A temporary dipole is a momentary uneven distribution of electrons in an atom or molecule, leading to a brief polarity.
Permanent Dipole: A molecule that has a constant uneven distribution of electrons, resulting in permanent polarity.
A molecule with an overall dipole moment due to the presence of polar bonds arranged asymmetrically.
Van der Waals Forces: Weak forces of attraction between molecules resulting from temporary shifts in electron density (like temporary dipoles).