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A neutral subatomic particle having a mass of 1.0087 amu.

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Atomic Number


Integral number of protons in the nucleus, defines the identity of element.
 

Third Law of Thermodynamics

The entropy of a hypothetical pure, perfect, crystalline sustance at absolute zero temperature is zero.

Ampere

Unit of electrical current, one ampere equals one coulomb per second.

 

Chemical Hygiene Plan (CHP)

A written program developed and implemented by an employer designating proceedures, equipment, personal protective equipment, and work practices that are capable of protecting employees from the health hazards presented by hazardous chemicals usid in that particular workplace.

Complex Ions

Ions resulting from the formation of coordinate covalent bonds between simple ions and other ions or molecules.

K Capture

Absorption of a K shell (n=1) electron by a proton as it is converted to a neutron.

Acid Anhydride

Compound produced by dehydration of a carbonic acid. General formula is R--C--O--C--R. Chemical compound that reacts with water to form an acid and are usually oxides of nonmetallic elements.

Distilland

The material in a distillation apparatus that is to be distilled.

Polydentate

Refers to ligands with more than one donor atom.

pH

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