Question

Indicate whether the following molecules are polar or nonpolar.

1. Cl - Cl
2. H - F
3. H- Br
4. I subscript 2

Answer 1

bonds are polar when the electronegativity of the atoms that make the bond are different. When Cl bonds with Cl, both atoms "pull" equally hard on the electrons. When H bonds with F, the pulling is unequal, so the bond is polar.

Answer 2

1. Cl - Cl non polar
2. H-F polar
3. H - Br polar
electronegativity arises when one atom pulls the electron cloud more to its self.

Answer 3

what's the answer for number 4?

Answer 4

I2 is nonpolar

Answer 5

I - I is no polar