Bromine

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Bromine,  35Br
Bromine 25ml.jpg
General properties
Appearance gas/liquid: red-brown
solid: metallic luster
Staundart atomic wecht (Ar, staundart) [79.90179.907] conventional: 79.904
Bromine in the periodic cairt
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gowd Mercur (element) Thallium Leid (element) Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
Cl

Br

I
seleniumbrominekrypton
Atomic nummer (Z) 35
Group group 17 (halogens)
Period period 4
Element category   diatomic nonmetal
Block p-block
Electron confeeguration [Ar] 4s2 3d10 4p5
Electrons per shell
2, 8, 18, 7
Pheesical properties
Phase (at STP) liquid
Meltin pynt 265.8 K ​(-7.2 °C, ​19 °F)
Bylin pynt 332.0 K ​(58.8 °C, ​137.8 °F)
Density (near r.t.) (Br2, liquid) 3.1028 g/cm3
Treeple pynt 265.90 K, ​5.8[1] kPa
Creetical pynt 588 K, 10.34[1] MPa
Heat o fusion (Br2) 10.571 kJ/mol
Heat o vapourisation (Br2) 29.96 kJ/mol
Molar heat capacity (Br2)
75.69 J/(mol·K)
Vapour pressur
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 185 201 220 244 276 332
Atomic properties
Oxidation states 7, 5, 4, 3, 1, -1
(strangly acidic oxide)
Electronegativity Pauling scale: 2.96
Atomic radius empirical: 120 pm
Covalent radius 120±3 pm
Van der Waals radius 185 pm
Color lines in a spectral range
Miscellanea
Creestal structurorthorhombic
Orthorhombic creestal structur for bromine
Speed o soond (20°C) 206 m/s
Thermal conductivity 0.122 W/(m·K)
Electrical resistivity 7.8×1010 Ω·m (at 20 °C)
Magnetic orderin diamagnetic[2]
CAS Nummer 7726-95-6
History
Diskivery Antoine Jérôme Balard an Leopold Gmelin (1825)
First isolation Antoine Jérôme Balard an Leopold Gmelin (1825)
Main isotopes o bromine
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
79Br 50.69% stable
81Br 49.31% stable
| references | in Wikidata

Bromine (frae [βρῶμος, brómos] error: {{lang-xx}}: text has italic markup (help), meanin "strang-smellin" or "stench")[3] is a chemical element wi the seembol Br, an atomic nummer o 35. It is in the halogen group (17). The element wis isolatit independently bi twa chemists, Carl Jacob Löwig an Antoine Jerome Balard, in 1825–1826. Elemental bromine is a fumin reid-broun liquid at ruim temperatur, corrosive an toxic, wi properties atween those o chlorine an iodine. Free bromine daes nae occur in naitur, but occurs as colorless soluble crystalline mineral halide sauts, analogous tae table saut.

References[eedit | eedit soorce]

  1. 1.0 1.1 Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nt ed.). CRC Press. p. 4.121. ISBN 1439855110. 
  2. Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5. 
  3. Turner, Edward (1828). Elements of chemistry: including the recent discoveries and doctrines of the science. p. 467. The name first applied to it by its discoverer is muride; but it has since been changed to brome..from the Greek βρῶμος signifying a strong or rank odour. This appellation may in the English language be properly converted into that of Bromine.