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The combination of critical temperature and critical pressure of a substance.

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Ground State

The lowest energy state or most stable state of an atom, molecule or ion.

Mass Number

The sum of the numbers of protons and neutrons in an atom, an integer.

Fluorescence

Absorption of high energy radiation by a substance and subsequent emission of visible light.

Dosimeter

A small, calibrated electroscope worn by laboratory personnel and designated to detect and measure incident ionizing radiation or chemical exposure.

Anode

In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.

Secondary Voltaic Cells

Voltaic cells that can be recharged, original reactanats can be regenerated be reversing the direction of the current flow.

Nonbonding Orbital

A molecular orbital derived only from an atomic orbital of one atom, lends neither stability nor instability to a molecule or ion when populated with electrons.

Standard Electrode Potential

By convention, potential, Eo, of a half-reaction as a reduction relative to the standard hydrogen electrode when all species are present at unit activity.

 

Amino Acid

Compound containing both an amino and a carboxylic acid group.The --NH2 group.

Saccharide

An organic compound containing a sugar or sugars.