electrons exchanged, the greater the electrostatic forces between the the molecules, thus…

Question 5

Define the term ionic bonding

Answer 5

transfer of electrons from metal to non-metal (not sharing)

Question 6

Define the term ionic bonds

Answer 6

The strong electrostatic forces of attraction between positive and negative ions