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Different forms of the same element in the same physical state.

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Ferromagnetism

The ability of a substance to become permanently magnetized by exposure to an external magnetic field.

Weak Field Ligand

A Ligand that exerts a weak crystal or ligand field and ge- nerally forms high spin complexes with metals.

Electronegativity

A measure of the relative tendency of an atom to attract electrons to itself when chemically combined with another atom.

Pairing Energy

Energy required to pair two electrons in the same orbital.

Ideal Gas

A hypothetical gas that obeys exactly all postulates of the kinetic-molecular theory.

 

Electrolyte

A substance whose aqueous solutions conduct electricity.

 

Central Atom

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

Substitution Reaction

A reaction in which an atom or a group of atoms is replaced by another atom or group of atoms.

Law of Partial Pressures (Dalton's Law)

The total pressure exerted by a mixture of gases is the sum of the partial pressures of the individual gases.

Nonelectrolyte

A substance whose aqueous solutions do not conduct electricity.