Ionic Bonding - Compounds Flashcards
What kind of structures do ionic bonds produce? (2 adjectives)
Giant ionic structures
What kind of structure do ionic compounds have? (2 adjectives + unmentioned word)
Giant ionic lattices
In ionic compounds, what sort of arrangement do the ions form?
A closly packed regular lattice arrangement
What are the forces of attraction between ions called?
Electrostatic
Describe the electrostatic forces of attraction between ions
(3 points)
They are very strong between oppositely charged particles in all directions
Why do salt crystals tend to be cuboid in shape?
(also mention ions involved)
Because a single crystal of sodium chloride (salt) is one giant ionic lattice
The Na+ and Cl- ions are held together in a regular lattice
Ionic compounds all have similar ____
Ionic compounds all have similar properties
Name 5 properties that ionic compounds share
- High boiling points
- High melting points
- Conduct electricity when melted
- Dissolve easily in water
- Conduct electricity when dissolved in water
Why do ionic compounds have high boiling and melting points?
(2 points)
Because of the strong attraction between the ions.
It takes a large amount of energy to overcome this attraction.
Why can ionic compounds conduct electricity when melted?
When melted the ions are free to move and they’ll carry electric current
Why can ionic compounds conduct electricty when dissolved in water?
The ions separate and are free to move in the solution, so they’ll carry electric current
Why, if you want to conduct electricity using an ionic compound, is it easier to dissolve it than melt it?
Because it takes a lot of energy to melt an ionic compound
Draw a diagram showing how eletrons are free to move when an ionic compound is dissolved in water/ melted, compared to when it’s a solid
