Bonding, Structure And Properties Flashcards
Name the four states of matter and their symbol
Solid (s)
Liquid (l)
Gas (g)
Aqueous (aq)
Describe the movement in the 3 states of matter ☁️💧🧊
Gas - Able to move randomly freely in straight lines with lots of space
Liquid - Able to move randomly and can slip over each other
Solid - Vibrate around a fixed point in a regular arrangement
Name two drawbacks of the 2D space filling model
It doesn’t show the forces of interaction between particles
It shows the particles as solid, hard spheres whereas in real life they aren’t
Name the arrows
—————>
🧊—->💧——>☁️
🧊<——💧<——☁️
<—————
Sublimation
Deposition
Melting
Freezing
Condensing
Evaporating
Describe the structure of giant ionic lattices
Regular arrangement of oppositely charged ions with lots of ionic bonds between them
Describe the melting and boiling point of ionic structures
- very high
Because there are many ionic bonds, there is lots of energy needed to break those bonds
Why do ionic compounds only conduct electricity when dissolved or melted?
None of the particles are free to move when in a solid, however in liquid form they are free to move meaning they can pass charges
How is an ionic compound formed?
When a positive metal ion reacts with a negative non-metal ion, electrons are exchanged. This creates an electrostatic force between them because oppositely charged ions are attracted to each other.
What is:
An ionic bond
An ionic compound
A giant ionic structure
Strong electrostatic force between ions
Compounds of metals and non metals
The regular arrangement of ions
What is:
A metallic bond
A giant metallic structure
The strong electrostatic attraction between positive metal ions and a sea of delocalised electrons
A giant lattice of positive metal ions and delocalised electrons held together by metallic bonds
Describe the arrangement of metallic structures
Regular arrangement of positive metal ions and a sea of delocalised electrons
Explain how metallic structures can pass electric charges
The delocalised electrons are free to move, meaning electric charges can be passed
Explain how metallic structures are malleable
The regular arrangement of ions allows the layers to slide over each other
Describe the melting and boiling point in metallic compounds
The melting point and boiling point is high because it takes a lot of energy to break the bonds in metallic structures
How are metallic structures formed?
Arises from electrostatic attractions between the positive nuclei of the atoms and the negative electrons
