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A compound consisting of three elements, may be ionic or covalent.

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Osmosis

The process by which solvent molecules pass through a semipermable membrane from a dilute solution into a more concentrated solution.

 

Alkyl Group

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

Entropy

A thermodynamic state or property that measures the degree of disorder or randomness of a system.

Monoprotic Acid

Acid that can form only one hydronium ion per molecule, may be strong or weak. Acid that contains one ionizable hydrogen atom per formula unit.

Stereoisomers

Isomers that differ only in the way that atoms are oriented in space, consist of geometrical and optical isomers.

 

Half-Cell

Compartment in which the oxidation or reduction half-reaction occurs in a voltaic cell.

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.

Atomic Radius

Radius of an atom.

Critical Mass

The minimum mass of a particular fissionable nuclide in a given volume required to sustain a nuclear chain reaction.

Atom

The smallest particle of an element.