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An atom in a molecule or polyatomic ion that is bonded to more than one other atom.

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Heat of Vaporization

The amount of heat required to vaporize one gram of a liquid at its boiling point with no change in temperature. Usually expressed in J/g. The molar heat of vaporization is the amount of heat required to vaporize one mole of liquid at its boiling point with no change in temperature and usually expressed ion kJ/mol.

Metallic Conduction

Conduction of electrical current through a metal or along a metallic surface.

Oxidation

An algebraic increase in the oxidation number, may correspond to a loss of electrons.

Phenol

Hydrocarbon derivative containing an [OH] group bound to an aromatic raing.

 

Periodicity

Regular periodic variations of properties of elements with atomic number (and position in the periodic table).

Hydrocarbons

Compounds that contain only carbon and hydrogen.

Mechanism

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

Crystalline Solid

A solid characterized by a regular, ordered arrangement of particles.

Coefficient of expansion

The ratio of the change in length or volumen of a body to the original lengthor volume for a unit change in temperature.

Optical Isomers

Stereoisomers that differ only by being nonsuperimposable mirror images of each other, like right and left hands, also called enantiomers.