Ionic Bonding

Question 1

What is ionic bonding?

Answer 1

The strong electrostatic attraction between positive metal ions and negative non-metal ions

Question 2

What is an ion?

Answer 2

1. A charged atom formed by gaining or losing electrons

2. They then gain a stable electronic structure

Question 3

What charge ion do all transition metals form? (2)

Answer 3

1. +2 ions unless they have roman numerals next to them

2. E.g. Fe(III) would form a +3 ion

Question 4

How do we represent ionic bonds?

Answer 4

1. Dot and cross diagrams
2. Both elements should have full shells
3. Only draw one shell
4. Put a big number in front of each element to show how many atoms of it are in the compound

Question 5

What are the features of an ionic compound?

Answer 5

1. Have an overall charge of 0
2. High melting and boiling points b/c lots of energy is required to overcome the strong attraction between the ions
3. Do not conduct electricity when solid b/c the ions are in fixed positions
4. Can conduct electricity when dissolved in water b/c the ions are now free to move

Question 6

What structure do ionic compounds form?

Answer 6

Giant ionic lattice with very strong electrostatic forces of attraction between closely packed ions in very direction