Metallic bonding Flashcards
Why are metals hard to break?
Because there is a strong attraction between the positive ions in the regular lattice and the delocalised electrons.
Why do metallic bonds have a high melting point?
A lot of energy is required to break the strong metallic bonds because there are strong forces of electrostatic attraction between the positive ions and the delocalised electrons in the giant structure.
Why do metals conduct electricity?
They contain delocalised electrons which move and carry charge.
Why are metals malleable and ductile?
The layers of ions can slide over each other without the metallic bonds breaking as the delocalised electrons still attract the ions.
Why are most ionic bonds soluble?
Water molecules surround the ions in solution because they are attracted by the charges of the ions.
What is an alloy?
An alloy is a mixture of two or more elements at least one of which is a metal and the resulting mixture has metallic properties.
