Metallic bonding

Question 1

Why do metals behave differently to non metals and compounds?

Answer 1

Due to their metallic bonding

Question 2

What are the properties of all materials determined by?

Answer 2

The types of atoms present
The types of bonding between the atoms
The way the atoms are packed together

Question 3

What is the benefit of having a strong metallic bond?

Answer 3

High melting and boiling points

Question 4

Metals are giant structures with a … of free electrons

Answer 4

Sea

Question 5

How can metals conduct heat and electricity?

Answer 5

The electrons are free/delocalised so can move around

Question 6

A lot of … is needed to break metallic bonds

Answer 6

Energy

Question 8

What happens to the number of free electrons as you move across the periodic table from left to right?

Answer 8

The number of free electrons increases

This increase in free electrons affects physical properties like melting and boiling points.

Question 9

How do melting and boiling points change as the number of free electrons increases?

Answer 9

Melting and boiling points increase

This is due to the increased attraction between positive ions and free electrons.

Question 10

What is the reason for the increase in melting and boiling points across the periodic table?

Answer 10

Increased attraction between positive ions and free electrons

This attraction strengthens as more free electrons are present.