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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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Percent by Mass

100% times the actual yield divided by theoretical yield.

Graham's Law

The rates of effusion of gases are inversely proportional to the square roots of their molecular weights or densities.

Inert s-pair Effect

Characteristic of the post-transition minerals, tendency of the outermost s electrons to remain nonionized or un shared in compounds.

Percent Purity

The percent of a specified compound or element in an impure sample.

Dextrorotatory

Refers to an optically active substance that rotates the plane of plane polarized light clockwise, also called dextro.

Emission Spectrum

Spectrum associated with emission of electromagnetic radiation by atoms (or other species) resulting from electronic transitions from higher to lower energy states.

 

Mother Nuclide

Nuclide that undergoes nuclear decay.

Overlap

The interaction of orbitals on different atoms in the same region of space.

Kinetic-molecular Theory

A theory, that attempts to explain macroscopic observations on gases in microscopic observations on gases in microscopic observations on gases in microscopic or molecular terms.

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.