SCH3U Bonding Quiz

Question 1

What is the purpose of bonding?

Answer 1

The purpose is to acheive stability (stable octet).

Question 2

Explain what pure covalent bonds are and their method of bonding.

Answer 2

Non-metal atoms only bond through equal sharing of electrons.

Question 3

Explain what polar covalent bonds are and their method of bonding.

Answer 3

Electrons are unequally shared. The more electronegative atom has the greater pull of the electron.

Question 4

Explain what ionic bonds are and their method of bonding.

Answer 4

The transfer of electrons from a metal to a non-metal ion. The electrostatic attraction of the two oppositely charged ions bonds them together.

Question 5

Explain what metallic bonds are and their method of bonding.

Answer 5

Metal cations and electrons float in a sea.

Question 6

What are polar molecules? What are the qualifications for a molecule to be polar?

Answer 6

They are asymmetrically shaped molecules and have at least 1 polar covalent bond.

Question 7

What is range of ΔEN of Pure covalent bonds?

Answer 7

0-0.5

Question 8

What is the range of ΔEN for polar covalent bonds?

Answer 8

0.5-1.7

Question 9

What is the range of ΔEN of ionic bonds?

Answer 9

1.7 to 3.3

Question 10

Name the 5 shapes of polar molecules.

Answer 10

Linear, angular or bent, trigomal planar, trigomal pyramidal, tetrahedral.