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Compounds that contain at least one atom (other than H) that shares fewer than eight electrons.

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Alkylbenzene

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

Dynamic Equilibrium

An equilibrium in which processes occur continuously, with no net change. When two (or more) processes occur at the same rate so that no net change occurs.

Lewis Acid

Any species that can accept a share in an electron pair.

Background Radiation

Ratiation extraneous to an experiment. Usually the low-level natural radiation form cosmic rays and trace radioactive substances present in our environment.

Stereoisomers

Isomers that differ only in the way that atoms are oriented in space, consist of geometrical and optical isomers.

 

Molecular Geometry

The arrangement of atoms (not lone pairs of electrons) around a central atom of a molecule or polyatomic ion.

Specific Gravity

The ratio of the density of a substance to the density of water.

Mechanism

The sequence of steps by which reactants are converted into products.

Coulometry

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

Nuclear Fission

The process in which a heavy nucleus splits into nuclei of intermediate masses and one or more protons are emitted.