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Particles comprising the nucleus, protons and neutrons.

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Solubility Product Constant

Equilibrium constant that applies to the dissolution of a slightly soluble compound.

Nitrogen Cycle

The complex series of reactions by which nitrogen is slowly but continually recycled in the atmosphere, lithosphere and hydrosphere.

 

Ternary Compound

A compound consisting of three elements, may be ionic or covalent.

Free Radical

A highly reactive chemical species carrying no charge and having a single unpaired electron in an orbital.

London Forces

Very weak and very short-range attractive forces between short-lived temporary (induced) dipoles, also called dispersion Forces.

Eluate

Solvent (or mobile phase) which passes through a chromatographic column and removes the sample components from the stationary phase.

Hydrophilic Colloids

Colloidal particles that repel water molecules.

Coulometry

The quantitative application of Faraday's Law to the analysis of materials. The current and time are the usual variables measured.

Free Energy Change

The indicator of spontaneity of a process at constnt T and P. If delta-G is negative, the process is spontaneous.

Optical Isomers

Stereoisomers that differ only by being nonsuperimposable mirror images of each other, like right and left hands, also called enantiomers.