Periodic table (standard)


Periodic table (standard)

This is a typical display of the periodic table of the elements and contains the symbol and atomic number 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



"This common arrangement of the periodic table separates the lanthanides and actinides from other elements. The wide periodic table incorporates the f-block. The extended periodic table adds the 8th and 9th periods, incorporating the f-block and adding the theoretical g-block.

PeriodicTablesKey

See also

*Periodic table
*Periodic table (block)
*Periodic table (wide)
*Periodic table (extended)
*Table of nuclides

References

External links

* [http://www.webelements.com WebElements.com]
* [http://physics.nist.gov/PhysRefData/XrayMassCoef/tab3.html NIST's X-Ray Mass Attenuation Coefficients of Elements]
* [http://physics.nist.gov/PhysRefData/XrayMassCoef/tab1.html NIST's Table of Physical Properties of Elements]
* [http://periodic.lanl.gov/ Los Alamos version] (for American school children, but contains more of the history)


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Periodic table (wide) — This is a version of the periodic table of the elements that places all elements of one period in the same row. For more information on its contents and history, see the article Periodic table. PeriodicTablesKey See also *Periodic table *Periodic …   Wikipedia

  • Periodic table — This article is about the periodic table of the elements . For other uses, see The Periodic Table. The periodic table of the chemical elements (also known as the periodic table or periodic table of the elements) is a tabular display of the 118… …   Wikipedia

  • 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… …   Wikipedia

  • Periodic table (extended) — An extended periodic table was suggested by Glenn T. Seaborg in 1969. It is a logical extension of the principles behind the standard periodic table to include possible undiscovered chemical elements. All of the discovered elements are named by… …   Wikipedia

  • Periodic table (vertical) — The alternative periodic table is a standard periodic table rotated counterclockwise and then mirrored across the vertical axis, so that the lower groups are to the left and the number increases to the right. Due to the rotation and the… …   Wikipedia

  • History of the periodic table — The history of the periodic table reflects over a century of growth in the understanding of chemical properties, and culminates with the publication of the first actual periodic table by Dmitri Mendeleev in 1869.[1] While Mendeleev built upon… …   Wikipedia

  • Group (periodic table) — The periodic table of the chemical elements. The columns represent the groups In chemistry, a group (also known as a family) is a vertical column in the periodic table of the chemical elements. There are 18 groups in the standard periodic table,… …   Wikipedia

  • Extended periodic table — There are currently seven periods in the periodic table of chemical elements, culminating with atomic number 118. If further elements with higher atomic numbers than this are discovered, they will be placed in additional periods, laid out (as… …   Wikipedia

  • Cosmochemical Periodic Table of the Elements in the Solar System — In cosmochemistry, the Cosmochemical Periodic Table of the Elements in the Solar System is a periodic table that lists all known chemical elements. In addition, it supplements the standard periodic table with extra information for each element,… …   Wikipedia

  • periodic law — /pear ee od ik, pear /, Chem. 1. the law that the properties of the elements are periodic functions of their atomic numbers. 2. Also called Mendeleev s law. (originally) the statement that the chemical and physical properties of the elements… …   Universalium


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.