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Assumes that electron pairs are arranged around the central element of a molecule or polyatomic ion so that there is maximum separation (and minimum repulsion) among regions of high electron density.

 

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Electromotive Series

The relative order of tendencies for elements and their simple ions to act as oxidizing or reducing agents, also called the activity series.

Strong Electrolyte

A substance that conducts electricity well in a dilute aqueous solution.

 

Domain

A cluster of atoms in a ferromagnetic substance, all of which align in the same direction in the presence of an external magnetic field.

Electron

A subatomic particle having a mass of 0.00054858 amu and a charge of 1-.

Salinometer

An instrument for measuring the amount of salt in a solution. Also,"salimeter, salometer."

Conjugated Double Bonds

Double bonds that are separated from each other by one single bond -C=C-C=C-.

Sigma Orbital

Molecular orbital resulting from head-on overlap of two atomic orbitals.

yield

The quantity of product formed by the interaction of two or more substances, generally expressed as a percentage of the quantity obtained to that theoretically obtainable.

xanthate

A salt or ester of xanthic acid. Many xanthates have a yellow color. Xanthates are used as flotation agents in mineral processing.

Extrapolate

To estimate the value of a result outside the range of a series of known values. Technique used in standard additions calibration procedure.