Ionic Compounds (Chapter 5)

Question 1

What are some properties of ionic compounds?

Answer 1

1. They exist as a crystal lattice (not as molecules)
2. They have strong bonds
3. They have high melting/boiling points
4. They conduct electricity in water & solutions
5. They don’t conduct electricity as solids
6. They’re hard
7. They’re brittle

Question 2

Which ion has a positive charge?

Answer 2

cation

Question 3

Which ion has a negative charge?

Answer 3

anion

Question 4

Which ion is smaller than the parent atom?

Answer 4

cation

Question 5

Which ion is bigger than the parent atom?

Answer 5

anion

Question 6

List the process of ionic bonding

Answer 6

1. Transfer of electrons
2. Attraction of opposite charges
3. Lattice energy released
4. Crystal lattice forms

Question 7

Define lattice energy

Answer 7

The large amount of energy that’s released once two ions form ionic bonds with each other (Ex: energy released after Na+ & Cl- combine to form NaCl)

Question 8

Would a higher lattice energy indicate more or less stability of a compound?

Answer 8

More stability of a compound

Question 9

Would a lower lattice energy indicate a higher or lower melting/boiling point?

Answer 9

A lower melting/boiling point