Ionic Bonds And Compounds

Question 1

Describe the process of ionic bonding.

Answer 1

When a metal atom reacts with a non-metal atom electrons in the outer shell of the metal atom are transferred.
Metal atoms lose electrons to become positively charged ions.
Non-metal atoms gain electrons to become negatively charged ions.
The ions produced by metals in Groups 1 and 2 and by non-metals in Groups 6 and 7 have the electronic structure of a noble gas (Group 0).

Question 2

What are the limitations of ionic compound models?

Answer 2

Ball and Stick :
- Show the structure of the compound.
- Suggest the pattern extends.
- Bonds are represented as ‘sticks’ when in reality the ions are much closer together.

2D/3D Models :
- Show the structure.
- Show the relative sizes of the ions.
- Only show the outer layer.
- Do not show the transfer of electrons.

Question 3

What structure do ionic compounds form?

Answer 3

A giant ionic lattice.