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Bromine (pronounced /ˈbroʊmiːn/ BROH-meen or /ˈbroʊmɨn/ BROH-min; from Greek: βρῶμος, brómos, meaning "stench (of he-goats)"), is a chemical element with the symbol Br and atomic number 35. A halogen element, it is, along with mercury, the only strictly liquid element at room temperature, but cesium, rubidium, francium and gallium are quite close. Bromine vapors are corrosive and toxic. Approximately 556,000 metric tons were produced in 2007. The main applications for bromine are in fire retardants and fine chemicals. From Wikipedia under the
GNU Free Documentation License  elements.vanderkrogt.net 193px x 197px | 10.00kB [source page] History Etymology Bromine was discovered by two scientists working independently Antoine Jerome Balard 1802 1876 who was working in a pharmacy school in Montpellier studying the brown seaweed Fucus  edinphoto.org.uk 269px x 450px | 15.80kB [source page] Iodide Bromide Box Reproduced by courtesy of Edinburgh Photographic Society From Yahoo Image Search: "Bromine"  svn.openqa.org rbp hu, 22 Jul 2010 18:40:28 GM /trunk/app/controllers/seleniumserver_controller.php, 1061, (+81 -126), view, diffs. /trunk/app/models/node.php, 1061, (+26 -21), view, diffs. /trunk/app/models/test.php, 1061, (+17 -0), view, diffs. svn.openqa.org jpp Fri, 16 Jul 2010 22:31:47 GM 970, jpp, Fri, 16 July 2010, 17:31:47 -0500. changed qrtz table to lowercase, commited a sql file instead with the changes. /trunk/app/config/sql/. bromine. .sql, 970, (+230 -133), view, diffs.  inground-swimming-pool.net zidit Mon, 12 Jul 2010 13:31:27 GM The two most common chemicals used to achieve this purpose are pool chlorine and . bromine. .inactive and can no longer continue to sanitize the water. When swimming pool . bromine. dissolves at a much slower rate than chlorine does, ... From Google Blog Search: "Bromine"  azom.com Thu, 24 Jun 2010 11:59:00 GMT+00:00 and Crude Salt Manufacturing Assets Azom.com Gulf Resources, Inc. (Nasdaq: GFRE) ("Gulf Resources" or the "Company"), a leading manufacturer of bromine , crude salt and specialty chemical products in ...  tech.fortune.cnn.com Wed, 23 Jun 2010 16:35:23 GMT+00:00 Fortune 1:37 Talking about their being eco-friendly, PVC-free handset, bromine -free printed circuit boards, Mercury-free LCD display. Next! 1:38 Rubin's turn. ... Google and Motorola Unveil the New Droid [LIVE] Mashable (blog) Droid X hopes to steal iPhone 4's thunder Pocket-lint.com  marketwatch.com Tue, 15 Jun 2010 14:56:44 GMT+00:00 MarketWatch Analysts at Psagot said that after a talk with Israel Chemicals management, they expect "a very strong" second-quarter "with volumes of potash and bromine ... From Google News Search: "Bromine" Why is bromine a liquid and fluorine a gas? Q. Really need help with this, don't particularly get it... Fluorine, F , is a gas, and Bromine, Br , is a liquid at room temperature. Discuss the different states of these elements at room temperature. Please include in your answer information on particle separation, energy, particle motion and the attractive forces between the particles. Asked by R S - Wed Dec 19 21:14:40 2007 - - 3 Answers - 0 Comments A. Bromine simply has more electrons than fluorine, so there is more chance of there being a polar imbalance, thus resulting in stronger dispersion forces between molecules. To become a gas, a substance must break these combined Van Der Waals forces, so if the forces are stronger, it requires more energy to break them. Bromine is a liquid because room temperature is not hot enough to overcome the strong dispersion forces. This also accounts for the fact that iodine is solid at room temperature. Answered by RavenSierra - Wed Dec 19 21:53:47 2007 How many unshared electrons do bromine have? Q. I have a Br connected to a Carbon and i am unsure of how many unshared electrons to pair around the Bromine, please help! Thank you Asked by DominoSweetie - Tue Jan 26 17:40:35 2010 - - 1 Answers - 0 Comments A. 6 electrons go around the bromine. Answered by Stormy - Tue Jan 26 17:45:14 2010 What is the atomic mass of bromine isotope?
Q. there are two different isotopes of bromine atom. Under normal conditions, elemental bromine consists of Br2 molecules and the mass of a bromine molecule is the sum of the two atoms in the molecule. The mass spectrum of bromine consists of three peaks: Mass(amu) Peaks Relative Size 157.836 0.2569 159.834 0.4999 161.832 0.2431 a)What is the isotopic composition of each peak? b)What is the atomic mass of each isotope? c)Determine the average mass of Br2 molecule. d)Determine the average atomic mass of a bromine atom. e)What is the percent abundance of the two isotopes? Please help!!! I am so confused... Asked by yvonll - Mon May 7 23:52:02 2007 - - 1 Answers - 0 Comments A. Since all the bromine molecules are diatomic, the masses can be had by just dividing the molecular weigts by 2. So the atomic masses must be 79 and 81. The average mass would be (157.836 x 0.2569 + 159.834 x 0.4999 + 161.832 x 0.2431)/2. The isotopes will be present in almost equal quantities, with the lighter one a bit more. Answered by rhsaunders - Tue May 8 00:22:38 2007 From Yahoo Answer Search: "Bromine" |
