Metals Flashcards
What does conduction depend on
The ability of electrons to move through the metal
Why can metals be bent and shaped
Layers of metals are able to slide over each other
Layers of metals can slide over each other what properties does this give them
They can be bent and shaped
What is an alloy
A substance which is made from two different types of metal
What are alloys made of
Two or more different metals
Why are alloys harder than pure metals ?
Because the atoms are different sizes so it’s more difficult for them to slide over each other
What are shape memory alloys
Alloys that can return to their original shape after being deformed
What is an example of a shape memory alloy
Nitinol
Used in dental braces
Why do metals conduct heat and electricity
Because of delocalised electrons in their structure
