21. General Chemistry Online: FAQ: The Periodic Table: What Elements Are Liquids At Two elements are liquid at room temperature (298 K) Or, why do relativisticeffects not get into chemistry textbooks? Journal of Chemical Education, http://antoine.frostburg.edu/chem/senese/101/periodic/faq/liquid-elements.shtml

Home Common Compounds Exam Guide FAQ Features Glossary Construction Kits Companion Notes ... Electrons in atoms The periodic table Chemical bonds Solids Liquids Solutions ... Next Question What elements are liquids at room temperature? Two elements are liquid at room temperature (298 K): Bromine (Br) , an reddish brown liquid with a suffocating odor, melts at 265.9 K. Mercury (Hg) , a toxic metal, melts at 234.32 K. (See Why is mercury a liquid at STP? Four elements melt just a few degrees above room temperature. Francium (Fr) , a radioactive and extremely reactive metal, melts around 300 K. The false color image at left shows 10,000 francium atoms in a laser trap. (For more about francium, see the Orozco group's francium research page at SUNY-Stony Brook.) Cesium (Cs) , a soft metal that violently reacts with water, melts at 301.59 K. Like francium, cesium's low melting point and softness is a consequence of the size of its atoms: Cs atoms are larger than those of any other known element . The positive charge of a Cs core is spread over the atom's large surface area, and less energy is required to push Cs atoms out of place in the metal.

22. 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.

23. General Chemistry Online: FAQ: History Of Chemistry: Why Are The Shells Named K, Why are the shells named K, L, M, instead of A, B, C.. Especially fascinatingwas the fact that elements emit Xrays when bombarded with streams of http://antoine.frostburg.edu/chem/senese/101/history/faq/why-KLMNOP.shtml

Home Common Compounds Exam Guide FAQ Features Glossary Construction Kits Companion Notes ... Laboratory History of chemistry Miscellaneous Home FAQ History of chemistry ... Next Question Why are the shells named K, L, M, ... instead of A, B, C...? Vocabulary atomic number cathode ray principal quantum number shell ... x-ray spectra A few years ago my sister, who is an accomplished seamstress, was asked to mend a 19th century dress. She was delighted by the many ingenious compromises between economy and extravagance in the dress's design. But the 7" wide tucks of extra fabric she found in the shoulder and side seams puzzled her at first, since in those times material was valuable and never wasted. She realized that the dress was meant to last a lifetime, and the extra cloth was added to allow the dress to grow with its wearer over the years. Apparently, the dress's owner hadn't expanded in accordance with 19th century expectations. The electron shell designations were started at K rather than A for similar reasons. Like the extra seam allowance on the dress, the letters A-J never had to be used. In the early twentieth century, scientists were intensely interested in X-rays, which had just been discovered. Especially fascinating was the fact that elements emit X-rays when bombarded with streams of fast-moving electrons (as in J. J. Thomson's cathode ray tube). This discovery is the basis for medical and dental X-ray machines.

24. Chemistry For Kids 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/

Atoms Matter Solids Liquids ... Authors Experiments: Oil and Water Moving Drop Balloon Blower ... Bibliography

25. ScienceDaily -- Browse Topics: Science/Chemistry/Elements Top Science chemistry elements KState Professor Assists In War On TerrorWith Bomb Detection Research (July 28, 2005) — Bill Dunn, a K-State http://www.sciencedaily.com/directory/Science/Chemistry/Elements

@import "/styles/navbar.css"; @import "/styles/tabStyles.css"; Set home page Bookmark site Add search Latest News ... Email to friend Text Size A A A Front Page ... Chemistry : Elements Subtopics Actinides Actinium Alkali Earth Metals Alkali Metals ... Zirconium See Also: Science: Chemistry: Periodic Table Search Google: Elements News Books Links ... Helping Out A High-temperature Superconductor (September 15, 2005) full story Compounds Found In Cruciferous Vegetables Block Lung Cancer Progression (September 15, 2005) full story Field Guide For Confirming New Earth-like Planets Described (September 14, 2005) full story Dusty Old Star Offers Window To Our Future, Astronomers Report (September 13, 2005) full story Chemicals Entering Coastal Waters: Freshwater And Saltwater Interactions In Coastal Groundwater (September 2, 2005) full story Groundbreaking Research Sheds Light On Easter Island's Ancient Mystery (September 1, 2005) full story Estrogen's Antioxidant Power May Play Key Role In Cerebral Blood Vessel Health (August 29, 2005) full story Green Catalyst Destroys Pesticides And Munitions Toxins, Finds Carnegie Mellon University (August 29, 2005) full story [ More news about Elements List Price: Amazon.com's Price:

26. 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 ICON Do you like these pages? If yes, you can add this icon on your page. For more information click here Jan Straka

27. ScienceDaily -- Browse Topics: Science/Chemistry/Elements/Iodine Radioactive Iodine Therapy Science chemistry elements Halogens Search Dietary Reference Intakes For Vitamin A, Vitamin K, Arsenic, Boron http://www.sciencedaily.com/directory/Science/Chemistry/Elements/Iodine

@import "/styles/navbar.css"; @import "/styles/tabStyles.css"; Set home page Bookmark site Add search Latest News ... Email to friend Text Size A A A Front Page ... Elements : Iodine Subtopics See Also: Health: Conditions and Diseases: Endocrine Disorders: Thyroid: Treatment: Radioactive Iodine Therapy Science: Chemistry: Elements: Halogens Search Google: Iodine News Books Links ... Ethanol Treatment May Be Instrumental In Fighting IV-based Infections (August 14, 2005) full story Malnutrition And Obesity Increasingly Co-exist In Global Community (August 5, 2005) full story Watching The Birth And Death Of Exotic Molecules (July 29, 2005) full story Thyroid-cancer Test Reveals Recurrence Early (July 1, 2005) full story Radioactive Isotope Is Effective Against Neuroblastoma (May 24, 2005) full story ESA Issues First Jules Verne Payload List (May 21, 2005) full story Researchers Study Radiation Blockers While Conducting Nuclear Imaging Of Iodine Uptake In Mouse Tissues (April 21, 2005) full story Perchlorate Found In Dairy And Breast Milk Samples From Across The Country (February 24, 2005) full story [ More news about Iodine Amazon.com's Price:

28. 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

29. Gigablast Search Results Science chemistry elements Transition Metals (3) www.chemicalelements.com/elements/au.html 8.2k - archived copy - stripped - older copies http://dir.gigablast.com/Science/Chemistry/Elements/Gold/

Family filter: On Off Entire Directory Entire Category Pages in Base Category Sites in Base Category Top Science Chemistry Elements ... Gold Related Categories: Business: Industrial Goods and Services: Materials: Metals: Gold Business: Investing: Commodities and Futures: Precious Metals: Gold Science: Earth Sciences: Geology: Rocks and Minerals: Metallic Deposits: Gold Science: Chemistry: Elements: Transition Metals ... ChemicalElements.com: Gold Basic information, atomic structure, and table of isotopes. www.chemicalelements.com/elements/au.html [archived copy] [stripped] [older copies] - indexed: Apr 28 2005 - modified: Feb 24 2005 EnvironmentalChemistry.com: Gold Atomic structure, chemical and physical properties, and table of nuclides. www.environmentalchemistry.com/yogi/periodic/Au.html [archived copy] [stripped] [older copies] - indexed: Apr 28 2005 It's Elemental: Gold Basic physical and historical information. education.jlab.org/itselemental/ele079.html [archived copy] [stripped] [older copies] - indexed: Apr 26 2005 - modified: Mar 08 2005 PDF Radiochemistry of Gold Full text of the monograph by J. F. Emery (Oak Ridge National Laboratory, Oak Ridge, Tennessee). [PDF]

30. 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://web.lemoyne.edu/~giunta/papers.html

Selected Classic Papers from the History of Chemistry The following papers from the history of chemistry are available as html files. Many are seminal papers in their fields. Some are interesting curiosities. Papers are arranged by subject below, or alphabetically Most of the entries reside either at the Classic Chemistry site at Le Moyne College or on the historical papers section of John Park's ChemTeam site. Links to classic papers outside the Classic Chemistry site are clearly credited. Analytical, instrumental, and spectroscopic techniques Atomic hypothesis and discrete nature of matter Biochemistry Bonding and Structure ... Others Analytical, instrumental, and spectroscopic techniques Gustav Kirchhoff and Robert Bunsen (1860): bright-line flame spectra (applied to alkali metals and alkaline earths). This paper is at the ChemTeam site. (Link to biographical data on Bunsen and Kirchhoff Chandrasekhara V. Raman and K. S. Krishnan : 1928 paper on the Raman effect (posted by Jim Holler , Department of Chemistry, University of Kentucky). View a biographical sketch of Raman.

31. Gigablast Search Results www.chemistry.org/periodic_table.html 21.5k - archived copy www.efunda.com/materials/elements/periodic_table.cfm - 47.1k - archived copy http://dir.gigablast.com/Science/Chemistry/Periodic_Table/

Family filter: On Off Entire Directory Entire Category Pages in Base Category Sites in Base Category Top Science Chemistry Individual Elements ... Software Related Categories: Science: Chemistry: Directories Science: Reference This category in other languages: German Spanish Swedish A Periodic Table of the Elements at Los Alamos National Laboratory [Very basic data, detailed write-ups] The Chemical Science and Technology division's Periodic Table describes the history, properties, resources, uses, isotopes, forms, costs, and other information for each element. Category: Kids and Teens: School Time: Science: Chemistry: Periodic Tables pearl1.lanl.gov/periodic/ [archived copy] [stripped] [older copies] - indexed: Apr 26 2005 - modified: Apr 19 2005 ChemicalElements.com: Online Periodic Table [Basic data, limited write-ups] Provides information on the 109 named elements plus elements 110 - 112. Category: Kids and Teens: School Time: Science: Chemistry: Periodic Tables Category: Kids and Teens: School Time: Science: Homework Help: Chemistry www.chemicalelements.com [archived copy] [stripped] [older copies] - indexed: Apr 28 2005 - modified: Feb 16 2005 Chemicool Periodic Table [Detailed information on each element, no write-ups]

32. 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.

33. These Chemistry Games And Quizzes Are Just Right For The K-12 Crowd. You'll Find These chemistry games and quizzes are just right for the K12 crowd. Can youmatch the names of the elements to their corresponding symbols? http://chemistry.miningco.com/od/gamesquizze1/

zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') About Homework Help Chemistry Chemistry for Kids ... 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 Chemistry Games / Quizzes for Kids These chemistry games and quizzes are just right for the K-12 crowd. You'll find matching, hangman, concentration, and more! Alphabetical Recent Up a category Amino Acid Hangman Game This hangman game makes a great quiz to make sure you know how to spell the names of the amino acids and to reinforce your knowledge of whether they have polar, nonpolar, or charged side chains. Grade 11+ Atom Basics Quiz Do you understand the basic concepts of atomic theory? Do you have your protons, electrons, and neutrons all sorted out? Here's a ten question multiple choice quiz to test your knowledge. Atom Hangman Game All of the words in this hangman game relate to atoms or parts of atoms. It's a fun and easy way to test your grasp of some elementary chemistry terms and concepts.

34. Welcome To The Gilheany Group Home Page Enantioselective synthesis, organophosphorus chemistry, organic chemistry of Main Group elements and the synthesis of medium rings and small multicyclic heterocycles. http://chemistry.ucd.ie/gilheany/welcome.html

Welcome to the Gilheany Group Home Page The Group Information about the group of Dr. Declan G. Gilheany , including and Present Members Topics include: Catalytic Asymmetric Synthesis: Epoxidation C-C Bond Formation Air Oxidation Organophosphorus Chemistry: P-Chiral Phosphorus Wittig Mechanism Bonding at Phosphorus Synthetic Projects: C-Substituted Hexoses Medium Rings Z Z ... Vacancies There are currently no vacancies in the research group. Department of Chemistry, University College Dublin, Belfield, Dublin 4. Ph: +353-1-716-2308 Fax: +353-1-706-2127 E-Mail: declan.gilheany@ucd.ie

35. BBC - H2g2 - Chemistry Of The Group 1 Elements - Li, Na, K, Rb, Cs, Fr h2g2 is the unconventional guide to life, the universe and everything, a guidethat s written by visitors to the website, creating an organic and evolving http://www.bbc.co.uk/dna/h2g2/A1002709

36. Argonne Chemistry Intranet (Internal Only) Windows program for the interactive analysis of crystal field spectra of fblock elements. http://chemistry.anl.gov/downloads/spectra/

Spectra Spectra is a program for paramagnetic ions energy levels calculations. It allows to calculate electronic structure of all elements with unfilled f-shells, including lanthanides and actinides in crystalline hosts. It could be used in scientific research, educational institutions, industry (laser materials, chemical analysis etc). User friendly Windows interface allows to customize the number of terms to be included in calculation (up to all terms in a given electronic configuration), obtain the values of reduced matrix elements for all d- and f-elements. Crystal field parameters could either be adjusted to fit experimental levels or calculated using exchange charge model (not included in this version). Fully consistent J-J' mixing is included for crystal field of any symmetry. Optical and ESR spectra can be analyzed using unified approach with exact decomposition of wavefunctions for each specific energy level. Free-ion Hamiltonian for f-electrons includes Coulomb interaction; configurational interaction; spin-orbit coupling; spin-spin and spin-other-orbit interaction, correction to spin-orbit coupling due to configuration interaction. Total number of free-ion parameters is 19: F2, F4, F6 for Coulomb interaction; dzeta for spin-orbit coupling; alpha, beta and gamma for two-body integrals in configuration interaction; T2, T3, T4, T6, T7, T8 for three-body configuration interaction; M0, M2, M4 for Marvin integrals of magnetic interactions; P2, P4, P6 for spin-orbit corrections due to configuration interaction.

37. Physical And Chemical Properties Of Potassium - Periodic Table Of The Elements Periodic Table of the elements Potassium. All Info About chemistry Symbol, K. Atomic Weight, 39.0983. Discovery, Davy 1807. http://chemistry.allinfoabout.com/periodic/k.html

All Info About Chemistry AIA Chemistry Topics Shop For Books With Amazon Potassium Return to the Periodic Table Potassium Facts 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 ) are also used to produce potassium. Sylvite, langbeinite, carnallite, and polyhalite form extensive deposits in ancient lake and sea beds, from which potassium salts can be obtained. In addition to other locations, potash is mined in Germany, Utah, California, and New Mexico.

38. ChemAP 2003 Periodic Table of elements to compare elements, calculate molecular weights, property visualisation, unit conversion. Windows http://www.pcsoftland.com/education/chemistry/chemap-2003.htm

39. Which Elements Are Liquids At Room Temperature? All Info About chemistry There are two elements that are liquid at roomtemperature or 298 K (25°C) and a total of six elements that can be liquids at http://chemistry.allinfoabout.com/features/liquidelements.html

All Info About Chemistry AIA Chemistry Topics Shop For Books With Amazon Which Elements are Liquids at Room Temperature? Bromine Mercury Francium Cesium Gallium Rubidium Bromine (symbol Br and atomic number 35) and mercury (symbol Hg and atomic number 80) are both liquids at room temperature. Bromine is a reddish-brown liquid, with a melting point of 265.9 K. Mercury is a toxic shiny silvery metal, with a melting point of 234.32 K. Francium, cesium, gallium, and rubidium are four elements that melt at temperatures slightly higher than room temperature. Francium (symbol Fr and atomic number 87), a radioactive and reactive metal, melts around 300 K. Francium is the most electropositive of all the elements. Cesium (symbol Cs and atomic number 55), a soft metal that violently reacts with water, melts at 301.59 K. The low melting point and softness of francium and cesium are a consequence of the size of their atoms. In fact, cesium atoms are larger than those of any other element. Gallium (symbol Ga and atomic number 31), a grayish metal, melts at 303.3 K. Gallium can be melted by body temperature, as in a gloved hand. Rubidium (symbol Rb and atomic number 37) is soft, silvery-white reactive metal, with a melting point of 312.46 K. Rubidium spontaneously ignites to form rubidium oxide. Like cesium, rubidium reacts violently with water. For more information on elements, click on an element symbol in the

40. Journal Of Inorganic Biochemistry Publishes research papers and short communications in the following areas the chemistry, structure, and function of metalloenzymes; the interaction of inorganic ions and molecules with proteins and nucleic acids; the preparation and properties of coordination complexes of biological interest including both structural and functional model systems; the role of metalcontaining systems in the regulation of gene expression; the application of spectroscopic methods to determine the structure of metallobiomolecules; the function of trace elements in living systems; and related subjects. http://www.elsevier.com/wps/find/journaldescription.cws_home/505772/description

Home Site map Regional Sites Advanced Product Search ... Journal of Inorganic Biochemistry Journal information Product description Editorial board Audience Abstracting/indexing ... Special issues and supplements For Authors Guide for authors Online Submission Subscription information Bibliographic and ordering information Conditions of sale Dispatch dates Journal related information Impact factor Most downloaded articles Other journals in same subject area About Elsevier ... Select your view JOURNAL OF INORGANIC BIOCHEMISTRY An Interdisciplinary Journal Editor-in-Chief: J.H. Dawson See editorial board for all editors information Online article submission now available via: http://authors.elsevier.com/jnlnr/7711 Description The Journal of Inorganic Biochemistry is an established international forum for research in all aspects of Biological Inorganic Chemistry. Original papers of a high scientific level are published in the form of Articles (full length papers), Short Communications, Focused Reviews and Bioinorganic Methods. Topics include: the chemistry, structure and function of metalloenzymes; the interaction of inorganic ions and molecules with proteins and nucleic acids; the synthesis and properties of coordination complexes of biological interest including both structural and functional model systems; the function of metal- containing systems in the regulation of gene expression; the role of metals in medicine; the application of spectroscopic methods to determine the structure of metallobiomolecules; the preparation and characterization of metal-based biomaterials; and related systems. The emphasis of the Journal is on the structure and mechanism of action of metallobiomolecules.

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