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The absolute entropy of a substance in its standard state at 298 K.

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Formal Charge

A method of counting electrons in a covalently bonded molecule or ion, counts bonding electrons as though they were equally shared between the two atoms.

Band

A series of very closely spaced, nearly continuous molecular orbitals that belong to the crystal as a whole.

Linkage Isomers

Isomers in which a particular ligand bonds to a metal ion through different donor atoms.

 

Element

A substance that cannot be decomposed into simpler substances by chemical means.

Complex Ions

Ions resulting from the formation of coordinate covalent bonds between simple ions and other ions or molecules.

Chemical Bonds

The attractive forces that hold atoms together in elements or compounds.

Alkyl Group

A group of atoms derived from an alkane by the removal of one hydrogen atom.

Spectrochemical Series

Arrangement of ligands in order of increasing ligand field strength.

xylic acid

Any of six colorless, crystalline, isomeric acids having the formula C9H10O2, derived from xylene.

Gamma Ray

High energy electromagnetic radiation. A highly penetrating type of nuclear radiation similar to x-ray radiation, except that it comes from within the nucleus of an atom and has a higher energy. Energywise, very similar to cosmic ray except that cosmic rays originate from outer space.