Bromine

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Bromine,  35Br
Bromine 25ml.jpg
General properties
Name, seembol bromine, Br
Appearance gas/liquid: red-brown
solid: metallic luster
Pronunciation /ˈbrmn/ BROH-meen
or /ˈbrmn/ BROH-min
Bromine in the periodic cairt
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline yird metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline yird metal)
Aluminium (post-transeetion metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline yird metal)
Scandium (transeetion metal)
Titanium (transeetion metal)
Vanadium (transeetion metal)
Chromium (transeetion metal)
Manganese (transeetion metal)
Airn (transeetion metal)
Cobalt (transeetion metal)
Nickel (transeetion metal)
Capper (transeetion metal)
Zinc (transeetion metal)
Gallium (post-transeetion metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline yird metal)
Yttrium (transeetion metal)
Zirconium (transeetion metal)
Niobium (transeetion metal)
Molybdenum (transeetion metal)
Technetium (transeetion metal)
Ruthenium (transeetion metal)
Rhodium (transeetion metal)
Palladium (transeetion metal)
Siller (transeetion metal)
Cadmium (transeetion metal)
Indium (post-transeetion metal)
Tin (post-transeetion metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline yird metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transeetion metal)
Tantalum (transeetion metal)
Tungsten (transeetion metal)
Rhenium (transeetion metal)
Osmium (transeetion metal)
Iridium (transeetion metal)
Platinum (transeetion metal)
Gold (transeetion metal)
Mercur (transeetion metal)
Thallium (post-transeetion metal)
Leid (post-transeetion metal)
Bismuth (post-transeetion metal)
Polonium (post-transeetion metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline yird metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transeetion metal)
Dubnium (transeetion metal)
Seaborgium (transeetion metal)
Bohrium (transeetion metal)
Hassium (transeetion metal)
Meitnerium (unkent chemical properties)
Darmstadtium (unkent chemical properties)
Roentgenium (unkent chemical properties)
Copernicium (transeetion metal)
Ununtrium (unkent chemical properties)
Flerovium (post-transeetion metal)
Ununpentium (unkent chemical properties)
Livermorium (unkent chemical properties)
Ununseptium (unkent chemical properties)
Ununoctium (unkent chemical properties)
Cl

Br

I
seleniumbrominekrypton
Atomic nummer (Z) 35
Group, block group 17 (halogens), p-block
Period period 4
Element category   diatomic nonmetal
Staundart atomic wicht (±) (Ar) 79.904(1)
Electron configuration [Ar] 4s2 3d10 4p5
per shell
2, 8, 18, 7
Pheesical properties
Phase 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
Threeple 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
Miscellanea
Creestal structur orthorhombic
Orthorhombic crystal 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)
Maist stable isotopes o bromine
iso NA hauf-life DM DE (MeV) DP
79Br 50.69% 79Br is stable wi 44 neutrons
81Br 49.31% 81Br is stable wi 46 neutrons
· references

Bromine (frae Greek: βρῶμος, brómos, 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.