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Refers to species that have only six electrons in the highest energy level of the central element (many Lewis acids).

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Secondary Voltaic Cells

Voltaic cells that can be recharged, original reactanats can be regenerated be reversing the direction of the current flow.

DP number

The degree of polymerization, the average number of monomer units per polymer unit.

Haber Process

A process for the catalyzed industrial production of ammonia from N2 and H2 at high temperature and pressure.

Double Salt

Solid consisting of two co-crystallized salts.

 

Film badge

A small patch of photographic film worn on clothing to detect and measure accumulated incident ionizing radiation.

Hydrogen-Oxygen Fuel Cell

Fuel cell in which hydrogen is the fuel (reducing agent) and oxygen is the oxidizing agent.

 

Basic Anhydride

The oxide of a metal that reacts with water to form a base.

Nuclides

Refers to different atomic forms of all elements in contrast to ?isotopes?, which refer only to different atomic forms of a single element.

Magnetic Quantum Number (mc)

Quantum mechanical solution to a wave equation that designates the particular orbital within a given set (s, p, d, f ) in which a electron resides.

Isomers

Different substances that have the same formula.