Metallic bonding Flashcards
What is metallic bonding?
Metallic bonding can be described as close packed positive metallic ions in a “sea” of delocalized negative electrons. The positive ions and the negative delocalized electrons create an electrostatic attraction that acts in an all 3-dimensions, strongly holding the lattice together. This strong attraction is called the metallic bond.
What are the properties of metal elements that can be related to the bonding?
Metals have high or very high melting points
Metals are malleable and ductile.
All metals are conductors of electricity
Why do metals have high or very high melting points?
Metals have high or very high melting points as the strong metallic bond has to be broken on melting.
What is meant by metals are malleable?
They can be hammered into shape e.g. a car body.
What is meant by metals are ductile?
Can be drawn into wires.
Why are metals malleable and ductile?
Metals are malleable and ductile as the attractive forces of the metallic bond act in all directions.
Why can metals conduct electricity?
All metals are the conductors of electricity as the electrons are free to move throughout the metal lattice.
Give the name of a metal which is not a solid at room temperature?
Mercury
What is a lattice?
Lattice means a regular three dimensional arrangement of particles.