Metallic Bonding Flashcards
Why do metallic substances have high boiling points?
Strong electrostatic attraction between the metal ion and the delocalised electrons so needs a lot of energy to break
Why do metallic substances have good electrical conductivity?
Delocalised electrons can carry charge and move freely through the metal
Why are metallic substances good thermal conductors?
When a metal is heated the delocalised electrons gain kinetic energy and move faster , this movement transfers the gained energy through the metal
Why are metallic substances malleable?
Pure metals are soft. The layers of metal ions are able to slide.
Definition of alloys
A mixture of two or more different metals. Not a compound because the metals do not react together
The other metal distorts the layers so they can’t slide over eachother easily
Now the alloy is harder
