A bond with negative end and a positive end
No its not polar
It is a polar molecule and has polar bonds.
Polar contains polar. Non-polar contains nothing.
Polar
Polar
Nonpolar
ClO4 is polar.
polar
It is Polar
PBr3 is non-polar: the dipole moment of PBr3 is zero and therefor it is non-polar.
polar
Polar Polar