Metallic Bonding Flashcards
1
Q
Metallic bonding
A
Involves delocalised electrons
2
Q
Why are most metals solid at room temperature?
A
Electrostatic forces between metal atoms and delocalised sea of electrons are very strong so lots of energy needed to be broken
3
Q
Why are metals good conductors of electricity and heat?
A
Delocalised electrons carry electrical current and heat through whole structure
4
Q
Why are most metals malleable?
A
Layers of atoms can slide over each other
5
Q
Malleable
A
Can be bent, hammered or rolled into flat sheets
6
Q
Why are alloys harder than pure metals?
A
When another metal mixed with a pure metal, new metal atoms will distort layers so harder for layers to slide over each other
7
Q
Alloy
A
A mixture of 2 or more metals or a metal and another element
