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

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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.

van der Waals' Equation

An equation of state that extends the ideal gas law to real gases by inclusion of two empirically determined parameters, which are different for different gases.

Electrolyte

A substance whose aqueous solutions conduct electricity.

 

Coordinate Covalent Bond

A covalent bond in which both shared electrons are donated by the same atom, a bond between a Lewis base and a Lewis acid.

Basic Salt

A salt containing an ionizable OH group.

Kinetic Energy

Energy that matter processes by virtue of its motion.

Neutron

A neutral subatomic particle having a mass of 1.0087 amu.

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.

Natural Radioactivity

Spontaneous decomposition of an atom.

Peroxide

A compound containing oxygen in the -1 oxidation state. Metal peroxides contain the peroxide ion, O22