___________ a molecule containing two “poles,” or regions of opposite charge.

An intermolecular force of attraction

between two polar molecules.

An intermolecular force of attraction that occurs when a

polar molecule induces polarity in a nonpolar molecule.

___________ a measure of how strongly one atom attracts a shared pair of

electrons. Values range from 0.7 to 4.0, and are unitless.

_____________ a force of attraction between molecules.

__________ a bond formed by the attraction between two oppositely charged ions. These are the most polar type of bond since valence electrons are

completely transferred from one atom to another. These bonds occur if the electronegativity difference is greater than/equal to 1.67.

________________ an intermolecular force of attraction that occurs when a

temporary dipole of one atom induces polarity in a neighboring atom. They form due to random fluctuations in the density of the electron cloud surrounding the nucleus. The weakest type of intermolecular force.

____________ a stable particle composed of two or more atoms.

_____________ – a bond characterized by equal sharing of electrons. The atoms in a bond have the same electronegativity (or a difference less than

or equal to 0.4).

_____________ a charge with an absolute value of less than 1 in regions of polar molecules created by unequal sharing of electron pairs in covalent bonds. They are represented by the Greek lowercase delta (δ+ or δ–). The region where the electron cloud is denser has a δ– charge while the region where the electron cloud is less dense has a δ+ charge.

____________ - a bond characterized by unequal sharing of electrons. The atoms in a bond have an electronegativity difference greater than 0.4 and

less than 1.67. Each of the atoms in the bond will either have a partial positive (δ+)

or a partial negative (δ–) charge.

_______________ - an electron in the outermost energy level of an atom. They take part in chemical bonds when they are transferred or

shared.