Bromine ( or ; from, meaning " stench ( of he-goats )") is a chemical element with the symbol Br, and atomic number of 35.

Bromine has two stable isotopes, < sup > 79 </ sup > Br ( 50. 69 %) and < sup > 81 </ sup > Br ( 49. 31 %).

Colour code: Carbon, C: black Hydrogen, H: white Bromine, Br: red-brown Oxygen, O: red Structure calculated with Spartan Student 4. 1, using the PM3 semi-empirical method.

Bromine ( Br ) has two stable isotopes and 30 known unstable isotopes, the most stable of which is < sup > 77 </ sup > Br with a half-life of 57. 036 hours

In the early 19th century Ignacy Fonberger, a professor at the University of Vilnius, analyzed the chemical composition of Druskininkai's waters and showed that they contain large amounts of Calcium, Sodium, Potassium, Iodine, Bromine, Iron and Magnesium.

Bromine is included as an ozone-depleting chemical because although it is not as abundant as chlorine, it is 45 times more effective per atom in destroying stratospheric ozone.

Bromine is rarer than about three-quarters of elements in the Earth's crust ; however, the high solubility of bromide ion has caused its accumulation in the oceans, and commercially the element is easily extracted from brine pools, mostly in the United States, Israel and China.

* Chemistry in its element podcast ( MP3 ) from the Royal Society of Chemistry's Chemistry World: Bromine

For an alternative listing of inorganics containing bromine please see inorganic compounds by element # Bromine.

Bromine has no known essential role in human or mammalian health, but inorganic bromine and organobromine compounds do occur naturally, and some may be of use to higher organisms in dealing with parasites.

Columbia County, along with Union County, is home to the largest Bromine reserve in the United States.

* Reaction of Cyclohexene with Bromine and Potassium Permanganate

* Bromine monochloride ( BrCl ) is a red-brown gas with a boiling point of 5 ° C.

* Bromine pentafluoride ( BrF < sub > 5 </ sub >) is a colourless fuming liquid, made by reacting bromine trifluoride with fluorine at 200 ° C.

Bromine is trapped with iron turnings to give a solution of ferric bromide.

In the early 1980s, the concentration of ionic species ( in g / kg ) of Dead Sea surface water was Cl < sup >−</ sup > ( 181. 4 ), Br < sup >−</ sup > ( 4. 2 ), SO < sub > 4 </ sub >< sup > 2 −</ sup > ( 0. 4 ), HCO < sub > 3 </ sub >< sup >−</ sup > ( 0. 2 ), Ca < sup > 2 +</ sup > ( 14. 1 ), Na < sup >+</ sup > ( 32. 5 ), K < sup >+</ sup > ( 6. 2 ) and Mg < sup > 2 +</ sup > ( 35. 2 ).

The halogens or halogen elements are a series of nonmetal elements from group 17 of the periodic table ( formerly: VII, VIIA ), comprising fluorine ( F ), chlorine ( Cl ), bromine ( Br ), iodine ( I ), and astatine ( At ).

Several other compounds are known to combine indium ( I ) and indium ( III ), such as In < sup > I </ sup >< sub > 6 </ sub >( In < sup > III </ sup > Cl < sub > 6 </ sub >) Cl < sub > 3 </ sub >, In < sup > I </ sup >< sub > 5 </ sub >( In < sup > III </ sup > Br < sub > 4 </ sub >)< sub > 2 </ sub >( In < sup > III </ sup > Br < sub > 6 </ sub >), In < sup > I </ sup > In < sup > III </ sup > Br < sub > 4 </ sub >.

The ozone layer can be depleted by free radical catalysts, including nitric oxide ( NO ), nitrous oxide ( N < sub > 2 </ sub > O ), hydroxyl ( OH ), atomic chlorine ( Cl ), and atomic bromine ( Br ).

As Johnny sneaks away from the plantation, he is attracted by the voice of Uncle Remus ( the main character of the film ), telling tales " in his old-timey way " of a character named Br ' er Rabbit.

Parks wrote a series of children's books ( Jump ( with Malcolm Jones ), Jump Again and Jump on Over ), based around the Br ' er rabbit tales, illustrated by Barry Moser, and loosely accompanied by Parks ' own album Jump !.

Tule ( pronounced )( Ture ), which means " spider " in Zande, is sometimes portrayed as a trickster, similar to Anansi or Br ' er Rabbit.

The name was coined in 1948 by Christian Dotremont from the initials of the members ' home cities: Copenhagen ( Co ), Brussels ( Br ), Amsterdam ( A ).

This is usually done by " chemical experience ": in the above example, hydrogen bromide dissolves in water to form H < sup >+</ sup > and Br < sup >–</ sup > ions, so it may be assumed that bromine is more electronegative than hydrogen.

1, 2-Dibromoethane, also known as ethylene dibromide ( EDB ), is the organobromine compound with the chemical formula ( CH < sub > 2 </ sub > Br )< sub > 2 </ sub >.

The electrophiles frequently seen in the organic syntheses are cations such as H < sup >+</ sup > and NO < sup >+</ sup >, polarized neutral molecules such as HCl, alkyl halides, acyl halides, and carbonyl compounds, polarizable neutral molecules such as Cl < sub > 2 </ sub > and Br < sub > 2 </ sub >, oxidizing agents such as organic peracids, chemical species that do not satisfy the octet rule such as carbenes and radicals, and some lewis acids such as BH < sub > 3 </ sub > and DIBAL.

In proton NMR of methyl halides ( CH < sub > 3 </ sub > X ) the chemical shift of the methyl protons increase in the order I < Br < Cl < F from 2. 16 ppm to 4. 26 ppm reflecting this trend.

Xylyl bromide, also known as methylbenzyl bromide or T-stoff, is a poisonous organic chemical compound with the formula C < sub > 8 </ sub > H < sub > 9 </ sub > Br, formerly used as a tear gas.

Stable < sup > 79 </ sup > Br exhibits a radioactive isomer, with a half-life of 4. 86 seconds.

The most abundant one is methyl bromide ( CH < sub > 3 </ sub > Br ) with an estimated 56, 000 tonnes produced by marine algae each year.

A list of formulas in Hill system order is arranged alphabetically, as above, with single-letter elements coming before two-letter symbols when the symbols begin with the same letter ( so B comes before Be, which comes before Br ).

The bond between the carbon and the bromine then undergoes heterolytic fission, with the bromine atom taking the donated electron and becoming the bromide ion ( Br < sup >−</ sup >), because a S < sub > N </ sub > 2 reaction occurs by backside attack.

In the context of particulate motion the Péclet numbers have also been called Brenner numbers, with symbol Br, in honour of Howard Brenner.

Uncle Remus takes the dog in and delights Johnny and his friends with the fable of Br ' er Rabbit and the Tar Baby, stressing that people shouldn't go messing around with something they have no business with in the first place.

Uncle Remus is also in the vicinity, and he is shocked when Br ' er Rabbit and several of the other characters from his stories appear in front of them and interact with the children.

* " Br ' er Rabbit and the Tar Baby ": about 12 minutes, interrupted with a short live-action scene about two thirds of the way into the cartoon, including the song " How Do You Do?

As had been done earlier with Snow White and the Seven Dwarfs, Walt Disney produced a Sunday strip titled Uncle Remus & His Tales of Br ' er Rabbit to give the film pre-release publicity.

In the first half of the 20th century, Malaysian English was exactly similar to British English ( Br E ) ( albeit spoken with a Malaysian accent ).

Bromomethane, commonly known as methyl bromide, is an organobromine compound with formula CH < sub > 3 </ sub > Br.

It exclusively deals with the Parvargya ritual, and is followed by the Brihad-Aranyaka Upanishad ( Satapatha Br.

The three-membered bromonium ion 2 consisted with two carbon atoms and a bromine atom forms with a release of Br < sup >−</ sup >.

I was in a position to guess what really happened with Br ’ s patient long after we parted company when I recalled a communication from Br dating from the time before our joint work and relating to another context, and which he never repeated.

Built in France, with a diameter of nearly 2 meters and 4. 8 meters in length, Gargamelle held nearly 12 cubic meters of freon ( CF < sub > 3 </ sub > Br ).

These react with the highly reactive H · and OH · radicals in the flame, resulting in an inactive molecule and a Cl · or Br · radical.