The pressure exerted by one gas in a mixture of gases.
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Frequency
The number of repeating corresponding points on a wave that pass a given observation point per unit time.
Electroplating
Plating a metal onto a (cathodic) surface by electrolysis.
Nuclear Reaction
Involves a change in the composition of a nucleus and can evolve or absorb an extraordinarily large amount of energy.
Band of Stability
Band containing nonradioactive nuclides in a plot of number of neutrons versus atomic number.
Coefficient of expansion
The ratio of the change in length or volumen of a body to the original lengthor volume for a unit change in temperature.
Electron
A subatomic particle having a mass of 0.00054858 amu and a charge of 1-.
pH
Negative logarithm of the concentration (mol/L) of the H3O+[H+] ion, scale is commonly used over a range 0 to 14.
Radioactive Tracer
A small amount of radioisotope replacing a nonradioactive isotope of the element in a compound whose path (for example, in the body) or whose decomposition products are to be monitored by detection of radioctivity, also called a radioactive label.
Hydrocarbons
Compounds that contain only carbon and hydrogen.
Dipole
Refers to the separation of charge between two covalently bonded atoms.
