5.2.1.5 metallic bonding

Question 1

What is an alloy

Answer 1

A mixture of two or more elements, at least one of which is a metal

Question 2

What does a metallic bond consist of?

Answer 2

In a metallic structure there are strong electrostatic forces of attraction between the negatively charged electrons and the positively charged metal ions.
These strong forces require large amounts of energy in order to break, meaning metals often have high melting and boiling points.

Question 3

State properties of metallic bonding

Answer 3

Good conductors of thermal and electrical energy
Malleable

Question 4

Why are metals malleable

Answer 4

The metals are made up of a regular arrangement of atoms. They are able to slide over each other, making the metal malleable.

Question 5

Why are metals good conductors of electrical and thermal energy?

Answer 5

Free electrons can move from one metal ion to the other. These delocalised electrons carry electrical charge/ thermal energy through the structure

Question 6

Does metallic bonding happen between two metals, two non metals or a non metal and a metal?

Answer 6

Two metals