Chapter 3- Ionic Bonding

Question 1

What subtances are apart of ionic compounds?

Answer 1

Metals and non-metals are joined by ionic bonds

Question 2

Which elements to ions want to be like?

Answer 2

The noble gases

Question 3

What do all atoms want?

Answer 3

Stability

Question 4

What atoms are free atoms?

Answer 4

The Nobel Gases

Question 5

What makes an atom stable?

Answer 5

Having a full valance shell with electrons

Question 6

What are the ways in which atoms can become stable?

Answer 6

• By sharing electrons

- By gaining or loosing electrons

Question 7

What are the three types of chemical bonds?

Answer 7

Ionic
Covalent
Metallaic

Question 8

What happens when atoms loose electrons

Answer 8

An atom that has lost electrons has an overall positive charge and is called a cation

Question 9

What happens when an atom gains electrons

Answer 9

An atom that has gained electrons has an overall negative charge and is called an anion

Question 10

What is another name for an ionic compound?

Answer 10

Salt

Question 11

What produces the ionic bond?

Answer 11

An ionic bond is produced when atoms are oppositely charged and there attraction, which is called electrostatic attraction produces an ionic bond.

Question 12

What shape are ionic compunds in?

Answer 12

Network lattices with each cation surrounded by an anion and each anion surrounded by a cation

Question 13

What are some properties of ionic substances?

Answer 13

• Hard
• Brittle
• Solid at room temperature

Question 14

What dimension are ionic substances?

Answer 14

Three Dimensional

Question 15

What are ionic lattices held together with?

Answer 15

Electrstatic attraction

Question 16

What is an empirical formula?

Answer 16

A ratio given to each ionic compound

Question 17

Why are ionic compounds crystals?

Answer 17

Due to the repeating arrangement of ions.

Question 18

What is the boiling point like for ionic compounds?

Answer 18

Have a high/melting/boiling point making it harder to seperate the ions.

Question 19

Do ionic compounds conduct electricity in the solid form?

Answer 19

No

Question 20

What substance can ionic compounds conduct electricity in?

Answer 20

Aqueous solutions

Question 21

What do ionic compounds do when placed in water?

Answer 21

They dissolve in water to form ions this is due to the water molecules being able to move between the ions.

Question 22

What happens when an ionic compound is placed in a molten solution?

Answer 22

Ions are able to conduct electricty due to the ions being able to slide past one another

Question 23

Define an electrolyte

Answer 23

Ions that are free to move, they can either by a molten ionic compound or an aqueous solution of an ionic compound.

Question 24

Define Binary Ionic compound.

Answer 24

When only two elements are present in a compound

Question 25

Put in order the strongest to weakest types on intramolecular bonding?

Answer 25

1. Covalent
2. Ionic
3. Metalliac

Question 26

Does an ionic compound have a high or low melting point?

Answer 26

High

Question 27

What are the physical properties assoscaited with the bonding model of ionic substances

Answer 27

• Form three dimensional crystalline lattices also known as salts. With alternating anions and cations
• Have high melting points as a large amount of energy is needed to seperate the ions
• Do not conduct electricity in the solid form as charged particles are not allowed to move
• Dissolve in water, water molecules can move inbetween ions

Question 28

In the molten form why is it that ionic compounds can conduct electricity?

Answer 28

Ions are able to slide past one another

Question 29

Why are ionic lattices brittle?

Answer 29

Pressure causes charges to align resulting in shattering