A chemist is a scientist trained in the science of chemistry. Chemists study the composition of matter and its small-scale properties such as density and acidity instead of large-scale properties like size and shape. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms. Chemists carefully measure substance proportions, reaction rates, and other chemical properties.
Chemists use this knowledge to learn the composition, and properties of unfamiliar substances, as well as to reproduce and synthesize large quantities of useful naturally occurring substances and create new artificial substances and useful processes. Chemists may specialize in any number of subdisciplines of chemistry.
Materials scientists and metallurgists share much of the same education and skills with chemists. Chemical engineers are concerned with the physical processes necessary to carry out industrial reactions and to separate and purify the products, and work with industrial chemists on the development of new processes.
Jobs for chemists usually require at least a bachelor's degree, but many positions, especially those in research, require a Ph.D. Most undergraduate programs emphasize mathematics and physics as well as chemistry, partly because chemistry is also known as "the central science", thus chemists ought to have an all-rounded knowledge about science.
At the Master's level and higher, students tend to specialize in a particular field. Fields of specialization include biochemistry ,nuclear chemistry, organic chemistry, inorganic chemistry, analytical chemistry, theoretical chemistry, quantum chemistry, environmental chemistry and physical chemistry. Postdoctoral experience may be required for certain positions.
Monday, December 15, 2008
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