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 corresponds to a polar covalent bond?

Accepted Answer

$$0.5 to$$ $$1.8$$

Question 4

Predict the type of bond formed 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 most likely to be ionic?

Accepted Answer

Li and F

Question 8

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

Accepted Answer

B, N, O

Question 9

Which bond has the largest electronegativity difference?

Accepted Answer

Mg and F

Question 10

Predict the type of bond in S and F.

Accepted Answer

Polar covalent

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

Si and O

Question 13

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

Accepted Answer

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

Question 14

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

Accepted Answer

N and P

Question 15

A patient is given a medication containing a bond between Li and O. What type of bond is this, and what does it suggest about the compound's solubility in water?

Accepted Answer

Ionic; likely highly soluble in water

Question 16

Which of the following best describes the bond in N and S?

Accepted Answer

Nonpolar covalent

Question 17

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

Accepted Answer

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

Question 18

Which of the following bonds would you expect to have the smallest electronegativity difference?

Accepted Answer

N and P

Question 19

A chemist is analyzing a compound with a bond between Si and Br. What type of bond is this, and what does it suggest about the compound's electrical conductivity in water?

Accepted Answer

Polar covalent; likely poor conductor in water

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

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