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Nuclide that undergoes nuclear decay.

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Beta Particle

Electron emitted from the nucleus when a neuton decays to a proton and an electron.

Enzyme

A protein that acts as a catalyst in biological systems.

Half-Cell

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

Denaturation

A process pertaining to a change in structure of a protein form regular to irregular arrangement of the polypeptide chains.

Electrical Conductivity

Ability to conduct electricity.

Hard Water

Water containing Fe3+, Ca2+, and Mg2+ ions, which forms precipates with soap.

xenon trioxide

A colorless, nonvolatile solid, XeO3, explosive when dry: in solution it is called xenic acid.

Square Planar

A term used to describe molecules and polyatomic ions that have one atom in the center and four atoms at the corners of a square.

Electrodes

Surfaces upon which oxidation and reduction half-reactions, occur in electrochemical cells.

Homogeneous Equilibria

Equilibria involving only one species in a single phase. For example, all gases, all liquids or all solids.