Where is br on the periodic table

A complete list of derivations of the names of the elements may be found here. Generic names and symbols are given to artificially produced elements which have been reported but not yet assigned official names. These names and symbols are assembled from the digits in the atomic number of the element, plus the ending - ium. From the Greek word bromos, stench. Discovered by Balard in , but not prepared in quantity until A member of the halogen group, bromine is obtained from natural brines from wells in Michigan and Arkansas.

Some bromine is extracted today from seawater, which contains only about 85 ppm. Bromine is the only nonmetallic liquid element. It is a heavy, mobile, reddish-brown liquid, volatilizing readily at room temperature to a red vapor with a strong disagreeable odor, resembling chlorine, and having a very irritating effect on the eyes and throat; it is readily soluble in water or carbon disulfide, forming a red solution, is less active than chlorine but more so than iodine; it unites readily with many elements and has a bleaching action; when spilled on the skin it produces painful sores.

This is calculated by combining the scores for crustal abundance, reserve distribution, production concentration, substitutability, recycling rate and political stability scores.

The percentage of a commodity which is recycled. A higher recycling rate may reduce risk to supply. The availability of suitable substitutes for a given commodity.

The percentage of an element produced in the top producing country. The higher the value, the larger risk there is to supply. The percentage of the world reserves located in the country with the largest reserves.

A percentile rank for the political stability of the top producing country, derived from World Bank governance indicators. A percentile rank for the political stability of the country with the largest reserves, derived from World Bank governance indicators. Specific heat capacity is the amount of energy needed to change the temperature of a kilogram of a substance by 1 K. A measure of the stiffness of a substance. It provides a measure of how difficult it is to extend a material, with a value given by the ratio of tensile strength to tensile strain.

A measure of how difficult it is to deform a material. It is given by the ratio of the shear stress to the shear strain. A measure of how difficult it is to compress a substance. It is given by the ratio of the pressure on a body to the fractional decrease in volume. A measure of the propensity of a substance to evaporate. It is defined as the equilibrium pressure exerted by the gas produced above a substance in a closed system. This Site has been carefully prepared for your visit, and we ask you to honour and agree to the following terms and conditions when using this Site.

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Glossary Group A vertical column in the periodic table. Fact box. Glossary Image explanation Murray Robertson is the artist behind the images which make up Visual Elements. Appearance The description of the element in its natural form. Biological role The role of the element in humans, animals and plants. Natural abundance Where the element is most commonly found in nature, and how it is sourced commercially. Uses and properties. Image explanation. The image intends to reflect the rich colour, liquidity and aromatic nature of the element.

Bromine is a deep-red, oily liquid with a sharp smell. It is toxic. Bromine is used in many areas such as agricultural chemicals, dyestuffs, insecticides, pharmaceuticals and chemical intermediates. Some uses are being phased out for environmental reasons, but new uses continue to be found.

Bromine compounds can be used as flame retardants. They are added to furniture foam, plastic casings for electronics and textiles to make them less flammable.

However, the use of bromine as a flame retardant has been phased out in the USA because of toxicity concerns. Organobromides are used in halon fire extinguishers that are used to fight fires in places like museums, aeroplanes and tanks.

Silver bromide is a chemical used in film photography. Before leaded fuels were phased out, bromine was used to prepare 1,2-di-bromoethane, which was an anti-knock agent. Biological role. Bromine is present in small amounts, as bromide, in all living things. However, it has no known biological role in humans.

Bromine has an irritating effect on the eyes and throat, and produces painful sores when in contact with the skin. Natural abundance.

Bromine is extracted by electrolysis from natural bromine-rich brine deposits in the USA, Israel and China. It was the first element to be extracted from seawater, but this is now only economically viable at the Dead Sea, Israel, which is particularly rich in bromide up to 0. Help text not available for this section currently. Elements and Periodic Table History. He took the concentrated residue which remained after most of the brine had evaporated and passed chlorine gas into it.

In so doing he liberated an orange-red liquid which he deduced was a new element. He was asked to produce more of it, and while he was doing so Balard published his results and so became known at its discoverer. Atomic data. Bond enthalpies. Glossary Common oxidation states The oxidation state of an atom is a measure of the degree of oxidation of an atom. Oxidation states and isotopes. Glossary Data for this section been provided by the British Geological Survey.

Relative supply risk An integrated supply risk index from 1 very low risk to 10 very high risk. Recycling rate The percentage of a commodity which is recycled. Substitutability The availability of suitable substitutes for a given commodity.

Reserve distribution The percentage of the world reserves located in the country with the largest reserves. Political stability of top producer A percentile rank for the political stability of the top producing country, derived from World Bank governance indicators.