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The arrangement of atoms (not lone pairs of electrons) about the central atom of a polyatomic ion.

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Activity Series

A listing of metals (and hydrogen) in order of decreasing activity.

Binary Acid

A binary compound in which H is bonded to one or more of the more electronegative nonmetals.

Chemical Change

A change in which one or more new substances are formed.

High Spin Complex

Crystal field designation for an outer orbital complex, all t2g and eg orbitals are singly occupied before any pairing occurs.

Conduction Band

A partially filled band or a band of vacant energy levels just higher in energy than a filled band, a band within which, or into which, electrons must be promoted to allow electrical conduction to occur in a solid.

Clay

A class of silicate and aluminosilicate minerals with sheet-like structures that have enormous surface areas that can absorb large amounts of water.

Reactants

Substances consumed in a chemical reaction.

Electrophoresis

A technique for separation of ions by rate and direction of migration in an electric field.

Monoprotic Acid

Acid that can form only one hydronium ion per molecule, may be strong or weak. Acid that contains one ionizable hydrogen atom per formula unit.

Rate of Reaction

Change in the concentration of a reactant or product per unit time.