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2. List of chemical elements - Wikipedia

   en.wikipedia.org/wiki/List_of_chemical_elements

   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). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...

3. File:The Periodic Table of the Elements in Pictures.pdf

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

   English: This pictorial periodic table is colorful, boring, and packed with information. In addition to the element's name, symbol, and atomic number, each element box has a drawing of one of the element's main human uses or natural occurrences. The table is color-coded to show the chemical groupings.

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:Periodic table - Wikipedia

   en.wikipedia.org/wiki/Template:Periodic_table

   Printable version; In other projects ... This periodic table is the prime form presented at this English wikipedia. ... Template:Element cell-named ...

6. Types of periodic tables - Wikipedia

   en.wikipedia.org/wiki/Types_of_periodic_tables

   A periodic table having the appearance of a multi-layered cake. There are eight wooden layers that sit on top of one another and can be rotated. Layers are divided into chemical elements with the engraved element name and atomic number. [92] Spatial tables pass through three or more dimensions (helical tables are instead classed as continuous ...

7. Template:List of oxidation states of the elements - Wikipedia

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

   This table lists only the occurrences in compounds and complexes, not pure elements in their standard state or allotropes. Noble gas +1 Bold values are main oxidation states

8. List of elements by atomic properties - Wikipedia

   en.wikipedia.org/wiki/List_of_elements_by_atomic...

   This is a list of chemical elements and their atomic properties, ordered by atomic number (Z).. Since valence electrons are not clearly defined for the d-block and f-block elements, there not being a clear point at which further ionisation becomes unprofitable, a purely formal definition as number of electrons in the outermost shell has been used.

9. Period (periodic table) - Wikipedia

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

   A period on the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells. Each next element in a period has one more proton and is less metallic than its predecessor. Arranged this way, elements in the same group (column) have similar chemical and physical properties, reflecting the periodic law.