Module 2 Chapter 4 Lesson 3 - Ionic Bonding

Question 1

What is ionic bonding?

Answer 1

Electrostatic attraction between oppositely charged atoms.

Question 2

What are the four types of structures?

Answer 2

Giant Ionic Lattice
Giant Covalent Lattice
Simple Molecular Lattice
Giant Metallic Lattice

Question 3

What is the definition of lattice?

Answer 3

Regular repeating structure.

Question 4

How many oppositely charged ions is each ion surrounded by and what is this called?

Answer 4

6
Co - ordination of 6

Question 5

What is bigger in ionic compounds anions or cations?

Answer 5

Anions

Question 6

What explains many physical properties of ionic compounds?

Answer 6

The giant ionic lattice and ionic bonding

Question 7

What state are most ionic compounds at room temperature?

Answer 7

Solids

Question 8

What type of forces require large amounts of energy to overcome in ionic compounds?

Answer 8

Strong electrostatic forces of attraction

Question 9

How does the strength of ionic bonding change with ionic charge?

Answer 9

It increases with ionic charge

Question 10

What effect do more highly charged ions have on ionic attraction?

Answer 10

They create stronger attractions

Question 11

How do melting points vary with ionic charge in ionic compounds?

Answer 11

Higher for lattices containing ions with greater ionic charge

Question 12

What property of ions does not affect the melting point in the given example of Na2O and CaO?

Answer 12

The size of the ions

Question 13

In what type of solvents do many ionic compounds dissolve?

Answer 13

Polar solvents, e.g., water

Question 14

What are the two main factors affecting solubility of ionic compounds?

Answer 14

• Breaking down the ionic lattice
• Attraction between ions and polar solvent molecules

Question 15

What can polar molecules do to the ionic lattice?

Answer 15

Break down or disrupt the ionic lattice

Question 16

What does the δ+ end of a polar molecule surround?

Answer 16

The negative anion

Question 17

What does the δ- end of a polar molecule surround?

Answer 17

The positive cation

Question 18

How does ionic charge generally affect the solubility of ionic compounds?

Answer 18

Greater ionic charge leads to less solubility

Question 19

Do ionic compounds conduct electricity when solid?

Answer 19

No

Question 20

Why do ionic compounds not conduct electricity when solid?

Answer 20

Ions are in fixed positions within the solid lattice

Question 21

When can ionic compounds conduct electricity?

Answer 21

When molten or aqueous

Question 22

Why can ionic compounds conduct electricity when molten or aqueous?

Answer 22

Ions are free to move and carry charge