Question 1

Arrange the following atoms in order of increasing electronegativity: Cl, F, Br.

Accepted Answer

Br, Cl, F

Question 2

Which electronegativity difference corresponds to a nonpolar covalent bond?

Accepted Answer

$$0.0 to$$ $$0.4$$

Question 3

Which electronegativity difference would you expect for a polar covalent bond?

Accepted Answer

$$0.5 to$$ $$1.8$$

Question 4

Predict the type of bond between potassium (K) and chlorine (Cl).

Accepted Answer

Ionic

Question 5

Which of the following bonds is most likely to be nonpolar covalent?

Accepted Answer

I and I

Question 6

For the bond between N and F, which atom is partially negative and which is partially positive? Indicate the direction of the dipole.

Accepted Answer

N is $$\delta^+$$, F is $$\delta^-$$; arrow points from N to F

Question 7

Which of the following bonds is best described as polar covalent?

Accepted Answer

Si and O

Question 8

Arrange the following atoms in order of increasing electronegativity: B, O, N.

Accepted Answer

B, N, O

Question 9

Which of the following bonds would have the largest dipole moment?

Accepted Answer

Li and F

Question 10

For the bond between C and O, indicate the positive and negative ends and the direction of the dipole.

Accepted Answer

C is $$\delta^+$$, O is $$\delta^-$$; arrow points from C to O

Question 11

Which of the following bonds is most likely to be ionic?

Accepted Answer

Mg and F

Question 12

A patient is exposed to a compound containing S and F. What type of bond is expected between S and F, and what is the direction of the dipole?

Accepted Answer

Polar covalent; S is $$\delta^+$$, F is $$\delta^-$$; arrow points from S to F

Question 13

Which of the following sets is correctly arranged in order of increasing electronegativity?

Accepted Answer

Mg, S, F

Question 14

For the bond between P and Cl, which atom is partially negative and what is the direction of the dipole?

Accepted Answer

Cl is $$\delta^-$$; arrow points from P to Cl

Question 15

A chemist analyzes a bond with an electronegativity difference of $$2.1. $$What type of bond is this?

Accepted Answer

Ionic

Question 16

Which of the following bonds is most likely to be polar covalent?

Accepted Answer

Br and F

Question 17

For the bond between N and P, which atom is more electronegative and what is the direction of the dipole?

Accepted Answer

N is more electronegative; arrow points from P to N

Question 18

A bond between two identical atoms will always be:

Accepted Answer

Nonpolar covalent

Question 19

Which of the following bonds would you expect to have the smallest dipole moment?

Accepted Answer

I and I

Question 20

A nurse is preparing a solution containing Li and O. What type of bond is expected between Li and O?

Accepted Answer

Ionic

Electronegativity, Bond Polarity, and Dipoles in Ionic and Molecular Compounds

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