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

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Band of Stability

Band containing nonradioactive nuclides in a plot of number of neutrons versus atomic number.

Meniscus

The shape assumed by the surface of a liquid in a cylindrical container.

Oxidation

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

Electron Deficient Compounds

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

Electronic Geometry

The geometric arrangement of orbitals containing the shared and unshared electron pairs surrounding the central atom of a molecule or polyatomic ion.

Reaction Stoichiometry

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

Temperature

A measure of the intensity of heat, i.e. the hotness or coldness of a sample. or object.

Pauli Exclusion Principle

No two electrons in the same atom may have identical sets of four quantum numbers.

Contact Process

Industrial process by which sulfur trioxide and sulfuric acid are produced from sulfur dioxide.

Crystal Field Stabilization Energy

A measure of the net energy of stabilization gained by a metal ion's nonbonding d electrons as a result of complex formation.