Metallic Bonding Flashcards
1
Q
What are the properties of metals?
A
- High density
- Not soluble in water
- Shiny
- Malleable
- Good conductors of electricity and heat
- High melting and boiling points
2
Q
Explain how metal ions and electrons are held together in a metal.
A
There is a strong electrostatic attraction between the sea of delocalised electrons and the positive metal ions
3
Q
Explain why metals have high melting and boiling points.
A
- The electrostatic forces between the ions and the electrons are strong
- Therefore, a lot of energy is needed to break them
4
Q
Explain why metals are good conductors of electricity.
A
Metals contain delocalised electrons, which are free to move around and carry a charge
5
Q
Explain how the structure of metals means they are able to be bent and shaped.
A
Metallic structures have layers of ions that are able to slide over one another
6
Q
(Exam-style question)
A
7
Q
What are the properties of non-metals?
A
- Low density
- Dull appearance
- Brittle
- Poor conductors of electricity
- Low melting and boiling points
8
Q
(Exam-style question)
A
