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The temperature at which a liquid will yield enough flamable vapour to ignite. There are various recognized industrial testing methods, therefore the method used must be stated.

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Gem-dimethyl group

Two methyl groups of the same carbon atom.

Amine

Derivatives of ammonia in which one or more hydrogen atoms have been replaced by organic groups.

Cyclotron

A device for accelerating charged particles along a spiral path.

Artificial Transmutation

An artificially induced nuclear reaction caused by the bombardment of a nucleus with subatomic particiles or small nucei.

Derivative

A compound that can be imagined to arise from a partent compound by replacement of one atom with another atom or group of atoms. Used extensively in orgainic chemistry to assist in identifying compounds.

Delocalization

Of electrons, refers to bonding electrons that are distributed among more than two atoms that are bonded together, occurs in species that exhibit resonance.
The formation of a set of molecular orbitals that extend over more than two atoms, important in species that valence bond theory describes in terms of resonance.

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Overlap

The interaction of orbitals on different atoms in the same region of space.

Coulometry

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

Aromatic Hydrocarbons

Benzene and its derivatives.