61. Chemistry, Interactive And Printable Periodic Table Of The Elements Printable Interactive periodic table of the elements, chemistry data tables and pictures of elements. http://profmokeur.ca/chemistry/

62. Chemistry - Links For Chemists - Information - Periodic Tables Links for Chemists (19952005) is an index of chemistry resources on the WWW, Table of Rejected elements US; Periodic Table of the elements @ A K http://www.liv.ac.uk/Chemistry/Links/refperiodic.html

Links for Chemists Chemistry section of the WWW Virtual Library Virtual Library Science Chemistry : Periodic Tables Before browsing below... the tables you should visit first are... Visual Elements Periodic Table @ Chemsoc.org UK WebElements @ Sheffield UK You might wish to listen to Tom Lehrer's Elements song (flash animated), it is available here as an audio file and you can also 4bookmark read the lyrics Now on to the rest... 3D Periodic Table of Radii @ Washington State US Apsidium DE (Suomeksi) FI ChemEasy US ChemGlobe CH Chemical Elements and their Symbols @ The Learning Group US Chemical Elements.com US ChemiCool US Chinese Periodic Table @ Ithica US Comicbook Periodic Table @ Kentucky US Development of the Periodic Table @ Western Oregon US Dr Rob's Periodic Table UK Elementistory @ DeMontfort UK Extended Periodic Table US Extended Periodic Table of the Elements US General, Organic and Biochemistry - Periodic Table of the Elements @ Akron US Historical Periodic Table in Russian @ Moscow State RU Java-based interactive Periodic Table @ Cambridge UK Java Periodic Table @ Purdue US JavaScript Periodic Table Of The Elements @ Propane CA Mokeur's Periodic Table CA NMR Periodic Table (Polish Periodic Table) PL Periodic Table @ Advanced.org US

63. Chemistry 1935 (1900 1958) Discovered artificial radioactivity, i.e., new radioactive elements produced by the bombardment of non-radioactive elements with particles or neutrons. Prize shared with his wife Ir¨ne Joliot-Curie. France, Institut du Radium, Paris, France. http://nobelprize.org/chemistry/laureates/1935/index.html

HOME SITE HELP ABOUT SEARCH ... EDUCATIONAL The Nobel Prize in Chemistry 1935 "in recognition of their synthesis of new radioactive elements" Frédéric Joliot Irène Joliot-Curie 1/2 of the prize 1/2 of the prize France France Institut du Radium Paris, France Institut du Radium Paris, France b. 1900 d. 1958 b. 1897 d. 1956 The Nobel Prize in Chemistry 1935 Presentation Speech Biography Nobel Lecture ... Other Resources The 1935 Prize in: Physics Chemistry Physiology or Medicine Literature ... Peace Find a Laureate: Who will win this year? Don't miss the Prize Announcements! » Games and Simulations » SITE FEEDBACK ... TELL A FRIEND Last modified April 13, 2005

64. C&EN: IT'S ELEMENTAL: THE PERIODIC TABLE - POTASSIUM Carrots, grapefruit, and onions all contain moderate levels of K, while foodssuch as kalium, or that I was a chemistry major who knew my elements. http://pubs.acs.org/cen/80th/potassium.html

Periodic Table Element Symbols Ac Ag Al Am Ar As At Au B Ba Be Bh Bi Bk Br C Ca Cd Ce Cf Cl Cm Co Cs Cr Cu Db Ds Dy Es Er Eu F Fe Fm Fr Ga Gd Ge H He Hf Hg Ho Hs I In Ir K Kr La Li Lr Lu Md Mg Mn Mo Mt N Na Nb Nd Ne Ni No Np O Os P Pa Pb Pd Pm Po Pr Pt Pu Ra Rb Re Rf Rh Rn Ru S Sb Sc Se Sg Si Sm Sn Sr Ta Tb Tc Te Th Ti Tl Tm U Uub Uuq Uuu V W Xe Y Yb Zn Zr Element Names Actinium Aluminum Americium Antimony Argon Arsenic Astatine Barium Berkelium Beryllium Bismuth Bohrium Boron Bromine Cadmium Calcium Californium Carbon Cerium Cesium Chlorine Chromium Cobalt Copper Curium Darmstadtium+ Dubnium Dysprosium Einsteinium Erbium Europium Fermium Fluorine Francium Gadolinium Gallium Germanium Gold Hafnium Hassium Helium Holmium Hydrogen Indium Iodine Iridium Iron Krypton Lanthanum Lawrencium Lead Lithium Magnesium Manganese Meitnerium Mendelevium Mercury Molybdenum Neodymium Neon Neptunium Nickel Niobium Nitrogen Nobelium Osmium Oxygen Palladium Phosphorus Platinum Plutonium Polonium Potassium Praseodymium Promethium Protactinium Radium Radon Rhenium Rhodium Rubidium Ruthenium Rutherfordium Samarium Scandium Seaborgium Selenium Silicon Silver Sodium Strontium Sulfur Tantalum Technetium Tellerium Terbium Thallium Thorium Thulium Tin Titanium Tungsten Uranium Vanadium Xenon Ytterbium Yttrium Zinc Zirconium Author Names M. Feroze Ahmed

65. Periodic Table Of The Elements Basic dataInteractive periodic table of the elements http://chemistry.about.com/library/blper5.htm

zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') About Homework Help Chemistry Element Facts Periodic Table of the Elements Homework Help Chemistry Essentials Encyclopedia of Chemistry ... Chemistry Glossary zau(256,152,145,'gob','http://z.about.com/5/ad/go.htm?gs='+gs,''); General Chemistry Branches of Chemistry Demos / Experiments Homework Help ... Help zau(256,140,140,'el','http://z.about.com/0/ip/417/C.htm','');w(xb+xb+' ');zau(256,140,140,'von','http://z.about.com/0/ip/496/7.htm','');w(xb+xb); FREE Newsletter Sign Up Now for the Chemistry newsletter! See Online Courses Search Chemistry Periodic Table of the Elements Click here for the list of element symbols. H He Li Be ... Transition Metal More Element Information Element Symbol Quiz Periodic Table Quiz Timeline of Element Discovery Trends (Periodicity) in the Periodic Table ... What Is the Most Abundant Element? From Anne Marie Helmenstine, Ph.D. Your Guide to Chemistry FREE Newsletter. Sign Up Now! zau(256,420,100,'ri','http://z.about.com/5/o/c.htm?gs='+gs,'') Most Popular Video Movie Review: 'Broken Flowers' Movie Review: 'Four Brothers' Movie Review: 'The Dukes of Hazzard' Movie Review: 'The Aristocrats' ... See other videos at About.com Advertisement Most Popular Atom Basics Quiz - Test Your Chemistry Knowledge Periodic Table of the Elements Glossary of Chemistry Terms Chemistry - Molecular and Chemical Structures ... Element Hangman Game What's Hot History of Matches Make Bath Salts (Scented an...

66. C&EN: IT'S ELEMENTAL: THE PERIODIC TABLE - POTASSIUM I explained that I was a chemistry major and was taking advantage of a wonderful I had an affinity for a number of elements, but I hadn t ever really http://pubs.acs.org/cen/80th/print/potassium.html

POTASSIUM W hat do you think of when you look at element number 19 on the periodic table? As a chemist, I suppose my head should be filled with images of chemically related things involving potassium, such as zeolite structures being charge-balanced by K , but instead I think of what has to be one of the all-time great pickup lines. I was doing chemical research at my college during the summer break and decided to attend a gathering at a friend's apartment. It was a small school, so there weren't many students aroundjust science enthusiasts like myself, those taking summer classes, and a handful of others there for random reasonsbut I hoped a lot of people would show up. As the night got under way, I noticed a not-so-bad-looking guy whom I'd seen around campus. Before long, I found myself face to face with him. He struck up a conversation that included the standard question about why I was on campus and not spending the summer relaxing by a pool somewhere, which is where he'd be if he didn't have to retake a class he'd failed the past semester. POTASSIUM AT A GLANCE Name: From the English potash.

67. Indexnet Basic An interactive period chart of the elements. http://www.karlazone.com/chemistry/

68. K-News: BRIEFS: Interactive Graphs Added To "Chemistry Of The Elements" KNews. The latest news about Knovel, an online service providing books anddatabases for chemistry of the elements (2nd Edition) presents a balanced, http://knovel.blogs.com/knews/2005/04/briefs_interact.html

hostName = '.blogs.com'; K-News The latest news about Knovel, an online service providing books and databases for scientists, engineers, technicians and students. Main April 21, 2005 BRIEFS: Interactive Graphs Added to "Chemistry of the Elements" Chemistry of the Elements (2nd Edition) presents a balanced, coherent and comprehensive account of the chemistry of the elements for both undergraduate and postgraduate students. This crucial central area of chemistry is full of ingenious experiments, intriguing compounds and exciting new discoveries. Knovel has just made this great reference even more exciting! Using the Knovel Graph Digitizer , Knovel has converted 61 elements, equilibria and other important graphs and phase diagrams in this title into interactive tools, allowing users to display, capture and save for export the coordinates of any point on any curve. April 21, 2005 in Briefs Permalink Recent Posts FEATURED TITLE: Open Access to Dictionary of Substances and Their Effects (DOSE) BRIEFS: Knovel Professional Society Partnership Program BRIEFS: Other Voices BRIEFS: Updated Titles ... Subscribe to this blog's feed Categories Briefs Featured Titles From the Editor K-Bear ... December 2004 September 2005 Sun Mon Tue Wed Thu Fri Sat

69. Positive And Negative Ions The elements in Group II also make positive ions, but instead of losing a (Nobel chemistry prize winners and A Level chemistry students please note http://www.purchon.com/chemistry/ions.htm

Positive and Negative Ions Gondar Design Chemistry Index Flash 5 animations for chemistry Back Next A simple understanding of positive and negative ions will help you to predict the chemical formulae of most acids, bases and salts. Some atoms e.g. Sodium atoms, Potassium atoms, Fluorine atoms can easily turn into ions by losing or gaining electrons. The most reactive elements do this very readily. Elements like Neon, Argon, Krypton, and Xenon are very unreactive: it is virtually impossible for their atoms to lose or gain electrons. This means that it is not possible to find Neon ions or Argon ions etc. Positive ions Negative ions Stick them together All atoms are composed of and equal number of protons (in the nucleus) and electrons (orbiting around the nucleus). Apart from Hydrogen atoms, all atoms also contain Neutrons in their nuclei. Neutrons have no electric charge. Protons have a positive electric charge: P and electrons have a negative electric charge: e This means that if an atom has equal numbers of protons and electrons it will have no overall charge. When an atom loses an electron it must have more protons than electrons so it will have an overall positive charge: these are all positive ions. You will find these elements in the first column of the periodic table, this is Group I. H Li Na K The elements in Group II also make positive ions, but instead of losing a single electron, their atoms lose 2 electrons when they turn into ions: you will find these metals in the second column of your periodic table so they are Group II.

70. Acorn Education - Software, Chemistry Software chemistry !SparkPlug - David Pilling. This is the piece of kit needed to Contains properties of elements, 39.4K. RASMOL - Martin Würthner http://www.acornusers.org/education/Chemistry.html

Software - Chemistry !SparkPlug - David Pilling This is the piece of kit needed to de-archive the files on this site A-B-C - Chris Johnson Series First Order kinetics, 37.1K Energy - Chris Johnson Translational and rotational energies and populations, 42.9K Isomass - Chris Johnson Isotope abundancies, 34K Kinetic - Robert Seago Kinetic energies of gases in a box, 33K Molecule Demo - Roderick Ferguson Minimum energy conformation of molecules - DEMO, 36.2K MoleDraw - Simon Kilvington Acorn version of the popular structure drawing program, 337.2K MolWeight - Chris Johnson RMM Calculator, 35.9K ORTEP 3.1 - Kate Crennell (porter) Acorn port of the Oak Ridge Thermal Eliptoid Program, 307.9K Periodic - Chris Johnson Periodic table. Contains properties of elements, 39.4K RASMOL - Martin Würthner Acorn version of the molecular modeller and displayer package, 234.9K RMMCalc - Paul Johnson RMM Calculator. Requires the WimpBasic modules, 18.8K (calc), 49.6K (module). NEW VERSION - see here for more Wave Function - Chris Johnson Plots wave functions, 35.8K

71. Periodic Table -- From Eric Weisstein's World Of Chemistry Inorganic chemistry Chemical elements v Puddephatt, RJ and Monaghan, P K.The Periodic Table of the elements, 2nd ed. http://scienceworld.wolfram.com/chemistry/PeriodicTable.html

Chemistry Contributors Romero Inorganic Chemistry Chemical Elements Periodic Table This entry contributed by Dana Romero The periodic table displays all chemical Elements systematically in order of increasing atomic number i.e., the number of protons in the nucleus In 1869, Russian chemist Dmitri Mendeleev first described an arrangement of the chemical elements now known as the periodic table. Mendeleev wrote, "The elements, if arranged according to their atomic weights, show a distinct periodicity of their properties.... Elements exhibiting similarities in their chemical behavior have atomic weights which are approximately equal (as in the case of Pt, Ir, Os) or they possess atomic weights which increase in a uniform manner (as in the case of K, Rb, Cs)." isotopes of an element have the same number of protons but a different number of neutrons They are chemically very similar but have a different atomic masses Atom Atomic Mass Atomic Number ... Nuclide References Atkins, P. W. The Periodic Kingdom: A Journey into the Land of Chemical Elements. New York: BasicBooks, 1997. Chang, J. "Table of the Nuclides."

72. Freeware Home - Education > Chemistry Extensive information for all of the 112 elements of the modern Periodic Table . 5.0 by Advanced chemistry Development Size 7.9 m Windows 11Apr-2002 http://www.freewarehome.com/Education/Chemistry_t.html

Education > Chemistry (10) Sort by: Date Name SweetMollyGrace v. 1.1 by Rodomontano Size: 13.1 m Windows 24-Jun-2005 SweetMollyGrace is a suite of freeware tools for automating the work of rendering and animating molecules. Imports molecules in PDB, MOL XYZ format (Babel) Generates high quality images of molecules using raytracing tools (Povray and Raster3D). Makes 4 kinds of animation (only rotation around axes) using frames generated by Povray, Raster3D, Rasmol and Qmol. Saves animation in AVI, MPEG, GIF, MOV and FLIC. Generates and views 3D files. Visitor rating (26 votes) rate this program 5 (best) NOC v. 1.5 by Chenmengen Size: 1.7 m Windows 31-Mar-2005 NOC is a free program for protein structure model-building, visualization, validation and analysis. Features include: Auto-fit residues' side-chain against density data; Solid surface generation and electrostatic potential, hydrophobic force coloring; Potentials calculations; Customize molecular electronic density map contouring; Easy to add/delete heteroatom Group, residue. Easy to make an animated stream of a molecular model; WYSIWYG Labeling method; Easy to compare similar structures. NOC is free to students and educational institutions for non-commercial use. Visitor rating (4 votes) rate this program 5 (best) Dhaatu : The Periodic Table of Elements v. 2.40

73. Periodic chemistry THE PERIODIC TABLE - ELECTRONIC CONFIGURATION - BONDING Some Groupsof elements have names. The lithium group (Li Na K Rb Cs) are the alkali http://www.newi.ac.uk/buckleyc/periodic.htm

CHEMISTRY - THE PERIODIC TABLE - ELECTRONIC CONFIGURATION - BONDING David Harrison School of Science and Technology Athrofa Addysg Uwch Gogledd Ddwyrain Cymru North East Wales Institute of Higher Education Wrexham, NORTH WALES The Periodic Table The Periodic Table is much more than just a list elements or an aide-memoir. The great Russian chemist Dmitri Mendeleyev (1834-1907) proposed the idea in 1870 although in 1864 the English chemist John Newlands (1837-1898) noticed repetitions in properties when the elements were placed in order of weight, his "law of octaves", though this only led to his ridicule. You can read some of Newland's letters to the Editor of the Chemical News at http://web.lemoyne.edu/~giunta/newlands.html Johann Wolfgang Dobereiner 1 H 2 Li 3 Be 4 B 5 C 6 N 7 O 8 F 9 Na 10 Mg 11 Al 12 Si 13 P 14 S 15 Cl 16 K 17 Ca 19 Ti 20 V 21 Cr 22 Mn 23 Fe 24 Co 25 Ni 26 Cu 27 Zn 30 As 31 Se 32 Br Figure 1. Part of the Mendeleyev Periodic Table. Mendeleyev noticed that there were obvious gaps ( ) and one of the successes of his periodic table was that it predicted the likely existence of missing elements that were eventually discovered: 18 scandium (1879), 28 gallium (1875) and 29 germanium (1886). At the turn of the century a whole new family of elements helium, neon, argon, krypton and xenon were discovered and the Mendeleyev Table was modified to include the new elements in a new column at the right hand side. The modern Periodic Table permits the chemist to rationalize atomic structure, chemical behaviour, formulae, the structure and bonding in compounds etc., it is not simply a list of elements. The modern form of the Periodic Table owes its existence not only to Mendeleyev but to

74. MSDOS » Educational » Chemistry Quick help available in program. Useful for self education, school reference,and chemistry labs. Download, elements.zip (Aug 14 1989, 50.1K) http://www.bookcase.com/library/software/msdos.education.chemistry.html

Chemistry MSDOS Educational Summary: Periodic Table (Informative/SuperVGA) - ZaStaR License: Shareware Requires: Runs on any DOS computer that uses SuperVGA graphics (even under Win95). Email: zastar@uclink4.berkeley.edu Download: atoms1a.zip (Apr 7 1997, 32.6K) Description: ATOMS 1.00a is a periodic table packed with information including electro-negativity, boiling points, hazards, crystal structures, pH, thermo-conductivity, density, electron affinity, specific heat capacity, name origins, etc.. It compares element properties with colors. Pick out high and low boiling points at a glance. Learn chart trends. Colorful 1024x768 resolution, organized, and legible. Filled with animations including 3-D rendering. It is easy to use - just press buttons. Quick help available in program. Useful for self education, school reference, and chemistry labs. CCAL Summary: Chem Calculator for MW,%Composition,Equations Download: ccal9116.zip (May 25 1994, 136K) Summary: Rearrange, connect, solve chemistry equations Download: chem101b.zip

75. Chemistry - Elements & Compounds Element An element is a substance composed of the same type of atoms (eg gold Au K 1+, Zn 2+, OH 1-. hydroxide, SO4 2-. sulphate. Ag 1+, Pb 2+, NO3 1- http://qldscienceteachers.tripod.com/junior/chem/elements.html

setAdGroup('67.18.104.18'); var cm_role = "live" var cm_host = "tripod.lycos.com" var cm_taxid = "/memberembedded" Search: Lycos Tripod Free Games Share This Page Report Abuse Edit your Site ... Next AN ATOM Atom - smallest unit of all matter, that is composed of 3 sub-atomic particles called protons, electrons and neutrons Proton - the 'heavy' positively-charged particle in the nucleus of an atom Electron - the very 'light' negatively-charged particle that orbits the nucleus of an atom Neutron - the 'heavy' uncharged particle in the nucleus of an atom Uncharged or unreacted atoms have the same number of positive protons and negative electrons. Approximate size of atoms - Millions of atoms could fit on the sharp point of a needle. Also, if you imagine that an atom is the size of an oval, a proton and a neutron would be the size of footballs in the middle of the oval, and the electron would be the size of a rice grain racing around the running lane. ATOMIC NUMBER AND ATOMIC MASS An Example from the Periodic Table Atomic Number - the number of protons in an unreacted atom Mass Number - the number of protons and neutrons together ATOMIC DIAGRAMS Protons and neutrons are in the nucleus.

76. Nuclear Chemistry Alpha decay is the most common in elements with an atomic number greater than The relationship between the halflife of a radioactive substance and k, http://www.shodor.org/unchem/advanced/nuc/

HOME Course Chapters Calculator Fundamentals Mathematics Review Basic Concepts Advanced Concepts ... Integration Techniques Section Tests Pre-test Post-test Useful Materials Glossary Online Calculators Redox Calculator Kinetics Arrhenius Calculator Thermodynamics Calculator Nuclear Decay Calculator ... Nomenclature Calculator Related Information Links Texas Instruments Calculators Casio Calculators Sharp Calculators Hewlett Packard Calculators ... Contact Webmaster Nuclear Chemistry Nuclear Chemistry deals with the nuclei of atoms breaking apart. Atoms are continually undergoing decay. When studying nucle ar chemistry, there is a typical format used to represent specific isotopes. Nuclear equations are typically written in the format shown below. There are 5 different types of radioactive decay. Alpha decay follows the form: Where A is the parent isotope (the atom being broken apart) B is the daughter isotope or the isotope formed. When an element is broken down in alpha decay it looses two neutrons and two (2) protons. This means that the name of the element will change as well, moving back two (2) places on the per iodic table. Alpha decay is is not very penetrating because the He atoms capture electrons before traveling very far. However it is very damaging because the alpha particles can knock atoms off of molecules .Alpha decay is the most common in elements with an atomic number greater than 83. Beta negative decay follows the form: The beta emission increases the atomic number by one (1) by adding one (1) proton. At the same time, one (1)

77. Chemistry Glossary K; kelvin The SI Unit of temperature. It is the degrees celsius plus 273. There are many other trends such as size of elements and electronegativity http://www.shodor.org/unchem/glossary.html

HOME WebElements (Periodic Table) Course Chapters Mathematics Review Basic Concepts Advanced Concepts Section Tests Pre-test Post-test Useful Materials Glossary Links Texas Instruments Calculators Casio Calculators Sharp Calculators Hewlett Packard Calculators Calculators Units Conversion Lookup Nomenclature Redox Kinetics ... Contact Webmaster UNCChem Glossary Click on the first letter of the term. [ a b c d ... e ][f][ g h i ][j][ k l m n ... t ][u][ v w ][x][y][z] UNChem Main Page or Shodor Home Page A acceleration Measure of how fast velocity is changing, so we can think of it as the change in velocity over time. The most common use of acceleration is acceleration due to gravity which can also appear as the gravitational constant (9.8 m/s acid Compound that gives off H ions in solution. acidic Describes a solution with a high concentration of H ions. anion Ions with a negative charge anode The electrode where electrons are lost (oxidized) in redox reactions. area Measures the size of a surface using length measurements in two dimensions. associativity A property in math which states that: (A+B)+C=A+(B+C) and (A*B)*C=A*(B*C) atmospheres Common units for measuring pressure.

78. Kyoung-Shin Choi - Purdue University Department Of Chemistry This research combines disciplines of inorganic solid state chemistry, Considering all the possible combinations of elements and particle sizes, http://www.chem.purdue.edu/people/faculty/faculty.asp?itemID=30

79. Crystal Chemistry It is useful to discuss mineral chemistry in terms of major elements Considerable amounts of K+, Rb+, H2O and CO2 can be found in these structures. http://darkwing.uoregon.edu/~jrice/geol_311/Chemistry.html

J.M. Rice GEOL. 311 Earth Materials Winter 2005 Crystal Chemistry Chemical Composition of the Earth and Crust of the Earth We can better understand the wide variety of different mineral species and the variations exhibited by individual mineral species by recognizing the gross chemical features of the Earth and especially of the crust. The table below illustrates the major elements present in the whole Earth and crust. Element Wt.% in Whole Earth Wt. % in Crust Oxygen Iron Silicon Magnesium Nickel Calcium Aluminum Sodium + Potassium All Others Another interesting way to look especially at the chemical composition of the crust is shown in Figure 10-1. While Oxygen comprises almost half of the crust by weight, it occupies almost 94% by volume! This is directly reflected in minerals as well. Oxygen is the most dominant anion in crustal minerals, and as you would predict from the numbers, the silicate minerals make up the bulk of the crustal rocks. Recall from your exploration of radius ratios and the close packing of spheres, Oxygen anions in a close packed array make up the bulk of a mineral's structure. Small cations such as Si, Al, Mg, Fe, Ca, and others occupy a volumetrically small portion of the mineral structure, being confined largely to the voids between the Oxygen anions. Put in other words, the Earth's crust, on an atomic scale consists essentially of a close packing of oxygen anions with interstitial metal cations, chiefly Silicon

80. Crystal Chemistry Atoms make up the chemical elements. Each chemical element has nearly identicalatoms. Every atom of K has 19 protons. The Atomic number of K=19. http://www.tulane.edu/~sanelson/eens211/crystal_chemistry.htm

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