ΔEN Classification

Question 1

What type of bond forms when ΔEN = 0?

Answer 1

Pure covalent bond.

Question 2

How are electrons shared in a pure covalent bond?

Answer 2

Completely evenly.

Question 3

What type of bond forms when 0 < ΔEN < 0.5?

Answer 3

Nonpolar covalent bond.

Question 3

How are electrons shared in a nonpolar covalent bond?

Answer 3

Almost evenly.

Question 4

What type of bond forms when 0.5 < ΔEN < 1.7?

Answer 4

Polar covalent bond.

Question 5

How are electrons shared in a polar covalent bond?

Answer 5

Unevenly.

Question 5

What type of bond forms when ΔEN > 1.7?

Answer 5

Ionic bond.

Question 6

Are electrons shared in an ionic bond?

Answer 6

No. Electrons are transferred.

Question 7

When calculating ΔEN, why do we use absolute value?

Answer 7

Because we only care about the size of the difference, not which atom is larger.

Question 8

When calculating ΔEN, how do we treat double and triple bonds?

Answer 8

The same as single bonds.