Metallic Bonding

Question 1

Metallic Bonding

Answer 1

Bonding between the sea of delocalised electrons and positive ions arranged in a lattice.

Question 2

Metal elements structures

Answer 2

Giant Metallic Lattice Structure

Question 3

Describe structure of metallic bonding

Answer 3

The outermost shell of electrons of a metal atom is delocalised- the electrons are free to move about the metal leaving a positive metal ion.

The positive metal ions are attracted to the delocalised negative electrons

Question 4

Explain why metals have high melting points

Answer 4

Because of the strong electrostatic attractions between the positive metal ions and the delocalised sea of electrons

Question 5

Explain why the number of delocalised electrons per atom affects the melting point

Answer 5

The more delocalised electrons there are, the stronger the bonding will be and the higher the melting point

Question 6

Explain why metals are good thermal conductors

Answer 6

The delocalised electrons can pass kinetic energy to each other

Question 7

Explain why metals are good electrical conductors

Answer 7

The delocalised electrons can move and carry a current

Question 8

Explain why metals are insoluble

Answer 8

Because of the strength of the metallic bonds

except in liquid metals