Properties and Bonding Overview Flashcards
1
Q
Ionic melting point
A
High
- Many strong forces to overcome before the ions can be freed from their positions in the lattice
2
Q
Ionic volatility
A
Low
- Many strong forces to overcome before the ions can be freed from their positions in the lattice
3
Q
Ionic electrical conductivity
A
Solid state: insulators
- Have no freely moving charged particles (locked into lattice)
Molten/aqueous state: conductors
- Charged ions can carry an electric current because free to move.
4
Q
Ionic solubility
A
- Can easily form bonds to polar solvent molecules
Soluble in polar solvents
Insoluble in non-polar solvents
5
Q
Covalent melting point
A
Low
- Bonds between molecules weak
- Only requires a small quantity of heat energy to break electrostatic attraction
6
Q
Covalent volatility
A
Volatile
- Bonds between molecules weak
- Only requires a small quantity of heat energy to break electrostatic attraction
7
Q
Covalent electrical conductivity
A
Not conductive
- No charged particles
8
Q
Covalent solubility
A
Non-polar do not dissolve in polar solvents (except water)
Non-polar covalent compounds will dissolve only in non-polar solvents
9
Q
Giant covalent melting point
A
Extremely high
- Many strong forces to overcome before the ions can be freed from their positions in the lattice
10
Q
Giant covalent solubility
A
Low in all solvents
11
Q
Giant covalent volatility
A
Low
- Many strong forces to overcome before the ions can be freed from their positions in the lattice
12
Q
Giant covalent electrical conductivity
A
Depends on the availability of electrons in the valence shell (e.g. graphite)
