11.5 Molecular Shape and Polarity

polar, nonpolar

If a diatomic molecule has a polar bond, the molecule as a whole is ______ (polar/nonpolar). If a diatomic molecule has a nonpolar bond, the molecule as a whole is ______ (polar/nonpolar).

polar

Polyatomic molecules are _____ (polar/nonpolar) if individual polar bonds sum together to net dipole moment.

magnitude, direction

Dipole moments can cancel each other because they are vector quantities - they have both ___________ and ___________.

more

Each polar bond can be treated as a vector pointing in the direction of the _____ (more/less) electronegative atom.

electronegativity difference

Each polar bond can be treated as a vector with a magnitude proportional to the _______________________ between bonding atoms.