Topic 2 = Bonding Flashcards
1
Q
Ionic bonding is between?
A
A metal and non metal
2
Q
Covalent bonding is between?
A
non-metal and non-metal
3
Q
metallic bonding is between?
A
metal and metal
4
Q
Properties of ionic bonding
A
- Giant structure
- high melting and boiling point
- dissovles in water
- conducts when molten
5
Q
properties of giant covalent bonding
A
- High melting and boiling point
- does not dissolve in water
- doesn’t conduct electricity except graphite
6
Q
properties of simple molecular covalent bonding
A
- low melting and boiling point
- sometimes dissolves in water
- does not conduct electricity
7
Q
properties of metallic bonding
A
- Giant structure
- high melting and boiling point
- doesn’t dissolve in water
- does conduct
8
Q
Solid Diagram
A
- Very close together in a fixed position
- Vibrates
9
Q
Liquid Diagram
A
- quite close together
- move past each other
10
Q
Gas Diagram
A
- No fixed shape or volume
- Move randomly in all directions
- can be compressed
11
Q
Properties of Diamond
A
- 4 covalent bonds
- very hard
- very high melting point
- does not conduct electricity
12
Q
Properties of Graphite
A
- 3 covalent bonds
- soft-has layers
- very high melting point
- conducts electricity
13
Q
Why does Diamond not conduct electricity?
A
The electrons are in a fixed place so cant carry electrical charge.
14
Q
Why does graphite conduct electricity?
A
Only 3 covalent bonds so theres a free bond.so the delocalised electrons are in the layers.so it can carry charge.
15
Q
Properties of Fullerenes
A
- High tensile strength
- Good conductor of electricity
- Unreactive
- Large surface area to volume ratio
