Matter, Trends, & Bonding - Forces

Intramolecular forces

(Intra - "within") Strong bonds that hold a molecule together, includes ionic and covalent bonds.

Intermolecular forces

(Inter - "between") Attractive forces between molecules. Weaker than intramolecular forces.

Hydrogen bonding

Attractive force between the hydrogen attached to an electronegative atom of the molecule and an electronegative atom of a different molecule.

Dipole-dipole force

The attraction between the positive of one molecule and the negative end of another molecule.

Dispersion forces

Forces that are temporarily created by the attraction of the nucleus to electrons of other molecules.

Boiling point

The temperature at which a compound changes from liquid to gas.

Melting point

The temperature at which a compound changes from solid to liquid.

A low boiling/melting point means that the forces between particles are _____________

weaker

A high boiling/melting point means that the forces between particles are _____________

stronger