Exploring Types of Chemical Bonding

What causes a piece of paper to tear when pulled apart?

• The paper particles are too strong to hold together.

• The force applied is less than the strength of the paper particles.

• The paper particles are bonded by metallic bonds.

• The force applied is greater than the strength of the paper particles.

What is the main reason a steel bar does not break easily?

• The force applied is greater than the strength of the steel particles.

• The steel particles are bonded by ionic bonds.

• The steel particles are bonded by covalent bonds.

• The force applied is less than the strength of the steel particles.

What type of bonding involves the transfer of valence electrons from a metal to a non-metal?

• Covalent bonding

• Metallic bonding

• Hydrogen bonding

• Ionic bonding

What is a cation?

• An ion with a negative charge

• An ion with a positive charge

• A molecule with no charge

• A molecule with both positive and negative charges

Which of the following is a property of ionic compounds?

• Exist as gases

• High melting points

• Poor electrical conductivity

• Low boiling points

What type of bonding involves the sharing of valence electrons between non-metal atoms?

• Covalent bonding

• Metallic bonding

• Hydrogen bonding

• Ionic bonding

Which of the following substances typically exist as diatomic molecules?

• Sodium

• Oxygen

• Iron

• Calcium

What is a characteristic of molecular covalent substances?

• Low boiling points

• Poor electrical conductivity

• Exist as solids

• High melting points

What type of bonding involves the sharing of free electrons among metal atoms?

• Ionic bonding

• Covalent bonding

• Metallic bonding

• Hydrogen bonding

Why are metals good conductors of electricity?

• Because of the transfer of valence electrons

• Because of the low boiling points

• Because of the sharing of free electrons

• Because of the high melting points