Periodic table (large version)

Periodic table (large version)

This is a large version of the periodic table and contains the symbol, atomic number, and mean atomic mass value for the natural isotopic composition of each element. The periodic table of the chemical elements is a tabular method of displaying the chemical elements. Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869. Mendeleev intended the table to illustrate recurring ("periodic") trends in the properties of the elements. The layout of the table has been refined and extended over time, as new elements have been discovered, and new theoretical models have been developed to explain chemical behavior. [cite news | author = | title = The periodic table of the elements | publisher = International Union of Pure and Applied Chemistry | date = 2007-07-22 | url = http://www.iupac.org/didac/Didac%20Eng/Didac01/Content/S01.htm| accessdate=2008-02-08]

The periodic table is now ubiquitous within the academic discipline of chemistry, providing an extremely useful framework to classify, systematize and compare all the many different forms of chemical behavior. The table has also found wide application in physics, biology, engineering, and industry. The current standard table contains 117 confirmed elements as of 2008-01-27 (while element 118 has been synthesized, element 117 has not).

Table

References

* [http://www.iupac.org/reports/periodic_table/ IUPAC periodic table] (Retrieved 20 June, 2005)
* [http://www.webelements.com/ WebElements Periodic table (professional edition)] (Retrieved 20 June, 2005)
* "Atomic Weights of the Elements 2001", [http://www.iupac.org/publications/pac/2003/7508/7508x1107.html Pure Appl. Chem. 75(8), 1107-1122, 2003]
* [http://www.iupac.org/news/archives/2005/atomic-weights_revised05.html IUPAC Standard Atomic Weights Revised] (2005).

Notes


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