Periodic table (detailed cells): Difference between revisions
ClueBot NG (talk | contribs) m Reverting possible vandalism by 196.202.161.106 to version by Sunmist. Report False Positive? Thanks, ClueBot NG. (2956176) (Bot) |
Rescuing 2 sources and tagging 0 as dead. #IABot (v1.3.2) (Feminist) |
||
| Line 4: | Line 4: | ||
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. The fifteenth (rightmost) lanthanide and actinide are [[d-block]] elements, belonging to [[group 3 element|group 3]], with [[scandium]] and [[yttrium]]. |
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. The fifteenth (rightmost) lanthanide and actinide are [[d-block]] elements, belonging to [[group 3 element|group 3]], with [[scandium]] and [[yttrium]]. |
||
Although precursors to this table exist, its invention is generally credited to [[Russia]]n [[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.<ref>{{cite news |
Although precursors to this table exist, its invention is generally credited to [[Russia]]n [[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.<ref>{{cite news|author= |title=The periodic table of the elements |publisher=[[International Union of Pure and Applied Chemistry]] |date=2007-07-22 |url=http://www.iupac.org/didac/Didac%20Eng/Didac01/Content/S01.htm |accessdate=2008-02-08 |deadurl=yes |archiveurl=https://web.archive.org/web/20080213082719/http://www.iupac.org/didac/Didac%20Eng/Didac01/Content/S01.htm |archivedate=2008-02-13 |df= }}</ref> |
||
__NOTOC__ |
__NOTOC__ |
||
{| id="toc" class="toc" style="float:left; margin:auto; text-align:center; vertical-align:top" |
{| id="toc" class="toc" style="float:left; margin:auto; text-align:center; vertical-align:top" |
||
| Line 24: | Line 24: | ||
==References== |
==References== |
||
{{refbegin}} |
{{refbegin}} |
||
* [http://www.iupac.org/reports/periodic_table/ IUPAC periodic table] (Retrieved 20 June 2005) |
* [https://web.archive.org/web/20050405073517/http://www.iupac.org/reports/periodic_table/ IUPAC periodic table] (Retrieved 20 June 2005) |
||
* [http://www.webelements.com/ WebElements Periodic table (professional edition)] (Retrieved 20 June 2005) |
* [http://www.webelements.com/ WebElements Periodic table (professional edition)] (Retrieved 20 June 2005) |
||
* ''Atomic Weights of the Elements 2001'', [http://www.iupac.org/publications/pac/2003/7508/7508x1107.html Pure Appl. Chem. 75(8), 1107–1122, 2003] |
* ''Atomic Weights of the Elements 2001'', [http://www.iupac.org/publications/pac/2003/7508/7508x1107.html Pure Appl. Chem. 75(8), 1107–1122, 2003] |
||
Revision as of 18:33, 19 May 2017
| Part of a series on the |
| Periodic table |
|---|
This page shows large-cell versions of the periodic table. For each element name, symbol, atomic number, and mean atomic mass value for the natural isotopic composition of each element are shown. The periodic table of the chemical elements is a tabular method of displaying the chemical elements.
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. The fifteenth (rightmost) lanthanide and actinide are d-block elements, belonging to group 3, with scandium and yttrium.
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.[1]
| Content | |
|---|---|
| 18-column layout | 32-column layout |
 |
 |
18-column layout
Template:Periodic table (18 columns, large cells)
32-column layout
Template:Periodic table (32 columns, large cells)
References
- IUPAC periodic table (Retrieved 20 June 2005)
- WebElements Periodic table (professional edition) (Retrieved 20 June 2005)
- Atomic Weights of the Elements 2001, Pure Appl. Chem. 75(8), 1107–1122, 2003
- IUPAC Standard Atomic Weights Revised (2005).
- IUPAC Quantities, Units and Symbols in Physical Chemistry Third Edition
Notes
- ^ "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)
