- Period (periodic table)
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Wikipedia English-Arabic glossary . 2014.
Period (periodic table)
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Period (periodic table) — In the periodic table of the elements, a period is a horizontal row of the table.The elements are laid out in a series of rows so that those with similar properties line up in vertical columns: this reflects the periodic recurrence of similar… … 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 (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 (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 (electron configurations) — * Configurations of elements with light gray background are uncertain or not available.* Grayed out electron numbers indicate subshells that are filled to their maximum.Configurations that are unavailable are guessed to be similar to the element… … 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
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
Portion of the periodic table of elements related to semiconductors — ▪ Table Portion of the periodic table of elements related to semiconductors column period II III IV V VI 2 boron B carbon C nitrogen N 3 magnesium Mg aluminum Al silicon Si phosphorus P sulfur S 4 zinc Zn gallium Ga germanium Ge arsenic As… … Universalium
Periodic table (crystal structure) — The structures of metallic elements adopted at normal temperatures are colour coded and shown below Greenwood Earnshaw] , the only exception is mercury, Hg, which is a liquid and the structure refers to the low temperature form. The melting… … 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
Period — or periodic may refer to:Language and literature* Full stop, a punctuation mark indicating the end of a sentence or phrase * Periodic sentence, a sentence that is not grammatically complete until its end * The final book in Dennis Cooper s George … Wikipedia
