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- Period_(periodic_table) abstract "In the periodic table of the elements, elements are arranged in a series of rows (or periods) so that those with similar properties appear in a column. Elements of the same period have the same number of electron shells; with each group across a period, the elements have one more proton and electron and become less metallic. This arrangement reflects the periodic recurrence of similar properties as the atomic number increases. For example, the alkaline metals lie in one group (group 1) and share similar properties, such as high reactivity and the tendency to lose one electron to arrive at a noble-gas electronic configuration. The periodic table of elements has a total of 118 elements. Modern quantum mechanics explains these periodic trends in properties in terms of electron shells. As atomic number increases, shells fill with electrons in approximately the order shown at right. The filling of each shell corresponds to a row in the table.In the s-block and p-block of the periodic table, elements within the same period generally do not exhibit trends and similarities in properties (vertical trends down groups are more significant). However in the d-block, trends across periods become significant, and in the f-block elements show a high degree of similarity across periods (particularly the lanthanides).".
- Period_(periodic_table) thumbnail Madelung_rule.svg?width=300.
- Period_(periodic_table) wikiPageID "86350".
- Period_(periodic_table) wikiPageRevisionID "602696358".
- Period_(periodic_table) caption "Legend for the background color".
- Period_(periodic_table) child "no".
- Period_(periodic_table) hasPhotoCollection Period_(periodic_table).
- Period_(periodic_table) theme "category".
- Period_(periodic_table) unknown "yes".
- Period_(periodic_table) subject Category:Periodic_table.
- Period_(periodic_table) subject Category:Periods_in_the_periodic_table.
- Period_(periodic_table) comment "In the periodic table of the elements, elements are arranged in a series of rows (or periods) so that those with similar properties appear in a column. Elements of the same period have the same number of electron shells; with each group across a period, the elements have one more proton and electron and become less metallic. This arrangement reflects the periodic recurrence of similar properties as the atomic number increases.".
- Period_(periodic_table) label "Period (periodic table)".
- Period_(periodic_table) label "Periode (scheikunde)".
- Period_(periodic_table) label "Periode des Periodensystems".
- Period_(periodic_table) label "Periodo della tavola periodica".
- Period_(periodic_table) label "Período (química)".
- Period_(periodic_table) label "Prawo okresowości Mendelejewa".
- Period_(periodic_table) label "Période du tableau périodique".
- Period_(periodic_table) label "Период периодической системы".
- Period_(periodic_table) label "دورة الجدول الدوري".
- Period_(periodic_table) label "元素の周期".
- Period_(periodic_table) label "元素周期".
- Period_(periodic_table) sameAs Periode_des_Periodensystems.
- Period_(periodic_table) sameAs Taula_periodikoko_periodo.
- Period_(periodic_table) sameAs Période_du_tableau_périodique.
- Period_(periodic_table) sameAs Periode_tabel_periodik.
- Period_(periodic_table) sameAs Periodo_della_tavola_periodica.
- Period_(periodic_table) sameAs 元素の周期.
- Period_(periodic_table) sameAs 주기율표_주기.
- Period_(periodic_table) sameAs Periode_(scheikunde).
- Period_(periodic_table) sameAs Prawo_okresowości_Mendelejewa.
- Period_(periodic_table) sameAs Período_(química).
- Period_(periodic_table) sameAs m.0lvjm.
- Period_(periodic_table) sameAs Q101843.
- Period_(periodic_table) sameAs Q101843.
- Period_(periodic_table) wasDerivedFrom Period_(periodic_table)?oldid=602696358.
- Period_(periodic_table) depiction Madelung_rule.svg.
- Period_(periodic_table) isPrimaryTopicOf Period_(periodic_table).
