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A molecular orbit lower in energy than any of the atomic orbitals from which it is derived, lends stability to a molecule or ion when populated with electron.

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Coordination Compound or Complex

A compound containing coordinate covalent bonds.

Composition Stoichiometry

Descibes the quantitative (mass) relationships among elements in compounds.

Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Ostwald Process

A process for the industrial production of nitrogen oxide and nitric acid from ammonia and oxygen.

Specific Heat

The amount of heat required to raise the temperature of one gram of substance one degree Celsius.

Periodic Table of Elements

An arrangement of elements in order of increasing atomic numbers that also emphasizes periodicity.

Reactants

Substances consumed in a chemical reaction.

Actinides

Elements 89 to 103 (between lawrencium and actinium) on the periodic table. Only the first four have been found in nature in appreciable amounts. The remainder have been produced synthetically.

Displacement Reactions

Reactions in which one element displaces another from a compound.

 

Central Atom

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