3.2 Covalent Bonding

What is the process by which atoms form covalent bonds?

• Transferring electrons

• Absorbing neutrons

• Sharing electrons

• Sharing protons

What is the name of the diagram used to represent the sharing of electrons in covalent bonds?

• Dot and Circle diagram

• Cross and Square diagram

• Circle and Line diagram

• Dot and Cross diagram

What is the downside of using displayed formulas to represent covalent molecules?

• They are not widely accepted

• They are not accurate

• They don't show the 3D shape of the molecule

• They are difficult to draw

What are polymers made up of?

• Ions

• Monomers

• Molecules

• Atoms

What are the examples of simple molecular substances?

• Graphite

• Sodium chloride

• Water

• Oxygen

What are giant covalent structures made up of?

• Repeating units

• Regular lattice

• Long chains

• Small molecules

What are the individual atoms in simple molecular substances joined by?

• Intermolecular forces

• Metallic bonds

• Covalent bonds

• Ionic bonds

What is the maximum number of electrons that hydrogen can hold in its first energy level?

• 6

• 2

• 10

• 8

What is the molecular formula of ammonia?

• NH₃

• H₂O

• CH₄

• NH₄⁺

What is the reason for atoms to transfer electrons in ionic bonding?

• To get a full outer shell

• To form a strong bond

• To become positively charged

• To increase the number of protons