Chapter 6: Chemical Bonding (Pt 1)

Question 1

Define ionic bonding (mentals&non-metals)

Answer 1

Atoms lose or gain electrons to form a fully filled valence shell / electronic configuration

Question 2

Define covalent bonding (2 non-metals)

Answer 2

Atoms share electrons to form a fully filled valence shell / electronic configuration

Question 3

What are cations

Answer 3

Cations are atoms of metals that lose electrons to form a positively-charged ion to achieve a fully-filled valence shell

Question 4

What are anions

Answer 4

Anions are atoms of non-metals that gain electrons to form a negatively-charged ion to achieve a fully filled valence shell

Question 5

What is the structure of ionic compounds

Answer 5

It forms a giant ionic lattice structure. It is held together by strong electrostatic forces of attraction between ions

Question 6

What are the physical properties of ionic bonding

Answer 6

1. High melting and boiling point
2. Soluble in water
3. Conduct electricity in molten and aqueous solution only

Question 7

Explain why it has high melting and boiling point

Answer 7

1. Forms a giant ionic lattice structure. Held together by strong electrostatic forces of attraction between ionics
2. Large amount of energy is needed to overcome these strong electrostatic forces of attraction
3. Thus high melting and boiling point

Question 8

Explain why it cannot conduct electricity in solid state?

Answer 8

• It requires the movement of ions. Solid vibrate about in fixed positions, thus no free-moving ions