Week 2 Flashcards
1
Q
What is the structure of ionic compounds?
A
A giant ionic lattice.
2
Q
What is the bond that holds ionic compounds together?
A
Electrostatic forces between the positive and negative ions
3
Q
What are the properties of ionic compounds?
A
- High melting point because of strong electrostatic force
- Can’t conduct electricity when they are solid, but they can conduct when they are in a solution or melted because there are free moving electrons.
4
Q
How do you figure out the empirical formula from a diagram?
A
- Look at the diagram to work out what ions are in the compound
- Work out what charges the ions will form
- Balance the charges so the charge of the empirical formula is zero
5
Q
When writing an empirical formula, what goes first, the metal or the non-metal?
A
The metal
6
Q
What is ionic bonding?
A
It is when a metal and a non-metal bond
7
Q
What is covalent bonding?
A
It is between two non-metals and they share electrons to get full outer shells.
8
Q
What force holds covalent bonds together?
A
Covalent bonds
9
Q
What are the properties of simple covalent bonds?
A
- Low melting and boiling points
- Don’t conduct electricity
