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Spontaneous decomposition of an atom.

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Vapor

A gas formed by boiling or evaporating a liquid.

Cell Potential

Potential difference, Ecell, between oxidation and reduction half-cells under nonstandard conditions.

 

Moderator

A substance such as hydrogen, deuterium, oxygen or paraffin capable of slowing fast nuetrons upon collision.

Ore

A natural deposit containing a mineral of an element to be extracted.

Strong Field Ligand

Ligand that exerts a strong crystal or ligand electrical field and generally forms low spin complexes with metal ions when possible.

Double Salt

Solid consisting of two co-crystallized salts.

 

Critical Temperature

The temperature above which a gas cannot be liquefied, the temperature above which a substance cannot exhibit distinct gas and liquid phases.

Homologous Series

A series of compounds in which each member differs from the next by a specific number and kind of atoms.

Differential Thermal Analysis (DTA)

A technique for observing the temperature, direction, and magnitude of thermally induced transitions in a material by heating/cooling a sample and comparing its temperature with that of an inert reference material under similar conditions.

Reaction Stoichiometry

Description of the quantitative relationships among substances as they participate in chemical reactions.