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A dry cell in which the anode is Cd, the cathode is NiO2, and the electrolyte is basic.

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Nernst Equation

Corrects standard electrode potentials for nonstandard conditions.

Cathode

Electrode at which reduction occurs in a cathode ray tube, the negative electrode.

Electrolyte

A substance whose aqueous solutions conduct electricity.

 

Cloud Chamber

A device for observing the paths of speeding particiles as vapor molecules condense on them to form foglike tracks.

Dextrorotatory

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

Spectral Line

Any of a number of lines corresponding to definite wavelengths of an atomic emission or absorption spectrum, represents the energy difference between two energy levels.

 

Valence Shell Electron Pair Repulsion Theory

Assumes that electron pairs are arranged around the central element of a molecule or polyatomic ion so that there is maximum separation (and minimum repulsion) among regions of high electron density.

 

Differential Scanning Calorimetry (DSC)

A technique for measuring the temperature, direction, and magnitude of thermal transitions in a sample material by heating/cooling and comparing the amount of energy required to maintain its rate of temperature increase or decrease with an inert reference material under similar conditions.

Insulator

Poor electric and heat conductor.

Saccharic

of or derived from saccharin or a saccharine substance.