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Elements 58 to 71 (after lanthanum).

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Heisenberg Uncertainty Principle

It is impossible to determine accurately both the momentum and position of an electron simultaneously.

Chemical Equation

Description of a chemical reaction by placing the formulas of the reactants on the left and the formulas of products on the right of an arrow.

Alkylbenzene

A compound containing an alkyl group bonded to a benzene ring.

Composition Stoichiometry

Descibes the quantitative (mass) relationships among elements in compounds.

Equivalence Point

The point at which chemically equivalent amounts of reactants have reacted.

Leveling Effect

Effect by which all acids stronger than the acid that is characteristic of the solvent react with solvent to produce that acid, similar statement applies to bases. The strongest acid (base) that can exist in a given solvent is the acid (base) characteristic of the solvent.

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.

Periodic Table

An arrangement of elements in order of increasing atomic numbers that also emphasizes periodicity.

Titration

A Procedure in which one solution is added to another solution until the chemical reaction between the two solutes is complete, the concentration of one solution is known and that of the other is unknown.

 

Polydentate

Refers to ligands with more than one donor atom.