Metallic Bonding Flashcards
What is metallic bonding?
Positive ions in a regular arrangement and a sea of delocalised electrons that can move through the structure. Positive ions and electrons attract each other. Sharing delocalised electrons means metallic bonds are very strong
Why do metals have high melting and boiling points?
It takes a lot of heat energy to break the strong attraction between metal ions and delocalised electrons
Why are metals malleable and ductile?
Malleable - layers slide over each other but still maintain the metallic bonds
Ductile - atoms are arranged in layers that can slide over each other
Why are metals good conductors of electricity?
There are delocalised electrons that can move throughout the structure and carry an electrical charge. When a potencial difference is applied the electrons all move in the same direction
Why are metals good thermal conductors?
the delocalised electrons can move through the structure very quickly and transfer the heat. The atoms vibrate and pass the heat energy to neighbouring atoms.
