Alloys Flashcards
1
Q
What is an alloy?
A
A mixture of two or more elements where one is a metal.
2
Q
Why are alloys harder than pure metals?
A
The ions are different sizes and electrons are delocalised.
3
Q
What is the structure of a metal?
A
Giant lattice structure with positive ions and delocalised electrons.
4
Q
What are isotopes?
A
Atoms of the same element with same number of protons but different number of neutrons.
For example: 12C has 6 neutrons. 14C has 8 neutrons.
5
Q
How many carbon atoms do carbon atoms bond to in graphite?
A
3
