Metallic

Question 0

Definition of metallic bonding

Answer 0

Lattice/giant structure of positive ions surrounded by a sea of delocalised electrons– Attraction- strong electrostatic forces

Question 1

Examples of metallic elements

Answer 1

Fe, Al, Mg, Ca

Question 2

Electrical conductivity metallic

Answer 2

Delocalised electrons are free to move throughout the structure allowing metals to carry charge and conduct electricity.

Question 3

Malleability/ ductile metallic

Answer 3

Malleable (easily beaten into shape), ductile (easily pulled into wires) - the regular packing makes it simple for the atoms to slide over each other

Question 4

What is an electric current?

Answer 4

A flow of electrons or ions

Question 5

Melting and boiling points of metallic

Answer 5

Quite high– due to strong electrostatic forces of attraction between ions and electrons which require lots of energy to break

Question 6

Solubility in water metallic

Answer 6

Insoluble

Question 7

Diagram example metallic

Answer 7

See sheet