(2) Dipole Dipole Forces of Attraction - Intermolecular Forces

Dipole-dipole force

An intermolecular force that occurs between polar molecules, where the positive end of one molecule is attracted to the negative end of another molecule.

Ion

A single particle with a net positive or negative charge, attracted to opposite charges.

Dipole

A polarized object with separation of charge, having a positive end and a negative end.

Polar atom

An atom with different regions of charge, resulting in a dipole.

Polar molecule

A molecule with partial positive and partial negative charges, resulting in a dipole.

Dipole-dipole interaction

The force of attraction between two polar molecules, based on the interaction of their dipoles.

Intramolecular force

A force that occurs within a molecule, such as a covalent bond.

Electronegativity

The measure of an atom's ability to attract electrons in a chemical bond.

Polar bond

A bond between atoms with a difference in electronegativity of 0.5 or more, resulting in a dipole.1. Sulfur-oxygen bond:A chemical bond between sulfur and oxygen atoms.

Polar bond

A bond in which there is an unequal sharing of electrons between atoms, resulting in a partial positive and partial negative charge.

Carbon-oxygen bond

A chemical bond between carbon and oxygen atoms.

Dipole moment

A measure of the separation of positive and negative charges in a molecule.

Carbon dioxide (CO2)

A molecule composed of one carbon atom and two oxygen atoms.

Nonpolar

A molecule that has no net dipole moment.

Sulfur dioxide (SO2)

A molecule composed of one sulfur atom and two oxygen atoms.

Bent shape

The molecular geometry of a molecule in which the central atom is surrounded by two bonded atoms and one lone pair, resulting in a bent or V-shaped structure.

Dipole-dipole interactions

Electrostatic forces of attraction between polar molecules.