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2. Extended periodic table - Wikipedia

   en.wikipedia.org/wiki/Extended_periodic_table

   An extended periodic table theorizes about chemical elements beyond those currently known and proven. The element with the highest atomic number known is oganesson (Z = 118), which completes the seventh period (row) in the periodic table. All elements in the eighth period and beyond thus remain purely hypothetical.

3. Period (periodic table) - Wikipedia

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

   There are currently seven complete periods in the periodic table, comprising the 118 known elements. Any new elements will be placed into an eighth period; see extended periodic table. The elements are colour-coded below by their block: red for the s-block, yellow for the p-block, blue for the d-block, and green for the f-block.

4. Periodic table - Wikipedia

   en.wikipedia.org/wiki/Periodic_table

   The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). It is an icon of chemistry and is widely used in physics and other sciences.

5. Template : Extended periodic table (by Aufbau, 50 columns ...

   en.wikipedia.org/wiki/Template:Extended_periodic...

   Period 8 in the extended periodic table based on the Aufbau principle. 8: 119 Uue: 120 Ubn: 121 Ubu: 122 Ubb: 123 Ubt 124 Ubq: 125 Ubp 126 Ubh: 127 Ubs 128 Ubo 129 ...

6. 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.

7. Template:Periodic table (Reihen and periods) - Wikipedia

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

   in Periodic Table 1871 Italic text: in Periodic Table 1906 (the last by Mendeleev) Regular text (not bold) added after 1906 begin–end of 1871 Reihe – Ga: Element predicted, later proven correct within Mendeleev's lifetime and added by him – (Tc) Element predicted, later proven correct posthumously –

8. File:Simple Periodic Table Chart-blocks.svg - Wikipedia

   en.wikipedia.org/wiki/File:Simple_Periodic_Table...

   Column groups and row groups; Glossary of chemistry terms; Group (periodic table) List of chemical element name etymologies; Main-group element; Period (periodic table) Table of nuclides (segmented, narrow) Table of nuclides (segmented, wide) The Elements (song) Talk:Period (periodic table) User:Aenon94; User:Albert Poliakoff; User:C. J. T. T ...

9. Periodic table (electron configurations) - Wikipedia

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

   The construction of the periodic table ignores these irregularities and is based on ideal electron configurations. [2] Note the non-linear shell ordering, which comes about due to the different energies of smaller and larger shells.