5.2.1.4 Covalent Bonding

Question 1

How are covalent bonds formed?

Answer 1

• atoms sharing a pair of electrons
• bonds are very strong

Question 2

What do covalently bonded substances consist of?

Answer 2

• small molecules
• on occasion, very large molecules
• other times, giant covalent structures

Question 3

What is an example of a very large molecule in a covalently bonded substance?

Answer 3

• polymers; a substance made from long chains of repeating groups of atoms

Question 4

What is an example of a giant covalent structure in a covalently bonded substance?

Answer 4

• diamond
• silicon dioxide (SiO2)