C4g - Metal Structure and Properties

?
  • Created by: Esme
  • Created on: 21-11-12 18:42
What can iron be used for? Why?
Making steel, it's strong.
1 of 11
What can copper be used for? Why?
Making electrical wiring, it's a good conductor.
2 of 11
What properties do metals have?
Lustrous, hard, dense, tensile, high melting/boiling points, good conductors of heat/electricity.
3 of 11
How are metal atoms packed?
Very close together in a regular arrangement.
4 of 11
How are metal atoms held together?
By metallic bonds.
5 of 11
What can the structure of metal atoms be described as?
A structure of crystals?
6 of 11
Describe metal crystals?
Closely packed positive metal ions in a 'sea' of delocalised electrons.
7 of 11
Describe metallic bonds?
Electrostatic attractions between the metal ions and the delocalised electrons.
8 of 11
What is a superconductor?
A metal that has little or no resistance to the flow of electricity.
9 of 11
What are superconductors useful for?
Powerful electromagnets, fast electronic circuits, power transmissions.
10 of 11
What is the disadvantage of current superconductors?
They only work at belowe -200 they're costly and impractical.
11 of 11

Other cards in this set

Card 2

Front

What can copper be used for? Why?

Back

Making electrical wiring, it's a good conductor.

Card 3

Front

What properties do metals have?

Back

Preview of the front of card 3

Card 4

Front

How are metal atoms packed?

Back

Preview of the front of card 4

Card 5

Front

How are metal atoms held together?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Structure and bonding resources »