1. Chemistry: WebElements Periodic Table chemistry resource offers data on elements including physical properties, atomic structure, names in multiple languages and nuclides. http://www.webelements.com/

Chemistry: WebElements Periodic Table : Home page Pro Home Scholar Home Books WebElements CD ... Help WebElements See also: WebElements Scholar Edition - for students at universities and schools. WebElements online community Print your own periodic table ( updated 17 March 2003 You can drive traffic to your site by sponsoring an element Book store FlashElements for your PC or Mac WebElements wall chart PalmElements for your Palm WapElements TM for your Wap phone Linking to WebElements Send an e-card WebElements TM Periodic table (professional edition) See also: WebElements Scholar Edition - for chemistry and other students at universities and schools. Select an element from the periodic table. Group Period H He Li Be ... Uub Uut Uuq Uup Uuh Uus Uuo *Lanthanoids La Ce Pr Nd ... Yb **Actinoids Ac Th Pa U ... No In common with 2.5% of WebElements users, your browser appears not to support JavaScript, or perhaps you have turned it off in your browser preferences. You will still be able to navigate around WebElements but some of the navigation devices (popup menus and so on) and other features (calculators) will not work for you. Notes 53 million page views in the last 12 months Bookmark this address: http://www.webelements.com/

2. Periodic Table Basic data, very basic writeups, some pictures Includes a printable periodic table, a crossreferenced Category Science chemistry Periodic Table...... and audio to Tom Lehrer's 1952 song, The elements. Home, Search, Tidbits, Others,About, Question, Blog, chemistry@PC. http://chemlab.pc.maricopa.edu/periodic/periodic.html

The Pictorial Periodic Table Home Search Tidbits Others ... Chemistry@PC I II IIIb IVb Vb VIb VIIb VIIIb Ib IIb III IV V VI VII H He Li Be ... Uuo La nthanides Ce Pr Nd Pm ... Lu Ac tinides Th Pa U Np ... Lr Search the Pictorial Periodic Table: for elements with the following properties: Boiling Point, K Melting Point, K Density, g/mL Electronegativity Ionization Potential, V Heat of Vaporization, kJ/mol Heat of Fusion, kJ/mol Specific Heat, J/deg. C Atomic Number Atomic Weight, u the following keywords in the element descriptions or (not yet active) and (not yet active) the following property: Boiling Point, K Melting Point, K Density, g/mL Electronegativity Ionization Potential, V Heat of Vaporization, kJ/mol Heat of Fusion, kJ/mol Specific Heat, J/deg. C Atomic Number Atomic Weight, u for these elements: to the properties below for a list of elements: (not active now) Element Name Atomic Number Atomic Weight Oxide Properties Atomic Radius Covalent Radius Density Crystal Form Melting Point Boiling Point Specific Heat States

3. Chemical Elements.com - An Interactive Periodic Table Of The Elements Basic data, limited write-ups Provides information on the 109 named elements plus elements 110 - 112.Category Science chemistry Periodic Table...... Element Groups Alkali Metals Alkaline Earth Metals Transition Metals OtherMetals Metalloids NonMetals Halogens Noble Gases Rare Earth elements. 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

4. Periodic Table - Chooser Detailed data, writeups, basic listing of nuclides The Royal Society of chemistry's (in the UK) contribution to chemistry on the web. http://www.chemsoc.org/viselements/pages/periodic_table.html

An Introduction to the Periodic Table Click on the info button for html and pdf files that provide background information on the Periodic Table of Elements. NB. Adobe Acrobat Reader is required to read pdf files. If you don't have a copy of Adobe Acrobat Reader it can be downloaded by following the link below. Chemical data for individual elements can be obtained by following the data link from the web page belonging to that element. Reserve your copy of the Visual Elements periodic table wall chart Download the new Visual Elements Periodic Table screensaver (PC only). Click button for details. feedback@chemsoc.org

5. EnvironmentalChemistry.com: Periodic Table Of Elements Very comprehensive data, writeups, extensive listing of nuclides Data on elements includes scores of properties, element names in a dozen languages and almost all known nuclides. Environmental chemistry articles round out site. http://EnvironmentalChemistry.com/yogi/periodic/

Periodic Table of Elements Comprehensive data on elements including scores of properties, element names in many languages and most known nuclides is provided by this periodic table. In addition environmental and chemistry articles round out this site. Through out EnvironmentalChemistry.com, you will find that technical terms are linked to their definitions for your convenience. Click on an element's symbol or atomic number to view detailed information regarding it. The elements can sorted in different ways by clicking on one of the Elements Sorted By links below the table. Please bookmark or link to this page as you will want to be back! Also please remember to tell your friends, teachers and/or coworkers about EnvironmentalChemistry.com. Teachers: This EnvironmentalChemistry.com is a great classroom resouce! Please check out our notes about using this site in the classroom Editorial Staff Kenneth Barbalace Site creator, webmaster Roberta Barbalace author Julia Darochkina Barbalace Russian/English Periodic Table of Elements Groups IA IIA IIIA IVA VA VIA VIIA VIIIA IB IIB IIIB IVB VB VIB VIIB VIII IA IIA IIIB IVB VB VIB VIIB VIII IB IIB IIIA IVA VA VIA VIIA VIIIA H He Li Be ... Mt Uun Uuu Uub Uuq Uuh Uuo Ce Pr Nd Pm ... Lr Key Physical States etc.

6. Chemistry : Periodic Table : Potassium : Key Information 19 K 39.0983(1). All syntheses require an electrolytic step as it is so difficultto add an electron to the poorly electronegative potassium ion K + . http://www.webelements.com/webelements/elements/text/K/key.html

Chemistry: WebElements Periodic Table Professional Edition Potassium : key information Pro Home Scholar Home Books WebElements CD ... Help Kalium potassium Kalium potassio potasio Kalium Online discussions index Index for potassium background Key data; description History potassium around us Uses Geology Biology potassium compounds Reactions of potassium Compounds Bond enthalpies Radii in compounds ... Reduction potentials electronic properties Electronic configuration Ionization energies Electron affinities Electronegativities ... Valence shell radii physical properties Bulk properties (density, resistivity, etc.) Thermal properties (melting point, etc.) Thermodynamic properties crystallography Crystal structure [view VR world] [view pdb image] nuclear properties NMR Naturally occurring isotopes Radioisotopes WebElements Drive traffic to your site by sponsoring potassium WebElements online book store PalmElements for your Palm WapElements for your phone Acknowledgements Help About WebElements WebElements wall chart Sign the guest book FlashElements Search by keywords: Potassium K The essentials Name : potassium Symbol : K Atomic number Atomic weight CAS Registry ID Group number ... Group name : Alkali metal Period number Block : s-block Description Here is a brief description of potassium.

7. THE CHEMICAL ELEMENTS An introduction to elements and element characterization. http://www.tryagain.com/chemistry/elements.htm

Non Metals The Noble-Gas Elements Metalloids Metals THE CHEMICAL ELEMENTS The 100 plus elements are the "alphabet" of matter because every tangible material is a combinations of these elements. The elements are categorized as: Metals Non-Metals Metalloids Noble Gases This main categorization is based on the electrical attributes of the elements. Some elements tend to "lose" an electron, and become postively charged. (These are the metals), Other elements tend to "acquire" an electron, and become negatively charged, (the non metals). The third group, (metalloids), fall in between these two extremes. And the Noble Gas category is "unelectrical" displays no interest in either acquiring and losing an electron, but unlike the metalloids who can be "persuaded" one way or the other the noble ones simply don't engage. Since chemical reaction and chemical bonding are electrical in nature, it so happens that members of a certain category can substitute for another member and thereby create a combination which is slightly different, but generally similar. Say then that by carefully chosing a replacement element in a chemical compound, it is possible to "engineer" a desired slight change in the nature of the compound. This used to be the art, and now is the science of chemistry. When Hope is against you...-

8. K-12: Chemistry Text, graphics, photos, JAVA http//nobelprizes.com/nobel/chemistry/chemistry.htmlPeriodic Table of elements Webelements is a periodic table database http://www.ceismc.gatech.edu/busyt/chem.html

Chemistry Archaeology Art Astronomy ... Teachers' Reference Section GENERAL Amino Acids List with formulas, 3D modeling link to specific acids, MIME types. Text, graphics (German and English) http://www.chemie.fu-berlin.de/chemistry/bio/amino-acids.html Biographies of Famous Chemists A collection of links, arranged alphabetically by the last name of each subject, that provides rapid access to information about famous chemists throughout history. Text, graphics http://www.liv.ac.uk/Chemistry/Links/refbiog.html Chemist's Art Gallery The gallery contains spectacular chemistry-related visualizations and animations. By the Visualization and Animation Laboratory at Finland's Center for Scientific Computing. Text and graphics http://www.csc.fi/lul/chem/graphics.html A colorful, well-designed site for the high school chemistry student. Includes "tricks" for remembering aspects of atomic structure. Text, graphics http://www.chem4kids.com/ Chemical Compounds Searchable index for names of chemical compounds. Text (German and English) http://www.chemie.fu-berlin.de/cgi-bin/abbscomp

9. The Perfect Guide To Chemistry Discusses atoms and their components, the periodic table, its functions and the basic elements. http://www.angelfire.com/scifi/7chemistry/

The Perfect Guide to Chemistry Atom Structure Electron- The electron is a negatively charged subatomic particle and is found outside of the nucleus. Proton- The proton is a subatomic particle that is positively charge and is found in the nucleus of the atom. Neutron- The neutron is the subatomic particle that is neutral in charges, doesn't have an electric charge and is also found in the nucleus of an atom. Nucleus- The nucleus of the atom is consisted of the protons and neutrons and are located right in the center of the atom where both, protons and electrons are stuck together. Periodic Table Introduction What does the periodic table show? ? ? The periodic table is a chart, created by famous Russian scientist Dmitri Mendeleev. It shows all the elements that excist such as oxygen,It has specific facts about each of them such as the ones listed below : Atomic Number Mass Number Number of Protons in Atom Number of Electrons in Atom Chemical Symbol Number of Neutrons in Atom Metal / Nonmetal Chemical Activity Oxidation Number Electron Energy Levels Electron Energy Sublevels Orbitals within Sublevels Electron Configuration Families of Elements Natural / Manmade Physical State at Room Temperature Basic Structure The periodic table sometimes shows whether it is artificially made or whether it is radioactive or not. It is divided in metallic or non-metallic gases. It is also divided into other groups like halogen gas, noble gases, alkali metals and alkaline-earth elements. These groups go under the transition metals and most active metals. Periods in a periodic table are horizontal rows and are numbered from 1 to 7. Also, in a periodic table, elements with similar properties are put under each other in the vertical columns or groups. The following are a description of each of the 4 groups:

10. Quia - Chemistry - Top 20 Activities Try a user created chemistry activity or create one.Category Kids and Teens School Time Science chemistry...... 6, Polyatomic Ions Java Game Created by Dyann K. Schmidel. 7, chemistry ScavengerHunt Java Game Match the 9, Chemical elements and their Symbols Java Game Learn http://www.quia.com/dir/chem/

Chemistry - top 20 activities Quia users have created activities in the following topics. These activities have been created by Quia's subscribers and are of varying quality. Quia has not reviewed these, and some activities may contain inaccuracies. If you are a Quia subscriber, you may copy any of these activities and modify them for your own use. Create an activity Add your own activity Search Options (Choose from one of the following menus.) The 20 most popular activities in this topic are listed below. To list many more , select All activities by title or All activities by author All Activities ... Select ... top 20 only by title by author Subcategory ... Select ... Activity in French Activity in Hebrew Middle School Textbook/Resource ... Select ... Introduction to Matter Prentice Hall Directory 40 Element Symbols Learn the symbols for forty of the most common chemical elements. Created by Dyann K. Schmidel The pH Scale Order these items from low (acidic) to high (basic) pH. Pure water has a neutral pH. Created by Dyann K. Schmidel Binary Ionic Compounds Created by Melissa L. Shirley

11. Chemistry Interactive site that teaches the elements, periodic table, chemical reactions, and DNA. http://www.sprocketworks.com/topics/default.asp?topic=6

12. Periodic Table Of The Elements: Main Page An electronic processing of the Periodic Table. List of chemical elements and their properties, searching and testing software. Many useful functions which paper table doesn't have. http://www.tabulka.cz/english/

WAP.TABULKA.CZ All information about chemical elements and Periodic Table on your mobile phone's display. M ain page Ten most and least requested elements Text version Note: Elements 113, 115 and 117 haven't been isolated yet but we suppose that they exist. ICON Do you like these pages? If yes, you can add this icon on your page. For more information click here Jan Straka

13. EnvironmentalChemistry.com: Periodic Table Of Elements (Potassium) Additional Notes Formerly called kalium hence the symbol 'K'. chemistry Dictionary. PeriodicTable Sort elements by select order. http://environmentalchemistry.com/yogi/periodic/K.html

Periodic Table of Elements K - Potassium Part One Name in Other Languages Atomic Structure Chemical Properties Physical Properties Regulatory / Health Who/When/Where/How Part Two Nuclides (Isotopes) Potential Parent Nuclides Atomic Number Group Period Series: Alkali Metals Name in Other Languages Latin: Kalium Czech: Croatian: Kalij French: Potassium German: Kalium - s Italian: Potassio Norwegian: Kalium Portuguese: Russian: Spanish: Potasio Swedish: Kalium Atomic Structure Atomic Radius Atomic Volume mol Covalent Radius ... Crystal Structure Cubic body centered Electron Configuration: p p Electrons per Energy Level Shell Model Ionic Radius Filling Orbital Number of Electrons (with no charge): Number of Neutrons (most common/stable nuclide): Number of Protons Oxidation States Valance Electrons Electron Dot Model Chemical Properties Electrochemical Equivalent 1.4587g/amp-hr Electron Work Function Electronegativity (Pauling): Heat of Fusion 2.334kJ/mol Incompatibilities: Ionization Potential First Second Third Valance Electron Potential (-eV) Physical Properties Atomic Mass Average Boiling Point K C ... Conductivity Electrical: /cm Thermal: 1.024 W/cmK

14. Chemistry Resources: The Elements: Alkali Metals Brief profiles and pictures of each of the alkali metals, and the characteristic flame colors for their compounds. http://www.chemtopics.com/elements/alkali/alkali.htm

15. EnvironmentalChemistry.com: Periodic Table Of Elements (Hydrogen) Flash Point 20K 253°C -423°F Theoretical (there are no chemistry Dictionary. PeriodicTable Sort elements by select order. http://environmentalchemistry.com/yogi/periodic/H.html

Periodic Table of Elements H - Hydrogen Part One Name in Other Languages Atomic Structure Chemical Properties Physical Properties Regulatory / Health Who/When/Where/How Part Two Nuclides (Isotopes) Potential Parent Nuclides Atomic Number Group Period Series: Nonmetals Name in Other Languages Latin: Hydrogenium Czech: Croatian: Vodik French: German: Wasserstoft - r Italian: Idrogeno Norwegian: Hydrogen Portuguese: Russian: Spanish: Swedish: Atomic Structure Atomic Radius Atomic Volume mol Covalent Radius ... Crystal Structure Hexagonal Electron Configuration: Electrons per Energy Level Shell Model Ionic Radius Filling Orbital Number of Electrons (with no charge): Number of Neutrons (most common/stable nuclide): Number of Protons Oxidation States Valance Electrons Electron Dot Model Chemical Properties Electrochemical Equivalent 0.037605g/amp-hr Electron Work Function Electronegativity (Pauling): Heat of Fusion 0.05868kJ/mol Incompatibilities: metals, oxidizing materials, metal oxides, combustible materials, halogens, metal salts, halo carbons Ionization Potential First Valance Electron Potential (-eV) Physical Properties Atomic Mass Average Boiling Point K C ... Conductivity Electrical: Thermal: 0.001815 W/cmK

16. ChemPros : Chemical Trade And Technical Information In India Chemical portal, online trading, news, yellow pages, periodic table of elements, discussion forum, career, chemistry, prices http://www.chempros.com/

formatText('A GLOBAL TRADE MEDIUM'); document.write(''); formatText('FOR SERVICE PROVIDERS,'); document.write(''); formatText('TRADERS, MANUFACTURERS'); formatText('A CHEMICAL'); document.write(''); formatText('DISCUSSION FORUM') Although great care has been taken to provide consistent information, but in case, you do not find anything relevant to your requirement, please provide us your feedback , to enable us to assist you. Site best viewed in Microsoft Internet Explorer 4.0

17. Periodic Table Of The Elements - Potassium Periodic Table of the elements Potassium. K. Atomic Number 19. Symbol K.Atomic weight 39.0983. Discovery Davy 1807. Electron Configuration Ar4s1. http://chemistry.about.com/library/blk.htm

zfp=-1 About Homework Help Chemistry Search in this topic on About on the Web in Products Web Hosting Chemistry with Anne Marie Helmenstine Your Guide to one of hundreds of sites Home Articles Forums ... Help zmhp('style="color:#fff"') Subjects ESSENTIALS Periodic Table of the Elements Chemistry How-To Guide Chemical Structures Archive ... All articles on this topic Stay up-to-date! Subscribe to our newsletter. Advertising Free Credit Report Free Psychics Advertisement Periodic Table of the Elements Potassium K Atomic Number Symbol K Atomic Weight Discovery Davy 1807 Electron Configuration [Ar]4s Word Origin English potash pot ashes; Latin kalium , Arabic qali : alkali Isotopes There are 17 isotopes of potassium. Natural potassium is composed of three isotopes, including potassium-40 (0.0118%), a radioactive isotope with a half life of 1.28 x 10 years. Properties Uses Potash is in high demand as a fertilizer. Potassium, found in most soils, is an element that is essential for plant growth. An alloy of potassium and sodium is used as a heat transfer medium. Potassium salts have many commercial uses. Sources Potassium is the 7th most abundant element on earth, making up 2.4% of the earth's crust, by weight. Potassium is not found free in nature. Potassium was the first metal isolated by electrolysis (Davy, 1807, from caustic potash KOH). Thermal methods (reduction of potassium compounds with C, Si, Na, CaC

18. Selected Classic Papers From The History Of Chemistry Historically important papers in the fields of Atomic hypothesis and discrete nature of matter Electricity, electrochemistry, and electrolyte solutions The electron and electronic structure of matter elements nature, number, and discovery Environmental chemistry Gases Periodic table and periodic law Radioactivity and the nucleus Thermodynamics http://maple.lemoyne.edu/~giunta/papers.html

Selected Classic Papers from the History of Chemistry has moved to http://webserver.lemoyne.edu/faculty/giunta/papers.html Please adjust your bookmarks accordingly. I apologize for the inconvenience. Back to the top of the Classic Chemistry site

19. Actinides Illustrated article, covering the uses of these elements in nuclear chemistry, and related research initiatives. http://www.llnl.gov/str/Terminello.html

UNDERSTANDING the periodic table, with its assemblage of columns and rows of elements, has been a perennial challenge for chemistry students. (See the below.) Understanding at the atomic level a remarkable row of elements has been a particular research challenge for Lawrence Livermore scientists over the years. That row is called the actinides, a collection of 14 radioactive elements named after the element actinium. "There's a tremendous amount we don't know about the actinides," says Lawrence Livermore chemist Lou Terminello, who leads the Materials Science and Technology Division of the Chemistry and Materials Science Directorate. To learn more about these elements, he says, the Department of Energy funds about $100 million per year for research at Lawrence Livermore. The research is conducted by teams of chemists, physicists, engineers, metallurgists, and environmental scientists on a diverse set of national security and environmental issues. Terminello says that a more fundamental understanding of actinides is needed to better assess the nation's nuclear stockpile, help stem the clandestine proliferation of nuclear weapons, and better understand the implications of nuclear fuels' (such as enriched uranium) use and storage. Environmental contamination by actinides is also a major concern at several major DOE facilities. In addition, actinides such as uranium, neptunium, plutonium, and americium are the major contributors to the long-term radioactivity of nuclear waste currently targeted for the proposed Yucca Mountain repository in Nevada.

20. Syvum: Chemistry : Elements To Chemical Symbols Syvum Home K12 SAT GRE Languages Puzzles Downloads Web Shop ShoppingCart, Go to Syvum Home Page. chemistry elements to Chemical Symbols. http://www.syvum.com/cgi/online/serve.cgi/squizzes/chem/periodic1.tdf?0

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 1     1-20 of 112    1  | 2  | 3  | 4  | 5  | 6  | Next 20