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The halogens (/ ˈ h æ l ə dʒ ə n, ˈ h eɪ-,-l oʊ-,-ˌ dʒ ɛ n / [1] [2] [3]) are a group in the periodic table consisting of six chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and the radioactive elements astatine (At) and tennessine (Ts), though some authors [4] would exclude tennessine as its chemistry is unknown and is theoretically expected to ...
There are currently 118 known chemical elements with a wide range of physical and chemical properties. Amongst this diversity, scientists have found it useful to apply names for various sets of elements that have similar properties, to varying degrees.
Halogen-containing natural products (5 C, 46 P) T. Tennessine (1 C, 2 P) Pages in category "Halogens" The following 12 pages are in this category, out of 12 total.
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A ball-and-stick model of a bromonium ion formed from cyclopentene. A halonium ion is any onium ion containing a halogen atom carrying a positive charge. This cation has the general structure R− + −R′ where X is any halogen and no restrictions on R, [1] this structure can be cyclic or an open chain molecular structure.
Halocarbon compounds are chemical compounds in which one or more carbon atoms are linked by covalent bonds with one or more halogen atoms (fluorine, chlorine, bromine or iodine – group 17) resulting in the formation of organofluorine compounds, organochlorine compounds, organobromine compounds, and organoiodine compounds.
All known halogen trifluorides have this molecular geometry and have a structure of AX 3 E 2 —a central atom, denoted A, surrounded by three ligands, X, and two unshared electron pairs, E. If relativistic effects are ignored, TsF 3 should follow its lighter congeners in having a bent-T-shaped molecular geometry.
Most interhalogens are halogen fluorides, and all but three (IBr, AtBr, and AtI) of the remainder are halogen chlorides. Chlorine and bromine can each bond to five fluorine atoms, and iodine can bond to seven. AX and AX 3 interhalogens can form between two halogens whose electronegativities are relatively close to one another. When ...
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