1. Periodic Table Learn what the periodic table is and how it is used to arrange the chemical elements in a logical order. http://chemistry.about.com/od/periodictable/Periodic_Table.htm

zWASL=1 zGL='0';zGR='ca-about-radlink'; zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') zDO=0 Home Education Chemistry Chemistry Search Chemistry Chem 101 Science Projects Science Fair Filed In: Chemistry for Kids Chemistry 101 Learn what the periodic table is and how it is used to arrange the chemical elements in a logical order. Periodic Table of the Elements This handy table is from your About Guide. Check back often for additional facts and figures. Who Invented the Periodic Table? Do you know who described the first periodic table of the elements that ordered the elements by increasing atomic weight and according to trends in their properties? I'll give you a hint. It was not Dmitri Mendeleev. The actual inventor of the periodic table is someone rarely mentioned in chemistry history books. zSB(3,3) Periodic Table Study Guide Learn about the periodic table of the elements. Find out about the history of the periodic table, how the elements are organized, and how to use the periodic table to predict the behavior of unfamiliar elements. Introduction to the Periodic Table Learn how the periodic table of the elements is structured. Get basic history about its development and learn how periods and groups relate to electrons and atomic mass.

2. Periodic Table - Wikipedia, The Free Encyclopedia The periodic table of the chemical elements (also periodic table of the elements or just the periodic table) is a tabular display of the chemical elements. http://en.wikipedia.org/wiki/Periodic_table

Periodic table From Wikipedia, the free encyclopedia Jump to: navigation search This article is about the periodic table of the elements. For the similarly-titled books, see The Periodic Table This article needs additional citations for verification Please help improve this article by adding reliable references . Unsourced material may be challenged and removed (October 2010) The periodic table of the chemical elements (also periodic table of the elements or just the periodic table ) is a tabular display of the chemical elements . Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869, who intended 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. The periodic table is now ubiquitous within the academic discipline of chemistry , providing a useful framework to classify, systematize, and compare all of the many different forms of chemical behavior. The table has found many applications in chemistry, physics biology , and engineering , especially chemical engineering . The current standard table contains 118 elements to date. (elements Contents Structure Alternative versions Classification Groups ... External links Structure Group Period H He ... Lr This common arrangement of the periodic table separates the lanthanoids and actinoids (the f-block) from other elements. The

3. EFunda Periodic Table Basic data Interactive periodic table. Includes electrical resistivity, vaporization enthalpy and heat capacity. http://www.efunda.com/materials/elements/periodic_table.cfm

4. Printable Periodic Table Of The Elements, 2010 Two up-to-date periodic tables in PDF format. http://www.profmokeur.ca/chemistry/printable_periodic_table.htm

First, see : MOKEUR'S INTERACTIVE PERIODIC TABLE This page contains links to two documents in a "PDF" format that you can download, read, and print on a 8 1/2 x 11 in. sheet of paper. You can use this file to print this table for yourself, groups of students, whatever. What you may not do is sell it, or distribute it on media which you sell or post on the Web. Click below the thumbnail and make your selection or Color periodic table 2010 (PDF) If you need the software to read the PDF format click >

5. InfoFries Science Central: Periodic Table Of Elements Provides various printable periodic tables in PDF format - from the simplest to the very detailed. http://infofries.freehostia.com/science/periodic_tables.php

6. Periodic Table - CreationWiki, The Encyclopedia Of Creation Science Elements are arranged into a table (called the Periodic Table of Elements) based on properties that different element share in common properties that were recognized to repeat http://creationwiki.org/Periodic_table

SERVER UPGRADE COMPLETE! Please consider supporting this site Periodic table From CreationWiki, the encyclopedia of creation science Jump to: navigation search A representative element from the Periodic table showing the typical position of the atomic name atomic symbol atomic number atomic weight , and electron configuration Elements are arranged into a table (called the Periodic Table of Elements ) based on properties that different element share in common - properties that were recognized to repeat periodically when elements of increasing atomic masses were compared. Each cell of the table contains a different element. The cells of most periodic tables contain the name and symbol of each element, the atomic number (the number of protons ), and the atomic weight (average number of protons + neutrons ). Some periodic tables will contain other information, such as the electron shell configuration of each element, or their state at room temperature ( liquid gas , or solid The electron configurations of atoms is the primarily determinant of their chemical reactivity, and particularly the outer-shell (or "valence") electrons. The elements in the periodic table are arranged into rows (known as groups or families) and columns (known as periods ) based on how many shells of electron the atoms possess, and the number of electron in outer-shell, respectively.

7. Periodic Table - Simple English Wikipedia, The Free Encyclopedia The periodic table of the chemical elements is a list of known atoms (chemical elements). In the table the elements are placed in the order of their atomic numbers starting http://simple.wikipedia.org/wiki/Periodic_table

Periodic table From Wikipedia, the free encyclopedia Jump to: navigation search The periodic table of the chemical elements is a list of known atoms ( chemical elements ). In the table the elements are placed in the order of their atomic numbers starting with the lowest number. The atomic number of an element is the same as the number of electrons or protons in that particular atom In the periodic table the elements are arranged into periods and groups A row of elements across the table is called a period . Each period has a number: from 1 to 7. Period 1 has only 2 elements in it: hydrogen and helium . Period 2 and Period 3 both have 8 elements. Other periods are longer. A row of elements down the table is called a group . There are 18 groups in the standard periodic table. Each group has a number: from 1 to 18. Elements in a group have electrons arranged in similar ways, which gives them similar chemical properties (they behave in similar ways). For example, group 18 is known as the noble gases because they are all gases and they do not combine with other atoms. The periodic table can be used by chemists to observe patterns, and relationships between the elements. For example, elements to the top and far left of the table are the most metallic, and elements on the bottom right are the least metallic. (e.g. lithium is much more metallic than xenon). There are also many other patterns and relationships.

8. Periodic Table - New World Encyclopedia The periodic table of the chemical elements is a tabular display of the chemical elements. It is perhaps the icon of Chemistry and expresses much about the physical and http://www.newworldencyclopedia.org/entry/Periodic_table

Periodic table From New World Encyclopedia Jump to: navigation search Previous (Peridotite) Next (Periodic table, main group elements) The periodic table of the chemical elements is a tabular display of the chemical elements . It is perhaps the icon of Chemistry and expresses much about the physical and chemical properties of the known elements . The emergence of the periodic table occurred concurrently with the development of the scientific understanding of the composition of matter . In its current form, it owes much to quantum mechanics. The electronic structures derived from quantum mechanics are used to explain theoretically the experimentally observed periodic variations in properties of the elements . The periodic table is one of the essential components of our understanding of the universe and underlies all of chemistry. Contents History Methods for displaying the periodic table Standard periodic table Other depictions ... Credits History Main article: History of the periodic table The original table was created without a knowledge of the inner structure of atoms , but rather by correlating physical and chemical properties of the elements with atomic mass . If the elements are ordered by atomic mass then a certain periodicity , or regular repetition, of physical and chemical properties can be observed. The first to recognize these regularities was the German chemist Johann Wolfgang Döbereiner who, in 1829, noticed a number of

9. Printable Periodic Table | Webelements Nexus This item contains links to two portable document format (pdf) files that you can download, read, and print with the Adobe Acrobat Reader on whatever computer you use. http://www.webelements.com/nexus/Printable_Periodic_Table

You are here: WebElements Periodic Table Nexus WebElements Nexus WebElements: the periodic table on the web Search this site: Home Elements Compounds Periodicity ... News Chemistry Site index References WebElements blog Contact Chemistry literature feeds ACS journals J. Am. Chem. Soc. Inorg. Chem. Organometallics ... Periodic Table » Printable Periodic Table Printable Periodic Table This item contains links to two "portable document format" (pdf) files that you can download, read, and print with the Adobe Acrobat Reader on whatever computer you use. You can use this file to print copies of the periodic table for yourself, groups of students, whatever. What you may not do is sell it, or distribute it on media which you sell. If you are connected to the InterNet and your Adobe Acrobat software is sufficiently current, click on any of the elements in the periodic table from within the Adobe Acrobat reader program to retrieve information about that element from the WebElements site. The 5-figure version is called WEBELEM2.PDF. This version is appropriate for most uses, in particular for school use and many university requirements. It lists the atomic weights to 5 significant figures, all that is needed for many purposes. The full version is called WEB_ELEM.PDF. This version is appropriate if you want the atomic weights to have the maximum number of figures. The estimated errors as given by IUPAC are also included. This will suit the professional in particular but is also suitable in many cases for school and university requirements.

10. Periodic Table Of Elements - Engineers Edge Basic Simple periodic table of elements. http://www.engineersedge.com/periodic_table_of_elements.htm

11. Periodic Table Periodic table of elements provides comprehensive data on the chemical elements including scores of properties, element names in many languages, chemical compounds, most known http://ull.chemistry.uakron.edu/periodic_table/index.html

12. Periodic Table: Facts, Discussion Forum, And Encyclopedia Article The periodic table of the chemical elements (also periodic table of the elements or just the periodic table) is a tabular http://www.absoluteastronomy.com/topics/Periodic_table

Home Discussion Topics Dictionary ... Login Periodic table Periodic table Topic Home Discussion Definition Overview The periodic table of the chemical elements (also periodic table of the elements or just the periodic table ) is a tabular Table (information) A table is both a mode of visual communication and also a means of arranging data.The table is not the only means of arranging data.The use of tables is pervasive throughout all communication, research and data analysis. Tables appear in print media, handwritten notes, computer software,... display of the chemical element Chemical element A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus.... s. Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev Dmitri Mendeleev Dmitri Ivanovich Mendeleev , was a Russian chemist and inventor. He is credited as being the creator of the first version of the periodic table of elements... in 1869, who intended 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.

13. Periodic Table Of Elements And Chemistry Award winning periodic table, with userfriendly element data and facts. Cool, online chemistry videos, dictionary, tools and forum. http://www.chemicool.com/

@import url( http://www.chemicool.com/chemistry/wp-content/themes/chemtheme/style.css ); @import url( http://www.chemicool.com/styleJUSTINDEX.css ); Periodic Table Chemical Elements Chemistry Dictionary Group Period H He Li Be ... Lr Periodic Table Key X Synthetic Elements X Liquids or melt at close to room temp. X Solids X Gases Alkali Metals Alkali Earth Metals Transition Metals Other Metals Metalloids Other Non Metals Halogens Noble Gases Rare Earth Metals Periodic Table The first periodic table was devised by Dmitri Mendeleev and published in 1869. Mendeleev found he could arrange the 65 elements that were then known in a grid or table so that each element had: 1. A higher atomic weight than the one on its left. 2. Similar chemical properties to other elements in the same column. He realized that the table in front of him lay at the very heart of chemistry. In his table he noted gaps - spaces where elements should be but none had yet been discovered. In fact, just as Adams and Le Verrier could be said to have discovered the planet Neptune on paper, Mendeleev could be said to have discovered germanium (which he called eka -silicon because he observed a gap between silicon and tin), gallium (

14. Chemical Elements.com - An Interactive Periodic Table Of The Elements An upto-date periodic table with detailed but easy to understand information http://www.chemicalelements.com/

Home About This Site Comments Help Links ... Window Version Show Table With: Name Atomic Number Atomic Mass Electron Configuration ... Crystal Structure Element Groups: Alkali Metals Alkaline Earth Metals Transition Metals Other Metals ... Rare Earth Elements Click on an element symbol for more information This page was created by Yinon Bentor. Please visit this site's license agreement and privacy statement

15. Periodic Table Of The Elements (JavaScript) An infopacked interactive javascripted Periodic Table. Designed by DreamWave the premiere e-source for dream reverie and revelation. (Mendeleyev first saw the table in a dream) http://www.dreamwv.com/primer/page/s_pertab.html

16. Periodic Table Periodic Table. Switch to the text box version of Mucal. Click on any button with element name to get its xray properties. If you give an energy value in the box at the top of http://www.csrri.iit.edu/periodic-table.html

Periodic Table Switch to the text box version of Mucal. Click on any button with element name to get its x-ray properties. If you give an energy value in the box at the top of the table then you also get x-ray cross-sections at that energy. The sources for the subroutine (mucal_f or mucal_c) used to calculate x-ray cross-sections is available Energy: keV - Please note that values above 500 will be treated as eV rather than keV Po At Fr Ra Lr Rf Db Sg Bh Hs Mt Ds Rg Uub Uut Uuq Uup Uuh Lanthanide series Actinide series Ac Pa Np Am Cm Bk Cf Es Fm Md No Program reference: P. Bandyopadhyay and C.U. Segre, http://www.csrri.iit.edu/mucal.html. Calculations are based on data from: W.H. McMaster N.K. Del Grande, J.H. Mallett and J.H. Hubbell, "Compilation of x-ray cross sections", Lawrence Livermore National Laboratory Report UCRL-50174 (section I 1970, section II 1969, section III 1969 and section IV 1969). Fluorescence yield data from: M. O. Krause, J. Phys. Chem. Ref. Data. Please report problems to Carlo Segre (segre@iit.edu)

17. WebElements Periodic Table Of The Elements This WebElements periodic table page contains Essential information for the element ununhexium http://webelements.com/

essential data and description WebElements WebElements: the periodic table on the web Posters T-shirts Games Mugs Home of the periodic table Elements Compounds Periodicity Chemistry Books (USA) ... Chemdex What do you want to know about the chemical elements? The essentials History Contents Uses ... Orbital properties Explore key information about the chemical elements through this periodic table Group Period H He Li Be ... Uuo *Lanthanoids La Ce Pr Nd ... Yb **Actinoids Ac Th Pa U ... No Element 117 discovered? A paper just published (5 April 2010) in Physical Review Letters by Yu. Ts. Oganessian and others claims the synthesis of a new element with atomic number 117. The abstract states "The discovery of a new chemical element with atomic number Z=117 is reported. The isotopes 117 and 117 were produced in fusion reactions between Ca and Physical Review Letters: element 117 preliminary publication element 117 leak WebElements Shop WapElements ... Chemputer WebElements: the periodic table on the WWW [ http://www.webelements.com/ Mark Winter The University of Sheffield WebElements Home ... Help

18. Untitled Document Periodic Table When you have finished this page, try the Periodic Table Quiz. The Periodic Table is a chart featuring all the elements. http://www.mcwdn.org/chemist/pertable.html

Periodic Table When you have finished this page, try the Periodic Table Quiz. The Periodic Table is a chart featuring all the elements. It was put together by Dmitri Mendeleev. He set up the chart by organizing the the elements according to the physical and chemical properties they have in common, Each grouping is arranged starting with those with the lowest atomic number and moving along in order of these atomic numbers. The groups are numbered from one to eight in Roman numerals (I-VIII). Each group is split into two subgroups called families.These families are called the a series and the b series. All the elements in the same group are similar chemically. They have the same number of valence electrons. Valence is the ability of different atoms to form chemical bonds based on the number of electrons an atom gives up or takes on when forming chemical bonds. This allows combinations of atoms to form compounds. Atoms that form one chemical bond are called monovalent, those that form two chemical bonds are called divalent, those that form three chemical bonds are called trivalent and those that form four chemical bonds are called tetravalent. The rows going across the Periodic Table contain elements with the same number of electron shells. These rows are called periods.

19. Periodic Table Of The Elements A basic periodic table of the elements. http://www.periodictableontheweb.com/

20. The Photographic Periodic Table Of The Elements The definitive online periodic table reference site including technical data, and photographs and descriptions of thousands of samples of the chemical elements. http://periodictable.com/

Click any element below to see more. Newest samples 9 February, 2010 What you'll find on this site My Popular Science Column Buy Posters, Card Decks and Books! If you like this website you'll love my books The Elements and Mad Science Don't miss the most Beautiful periodic table posters and card decks plus real elements and displays from the creators of this site. About Us Students Teachers Scientists ... The Wooden Periodic Table Table Website created with Mathematica Sponsored by

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