Topic 4: Bonding

Question 1

What has to happen to an atom if it is to become an ion?

Answer 1

It must loose or gain electrons

Question 2

Why do atoms loose or gain electrons?

Answer 2

So that they have a full outer shell

Question 3

Give three things ions must have:

Answer 3

> A full outer shell
Brackets around the diagram
A charge symbol

Question 4

What is an IONIC BOND?

Answer 4

Occurs between metals and non-metals

Question 5

Fill in the blanks:

The …(1)… charges of the two ions …(2)… each other strongly and requires a lot of energy to break them apart. This …(3)… is called an IONOC BOND

Answer 5

(1) Opposite
(2) Attract
(3) Attraction

Question 6

What is a COVALENT BOND?

Answer 6

Occurs between two non-metals

Question 7

What do atoms do to form a COVALENT BOND?

Answer 7

What they need they share

Question 8

What do atoms do to form an IONIC BOND?

Answer 8

They transfer electrons to create a full outer shell

Question 9

Why is hydrogen described as DIATOMIC?

Answer 9

Because there are two atoms in each molecule

Question 10

Give the definition of a COVALENT BOND:

Answer 10

A COVALENT BOND always results from a shared pair of electrons and is thus very strong