Question

Which combination is more polar bond: K and F, C and S or Ca and O

Answer 1

do you know what a polar bond is?

Answer 2

yeah learned it today but confused

Answer 3

I got K and F, is that right, please help .

Answer 4

Those with the biggest difference in electronegativity is the more polar. This is due to the ability of the more electronegative atom to take electron density from another atom and hence creating a dipole.

Answer 5

Yes I understand that concept :) Reviewed and did the question again and I got K and F with a greater difference in electronegativity. But just to double check.