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  2. Periodic table (electron configurations) - Wikipedia

    en.wikipedia.org/wiki/Periodic_table_(electron...

    Og, 118, oganesson : 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 4f 14 5d 10 6p 6 7s 2 5f 14 6d 10 7p 6 Note that these electron configurations are given for neutral atoms in the gas phase, which are not the same as the electron configurations for the same atoms in chemical environments.

  3. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    Periodic table of the chemical elements showing the most or more commonly named sets of elements (in periodic tables), and a traditional dividing line between metals and nonmetals. The f-block actually fits between groups 2 and 3; it is usually shown at the foot of the table to save horizontal space.

  4. Help : Periodic table classifications in the English Wikipedia

    en.wikipedia.org/wiki/Help:Periodic_table...

    This happens to fill the whole periodic table in 7 rows (periods). Heavier elements (atomic number 119 and higher) are theoretically described, and start in period 8 (row 8). When these undiscovered elements are placed in the periodic table, it is called an extended periodic table.

  5. List of chemical elements - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_elements

    118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).

  6. Group (periodic table) - Wikipedia

    en.wikipedia.org/wiki/Group_(periodic_table)

    In the periodic table of the elements, each column is a group. In chemistry, a group (also known as a family) [1] is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the 14 f-block columns, between groups 2 and 3, are not numbered.

  7. Portal:Chemistry/Elements/Periodic Table - Wikipedia

    en.wikipedia.org/.../Elements/Periodic_Table

    1. Hydro­gen 1 H 1.0080: He­lium 2 He 4.0026: 2: Lith­ium 3 Li 6.94: Beryl­lium 4 Be 9.0122: Boron 5 B 10.81: Carbon 6 C 12.011: Nitro­gen 7 N 14.007: Oxy­gen 8 O 15.999: Fluor­ine 9 F 18.998: Neon 10 Ne 20.180: 3: So­dium 11 Na 22.990: Magne­sium 12 Mg 24.305: Alumin­ium 13 Al 26.982: Sili­con 14 Si 28.085: Phos­phorus 15 P 30.974 ...

  8. 4 Nations Face-Off roster winners, losers: Hughes, Tkachuk ...

    www.aol.com/4-nations-face-off-roster-030143003.html

    No Dylan Strome, John Carlson, Tom Wilson, Jakob Chychrun or Logan Thompson. Thompson is 10-1-2 with among the best numbers (2.52 goals-against average, .913 save percentage) among Canadian goalies.

  9. Names for sets of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Names_for_sets_of_chemical...

    Elements in groups 12 or 13–18, excluding hydrogen * Transition elements are sometimes referred to as transition metals † Although the heavier elements of groups 15 (Mc), 16 (Lv), 17 (Ts) and 18 (Og) have been notionally assigned to the indicated groups their chemical properties have not yet been experimentally confirmed.