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The Chemical Glossary currently has 651 chemical entries. You may search the Chemical Glossary by entering the keyword in the search box or by browsing the entire chemical glossary by letter in alphabetical order.

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Exothermicity

The release of heat by a system as a process occurs.

Daughter Nuclide

Nuclide that is produced in a nuclear decay.

 

Exothermic

Describes processes that release heat energy.

Hydrate

A solid compound that contains a definite percentage of bound water.

Optical Isomers

Stereoisomers that differ only by being nonsuperimposable mirror images of each other, like right and left hands, also called enantiomers.

Band of Stability

Band containing nonradioactive nuclides in a plot of number of neutrons versus atomic number.

pH

Negative logarithm of the concentration (mol/L) of the H3O+[H+] ion, scale is commonly used over a range 0 to 14.

Acyl Group

Compound derived from a carbonic acid by replacing the --OH group with a halogen (X), usually --Cl, general formula is O R--C--X.

Mother Nuclide

Nuclide that undergoes nuclear decay.

Phenol

Hydrocarbon derivative containing an [OH] group bound to an aromatic raing.