Metal Properties and Alloys

Question 1

What are the 4 main properties of metals?

Answer 1

1. Strong
2. Malleable
3. Conduct electricity well
4. Conduct heat well

Question 2

Where are the transition metals on the periodic table?

Answer 2

The centre block

Question 3

What 3 things do the properties of metals make them useful for? (state property/ies and use)

Answer 3

1. strength and malleability - bridges and car bodies
2. conduct heat - saucepan base
3. conduct electricity - electrical wires

Question 4

What are the 2 problems with some metals?

Answer 4

1. They corrode

2. Metal fatigue

Question 5

How do metals ‘fatigue’, and why is this bad?

Answer 5

When stresses and strains are repeatedly put on them

Dangerous as structures could break (e.g. planes)

Question 6

How do we solve metal corrosion?

Answer 6

Protecting them i.e. with paint

Question 7

What happens when metals corrode?

Answer 7

They lose their strength and hardness

Question 8

State the properties of copper, and what they make it useful for.

Answer 8

Good CONDUCTOR of ELECTRICITY
HARD and STRONG but also MALLEABLE
DOESN’T react with WATER
-Ideal for drawing out into electrical wires

Question 9

State the properties of aluminium, and what they make it useful for.

Answer 9

Corrosive RESISTANT
LOW DENSITY
Forms strong alloys
-strong, light, malleable- good for airoplanes

Question 10

State the properties of titanium, and what they make it useful for.

Answer 10

LOW DENSITY
STRONG
Corrosion-RESISTANT
-light, won’t react- good for hip replacements

Question 11

What else is copper good for, and why?

Answer 11

Pipes and tanks in plumbing

Malleable, below hydrogen in reactivity series- won’t react with water