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- Period_2_element abstract "A period 2 element is one of the chemical elements in the second row (or period) of the periodic table. The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behavior of the elements as their atomic number increases; a new row is started when chemical behavior begins to repeat, creating columns of elements with similar properties.The second period contains the elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon. This situation can be explained by modern theories of atomic structure. In a quantum mechanical description of atomic structure, this period corresponds to the filling of the 2s and 2p orbitals. Period 2 elements obey the octet rule in that they need eight electrons to complete their valence shell. The maximum number of electrons that these elements can accommodate is ten, two in the 1s orbital, two in the 2s orbital and six in the 2p orbital. All of the elements in the period can form diatomic molecules except beryllium and neon.".
- Period_2_element thumbnail Electron_shell_003_Lithium_-_no_label.svg?width=300.
- Period_2_element wikiPageID "199077".
- Period_2_element wikiPageRevisionID "604988553".
- Period_2_element align "left".
- Period_2_element alt "Beryllium's electron configuration is 2, 2.".
- Period_2_element alt "Boron's electron configuration is 2, 3.".
- Period_2_element alt "Carbon's electron configuration is 2, 4.".
- Period_2_element alt "Fluorine's electron configuration is 2, 7.".
- Period_2_element alt "Lithium's electron configuration is 2, 1.".
- Period_2_element alt "Neon's electron configuration is 2, 8.".
- Period_2_element alt "Nitrogen's electron configuration is 2, 5.".
- Period_2_element alt "Oxygen's electron configuration is 2, 6.".
- Period_2_element caption Beryllium.
- Period_2_element caption Boron.
- Period_2_element caption Carbon.
- Period_2_element caption Fluorine.
- Period_2_element caption Lithium.
- Period_2_element caption Neon.
- Period_2_element caption Nitrogen.
- Period_2_element caption Oxygen.
- Period_2_element direction "horizontal".
- Period_2_element hasPhotoCollection Period_2_element.
- Period_2_element image "Electron shell 003 Lithium - no label.svg".
- Period_2_element image "Electron shell 004 Beryllium - no label.svg".
- Period_2_element image "Electron shell 005 Boron - no label.svg".
- Period_2_element image "Electron shell 006 Carbon - no label.svg".
- Period_2_element image "Electron shell 007 Nitrogen - no label.svg".
- Period_2_element image "Electron shell 008 Oxygen - no label.svg".
- Period_2_element image "Electron shell 009 Fluorine - no label.svg".
- Period_2_element image "Electron shell 010 Neon - no label.svg".
- Period_2_element width "100".
- Period_2_element subject Category:Pages_containing_element_color_directly.
- Period_2_element subject Category:Periods_in_the_periodic_table.
- Period_2_element comment "A period 2 element is one of the chemical elements in the second row (or period) of the periodic table. The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behavior of the elements as their atomic number increases; a new row is started when chemical behavior begins to repeat, creating columns of elements with similar properties.The second period contains the elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon.".
- Period_2_element label "Chemische Elemente der zweiten Periode".
- Period_2_element label "Elementi del periodo 2".
- Period_2_element label "Elementos del periodo 2".
- Period_2_element label "Period 2 element".
- Period_2_element label "Periode-2-element".
- Period_2_element label "Pierwiastki drugiego okresu".
- Period_2_element label "Éléments de la période 2".
- Period_2_element label "Второй период периодической системы".
- Period_2_element label "عناصر الدورة الثانية".
- Period_2_element label "第2周期元素".
- Period_2_element label "第2周期元素".
- Period_2_element sameAs Prvky_2._periody.
- Period_2_element sameAs Chemische_Elemente_der_zweiten_Periode.
- Period_2_element sameAs Elementos_del_periodo_2.
- Period_2_element sameAs 2._periodoko_elementu.
- Period_2_element sameAs Éléments_de_la_période_2.
- Period_2_element sameAs Elementi_del_periodo_2.
- Period_2_element sameAs 第2周期元素.
- Period_2_element sameAs 2주기_원소.
- Period_2_element sameAs Periode-2-element.
- Period_2_element sameAs Pierwiastki_drugiego_okresu.
- Period_2_element sameAs Q207712.
- Period_2_element sameAs Q207712.
- Period_2_element wasDerivedFrom Period_2_element?oldid=604988553.
- Period_2_element depiction Electron_shell_003_Lithium_-_no_label.svg.
- Period_2_element isPrimaryTopicOf Period_2_element.
