Intermolecular Forces

Force that hold atom together within molecule.

Force are due to the alternative between cations and anions (Ionic bonding), nuclei and electron pairs (Covalent bonding)

Forces that exist between ions and molecules.

These forces exist between two interacting molecules

When an anion and nearby polar molecule attract each other.

Is a measure of molecular polarity, given in the unit debye (D) derived from SI units of charge ( columb, C) and length (M)

Occur between oppositely changed poles on polor molecule.

Formed between two polar covalent.

Occurs when H bondend to N, O or F is attracted to the lone pair of N, O, or F in another molecule.

A force that primarily responsible for the condensed states of

nonpolar substances.

-caused by momentary oscillations of electron charge in atoms

and therefore, are present between all particles.

the physicist who explained the

quantum-mechanical basis of the attraction.

-the electron cloud of a particle can distorted.

is due to the distortion of

electron clouds, either adds to the

existing polarity (polar) or creates a

temporary dipole charge (non-polar).

The type of intermolecular forces that exist

between molecules in the liquid state

depends on the nature of the substances.

The interplay of the motions of molecules

and the presence of weak intermolecular

forces explain the characteristic properties

of liquids.