Metallic Structure

Question 1

Metal properties are all due to …

Answer 1

FREE ELECTRONS

Question 2

> Metals consist of a …

>Metalic Bonds involve ‘ … ‘ which produce all the properties of atoms which come from?

Answer 2

> Giant structure.
‘ FREE ELECTRONS ‘
These delocalised electrons ( free electrons ) come from the outer shell of every metal atom in the structure.

Question 3

What are Delocalised Electrons?

Answer 3

Electrons which are FREE TO MOVE through the whole structure so metals are GOOD CONDUCTORS of HEAT and ELECTRICITY.

Question 4

> What do Delocalised Electrons do?

>How do they do this?

Answer 4

> Electrons hold the atoms together in a regular structure.

>They do this because there is a strong ELECTROSTATIC force between the POSITIVE metal ions and the NEGATIVE electrons.

Question 5

Delocalised Electrons have a regular structure and a strong force of electrostatic attraction. This allows them to do what?

Answer 5

Due to a regular structure and a strong electrostatic force the layers of atoms are able to slide over eachother allowing metals to be BENT and SHAPED

Question 6

What is an Alloy?

Answer 6

Alloys are a mixture of two or more metals together. This means that they will have the properties desired.

Question 7

Why do different elements have different … ?

Answer 7

Sized ATOMS

Question 8

What happens to elements when different metals are mixed?

Answer 8

When metals are mixed the new metal atoms wil distort the layers of metal atoms, making it MORE DIFFICULT for atoms to SLIDE OVER EACHOTHER

!!THIS MAKES ALLOYS HARDER!!