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1. #1 Site For Learning Chemistry
Z= 18) which has 2 electrons in the Kshell, 8 electrons in the L-shell and Oxidesof elements in the centre are amphoteric. 1 In advanced chemistry, you will
http://home.att.net/~cat6a/class_elem-VI.htm
Classification of Elements - Part VI
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Characteristics of periods
The first period starts with hydrogen (H) and ends with helium (He). It has just two elements H (Z=1) and He (Z = 2). H has one electron in the K-shell. He has 2 electrons in the K-shell. As we have seen in the chapter on the structure of atoms , the K-shell can hold only 2 electrons. Thus the first period is complete. It has to be borne in mind that the place of hydrogen is unique in the periodic table. It has been placed above the alkali elements starting with Li in group 1A. This is because H has valency 1 just as the other alkali elements. But the properties of hydrogen otherwise are very different from the other group 1A alkali elements Li, Na, K, Cs, etc. Now let us see the next periods : periods 2 and 3. The second period starts with Li (Z=3), where the K-shell is filled and the next shell, the L-shell is starting to fill. After Li the next element is beryllium (Be, Z=4). Its K-shell is complete and it has 2 electrons in the L-shell. The maximum number of electrons held in the L-shell is 8. So the period has 8 elements, in which each element’s L-shell is getting filled. The last element in the period is neon (Ne, Z=10). Neon’s both K and the L shell are completely filled. A similarly situation occurs for the third period. Here the next shell after L-shell, namely the M-shell is getting filled. The maximum number of electrons in the M-shell is 8. Thus across the period, starting with element sodium (Na, Z=11) the M-shell has 1 electron; and the period ends with argon (Ar, Z= 18) which has 2 electrons in the K-shell, 8 electrons in the L-shell and 8 electrons in the M-shell.

2. 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.
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3. Strontium Elements Chemistry
chemistry elements Strontium with other chemistry.designerz.com users. The comments shown above are user comments and do not represent the view of Designerz, L.L An AZ Guide to
http://chemistry.designerz.com/chemistry-elements-strontium.php
Map.Designerz.com Science.Designerz.com Chemistry News Chemistry Chat ...
Nobel Prize in Chemistry
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4. #1 Site For Learning Chemistry
Introduction to chemistry Part II. Keywords Help. Table below gives electronicconfiguration of some elements. Name of the element (symbol). K L M N.
http://home.att.net/~cat6a/chem_symbols.htm
Introduction to Chemistry - Part II
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Chemical Symbols
All Elements have been named by the scientists who had discovered them and do not have any particular nomenclature. Quite a few have Latin names. Some have English names also. Although the names are long, generally abbreviation of either first or first two letters represents the element. This is done for convenience only. Some elements are known commonly by their English names but the abbreviations followed are of their Latin names!! The abbreviations are called symbols and all the elements are represented by different symbols. Table below gives some of the names of the elements and their symbols. Common name of element Latin Name Symbol Hydrogen H Carbon C Sodium Natrium Na Chlorine Cl Iron Ferrum Fe Silver Argentum Ag Gold Aurum Au It has to be borne in mind that for an element represented by two lettered symbol, the first one is in capitals and second one is written as a lower case letter. This again is an adopted convention by scientists and is completely accepted by all. Chemical Formulae
Substances (either compounds or mixtures) can be written in combination of the symbols, but have to be written in correct proportion of the elements that are the constituents. The written representation of a molecule of a substance using symbols of constituent element is called the molecular or chemical

5. Periodic Table Of Elements By EnvironmentalChemistry.com
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
This periodic table of elements provides comprehensive data on the chemical elements including scores of properties, element names in many languages and most known nuclides (Isotopes). Below the table there is a " Chemical Elements Sorted By " section with links that will sort chemical elements by various properties.
What's New
Don't like banner ads? Well neither do we, but they are the most effective method for us to generate the revenues necessary to operate this site while making our content available free of charge. Now, however, we have an option that will reward those who directly support our efforts with the ability to access this site banner ad free. SUBSCRIBE TODAY Many elements now include a page of common chemicals and chemical formulas that contain the given element. These chemical compounds in turn are linked to a page that contains more information on the chemical compound. As the underlying chemical database is a work in process, some chemicals will have very detailed information while others will have only basic information. If you know of resources (including public domain databases, or financial grants that would allow us to license databases); or are responsible for a database of chemical compounds and would like to partner with EnvironmentalChemistry.com; please contact us. Of particular short term interest to us is a table of data that cross references chemical formulas to CAS Numbers and/or chemical names.

6. Gadolinium Elements Chemistry
chemistry elements Gadolinium with other chemistry.designerz.com users. The comments shown above are user comments and do not represent the view of Designerz, L.L An AZ Guide to
http://chemistry.designerz.com/chemistry-elements-gadolinium.php
Map.Designerz.com Science.Designerz.com Chemistry News Chemistry Chat ...
Nobel Prize in Chemistry
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7. THE CHEMICAL ELEMENTS
An introduction to elements and element characterization.
http://www.tryagain.com/chemistry/elements.htm

Metals

Non Metals

The Noble-Gas Elements

Metalloids
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.
    By far, most elements in the periodic table are metals (about three quarters). There are eight semi-metals (metalloids), six noble gases, and 12 non-metals.
    The current theory of the creation of the universe suggests that in the beginning there was only hydrogen the smallest atom, and then it fused into the larger atoms. Still today hydrogen is the most abundant atom in the universe (90% in count, 75% in weight).

    8. Classic Chemistry
    chemistry. elements and chemistry (presented in SundaySaturday weeks) and month-by-month chemical anniversaries. Glossary of archaic chemical terms ( Introduction and A-B, C-F, G-L, M-R, S-Z
    http://maple.lemoyne.edu/faculty/giunta

    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/
    var cm_role = "live" var cm_host = "angelfire.lycos.com" var cm_taxid = "/memberembedded"
    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. Chemistry Experiments For Kids - A To Z Home's Cool Homeschooling
    Easy chemistry experiments for home, school and science fair projects. chemistry classes, games and periodic tables for all ages from your Homeschooling Guide. G H I J K L M N O P Q Learn about elements, compounds and mixtures, and the Periodic Table.
    http://www.gomilpitas.com/homeschooling/directory/Chemistry.htm
    YOU ARE HERE: HOME EXPLORATIONS 4 KIDS SCIENCE EXPERIMENTS FOR KIDS
    Entertain Your Brain With Discovery Channel Store!
    A to Z Home's Cool Homeschooling Explorations 4 Kids I am Ann Zeise , your guide to the best and most interesting and useful sites and articles about home education on the web. Search
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    Chemistry Experiments For Kids
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    Chemistry Experiments
    Chemistry experiments you can do at home with easily found chemicals. Chemicals
    Learn about elements, compounds and mixtures, and the Periodic Table. Chemistry Classes
    Free high school chemistry lessons, lesson plans and games to help you master chemistry.

    11. Chemicals - A To Z Home's Cool Homeschooling
    Interative periodic tables of the elements. DVDs for Young Chemists AN A TO Z AFFILIATERent a DVD to help visually Chemical of the Week For AP chemistry teens
    http://homeschooling.gomilpitas.com/explore/chemicals.htm
    YOU ARE HERE: HOME EXPLORATIONS 4 KIDS CHEMISTRY EXPERIMENTS
    Earn your driving certificate from the comfort of your own computer. A to Z Home's Cool Homeschooling Explorations 4 Kids I am Ann Zeise , your guide to the best and most interesting and useful sites and articles about home education on the web. Search
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    Chemicals Understanding compounds and mixtures vs pure elements. Interative periodic tables of the elements.
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    DVDs for Young Chemists
    AN A TO Z AFFILIATE

    Rent a DVD to help visually explain atomic structure, matter, compounds and mixtures, and the periodic table. Learning guides included.

    12. ThinkQuest : Library : Chemistry
    Thinkquest site offering an overview of atoms, molecules, phases of matter, acids, bases, and elements. Includes games, quizzes, bibliography, and glossary.
    http://library.thinkquest.org/J001539/
    Index Physical Science Chemistry
    Chemistry
    Bubbling over with fun ways to learn, this site explores the basics of Chemistry. Compare the properties of solids, liquids and gases. Find out more about the elements that make up our world with simple and fun experiments. Visit Chemistry! Visit Site 2000 ThinkQuest USA Want to build a ThinkQuest site? The ThinkQuest site above is one of thousands of educational web sites built by students from around the world. Click here to learn how you can build a ThinkQuest site. Privacy Policy

    13. Le Sorgho Et Les Mils Dans La Nutrition Humaine - Bibliographie (L -
    Bibliographie (L Z) Table des matières Paschall, éds. Starch chemistry and technology. Vol. 1, Fundamental contribution of minerals, trace elements, phytin starch and amino
    http://www.fao.org/docrep/T0818F/T0818F0j.htm

    14. Chemistry Of Nonmetals
    Gives a description of nonmetals and several of the nonmetal elements. PDF Format
    http://www.miramar.sdccd.cc.ca.us/faculty/fgarces/zCourse/Spring03/Ch201/Ch201_L

    15. Chemistry Puns
    A test involving punny definitions of chemical elements.
    http://www.sciencebyjones.com/chemistry_puns.htm
    Chemistry Can Be Pun With a wild imagination and a flair for puns, you will be able to use the names of many of the elements to take the place of other words or phrases. Some are very straightforward, but many of homonyms require a stretch of the imagination. Be creative and have pun! 1. Police officer. 2. Lone Ranger's horse. 4. To press a blouse. 6. What should you do with dead people's bodies? 7. A fixture in your house with a faucet and a drain. 8. Wholenium x 0.5. 9. A ridiculous prisoner. 10. A burial chamber that weighs 2 000 pounds. 11. Guided or directed. 12. Grab that guy! 13. What do you do before you brand a steer. 14. A popular red or pink flower found in pots. 15. A Latin Mickey Mouse's dog. 16. Someone who helps people in distress is a good ." 18. What do you do if you are a big, dark cloud? ." 20. Funds from your mother's sister. 21. Opposite of hot. 22. A person from Norway, Sweden, or Finland. 23. A native American. him. 26. The kitchen on a Roman ship.

    16. Electronic Configuration Of The Elements - General Chemistry Table - Rubidium Th
    New Here? chemistry AZ. chemistry 101. chemistry FAQs. Science Fair Ideas elements 37-70, Rubidium-Ytterbium. elements 71-104, Lutetium-Rutherfordium. No. Element. K. L. M. N
    http://chemistry.about.com/library/weekly/aa013103b.htm
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    Stay Current
    Subscribe to the About Chemistry newsletter. Search Chemistry Electronic Configuration of the Elements Rubidium through Ytterbium Related Resources Periodic Table of the Elements
    Valences of Elements

    Periodic Properties of Elements

    Chemistry of Element Groups

    Here's a useful table for your chemistry homework or general use! This is a compilation of the electron configurations of the elements up through number 104. To arrive at the electron configurations of atoms, you must know the order in which the different sublevels are filled. Electrons enter available sublevels in order of their increasing energy. A sublevel is filled or half-filled before the next sublevel is entered. For example, the s sublevel can only hold two electrons, so the 1

    17. Malli Research
    Gulzari L. Malli. in the general area of ab initio relativistic quantum chemistryviz; to clusters and solids involving heavy and superheavy elements, with Z =75
    http://www.sfu.ca/chemistry/faculty/malli.htm
    Gulzari L. Malli
    Professor
    B.Sc.(Hons) Delhi University
    M.Sc., McMaster University
    M.S., Ph.D., University of Chicago Room C8074
    (604) 291-3530 Telephone
    (604) 291-3765 Fax Email: malli@sfu.ca
    QUANTUM CHEMISTRY AND CHEMICAL PHYSICS
    Current Research Program: Ab Initio Relativistic Quantum Chemistry
    Our main research interests lie in the general area of ab initio relativistic quantum chemistry viz; to develop theoretical and computational methodology for ab initio calculation of the relativistic as well as electron correlation effects in molecules, clusters and solids involving heavy and superheavy elements, with Z =75-112. Our research has led to the development of the "Relativistic Self-consistent Field Theory for Closed-Shell Molecules" : G.Malli and J.Oreg, J.Chem.Phys.63, 830 (1975) .We have reported the first ab initio all-electron Dirac-Fock (DF) relativistic self-consistent field (RSCF) calculations for a large number of diatomics and polyatomics involving heavy elements . We have also performed Dirac- scattered wave (DSW) SCF calculations on gold clusters with 3 to 13 gold atoms in various geometries . During the last decade, we have investigated both the effects of relativity and electron correlation using our fully relativistic Dirac-Fock SCF treatment and MP2.

    18. 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 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

    19. Chemistry Teaching Resources - Periodic Tables And Related Material
    chemistry from A to Z Upto-date interactive periodic Periodic Table of the elementsThe elements categorized in relationship of the quantum numbers (n, l, m l
    http://www.anachem.umu.se/cgi-bin/pointer.exe?PeriodicTables

    20. Selected Classic Papers
    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

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