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A protein that acts as a catalyst in biological systems.

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D-Orbitals

Beginning in the third energy level, aset of five degenerate orbitals per energy level, higher in energy than s and p orbitals of the same energy level.

 

Reducing Agent

The substance that reduces another substance and is oxidized.

Phosphorus Oxychloride

Colorless to slightly yellow fuming liquid.

Mol. Wt.: 153.39
M.P.: 20C
B.P.: 105.1C
Density: 1.685 @ 15.5C
Vapor Pressure: 40 mm @ 27.3C
Vapor Density: 5.3
Used as the phosphorus source for phosphorus diffusion.

Capillary

A tube having a very small inside diameter.

Polymorphous

Refers to substances that crystallize in more than one crystalline arrangement.

Half-Reaction

Either the oxidation part or the reduction part of a redox reaction.

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Homogeneous Mixture

A mixture which has uniform composition and properties throughout.

Radical

An atom or group of atoms that contains one or more unpaired electrons (usually very reactive species)

Electrolytic Cells

Electrochemical cells in which electrical energy causes nospontaneous redox reactions to occur. An electrochemical cell in which chemical reactions are forced to occur by the application of an outside source of electrical energy.