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Revision as of 03:49, 20 January 2019 editGuccizBud (talk | contribs)Extended confirmed users18,620 edits Copy edit ( minor )  ▸  Links  ▸  Rather than have the text "f-block" link to the top of the "Block (periodic table)" article, have it instead jump down and link directly to the "f-block" subsection within that same article.Tags: Mobile edit Mobile app edit Android app edit← Previous edit Revision as of 15:48, 12 February 2019 edit undo6ii9 (talk | contribs)Extended confirmed users, Template editors49,151 editsNo edit summaryNext edit →
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Revision as of 15:48, 12 February 2019

large-cell versions of the periodic table
Part of a series on the
Periodic table
Periodic table forms
Periodic table history
Sets of elements
By periodic table structure
By metallic classification
By other characteristics
Elements
List of chemical elements
Properties of elements
Data pages for elements

The periodic table is a tabular method of displaying the chemical elements. It can show much information, after name, symbol and atomic number. Also, for each element mean atomic mass value for the natural isotopic composition of each element can be noted. The two layout forms originate from two graphic forms of presentation of the same periodic table. Historically, when the f-block was identified it was drawn below the existing table, with markings for its in-table location (this page uses dots or asterisks). Also, a common presentation is to put all 15 lanthanide and actinide columns below, while the f-block only has 14 columns. One lanthanide and actinide each are d-block elements, belonging to group 3 with scandium and yttrium, though whether these are the first of each series (lanthanum and actinium) or the last (lutetium and lawrencium) has been disputed. The tables below show lanthanum and actinium as group 3 elements, as this is the more common form in the literature.

Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869. Mendeleev invented the table to illustrate recurring ("periodic") trends in the properties of the elements. The layout of the table has been refined and extended over time, as new elements have been discovered, and new theoretical models have been developed to explain chemical behavior.

Contents
18-column layout
Periodic table with f-block separated
Periodic table with f-block separated
32-column layout
References
Notes   

18-column layout

Template:Periodic table (18 columns, large cells)

32-column layout

Template:Periodic table (32 columns, large cells)

References

Citations

  1. "The periodic table of the elements". International Union of Pure and Applied Chemistry. 2007-07-22. Archived from the original on 2008-02-13. Retrieved 2008-02-08. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)

Sources

Periodic table
Periodic table forms
Sets of elements
By periodic table structure
Groups
Periods
Blocks
By metallicity
Metals
Metalloids
Nonmetals
Other sets
Elements
Lists
Properties
Data pages
History
See also

Category:
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