metals

Question 1

why do metalic elements conduct electricity?

Answer 1

They have delocalised electrons

Question 2

Describe metalic structure and use it to explain how a metal conducts electricity

Answer 2

Close packed lattice of posotive metal ions in a sea of delocalised electrons.
They conduct electricity as the electrons are free to move

Question 3

What happens to metal ions durring extraction of metals

Answer 3

Metal ions are reduced forming metal atoms

Question 4

How are aluminium and above extracted from there ore

Answer 4

Electrolysis

Question 5

How is zinc - copper extracted from its ore

Answer 5

Heating with carbon (or carbon monoxide etc)

Question 6

How are gold silver and mercury extracted from there ore

Answer 6

Heating

Question 7

What is electrolysis

Answer 7

The decomposition of an ionic compound into its elements using electricity

Question 8

Wjat must be used if the products of electrolysis are to be identified

Answer 8

d.c power supply

Question 9

What are electrically conducting sollutions containing ions known as?

Answer 9

Electrolytes

Question 10

What can ions move across to complete an electrical circuit?

Answer 10

Ion bridge