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  2. Benton County, Tennessee - Wikipedia

    en.wikipedia.org/wiki/Benton_County,_Tennessee

    The county was created in December 1835 and organized in 1836. [4] [5] Benton County is located in northwest Tennessee, bordering the western branch of the Tennessee River and 30 miles south of the Kentucky border. Aside from Camden, other major communities include agrarian communities Big Sandy and Holladay.

  3. Pi bond - Wikipedia

    en.wikipedia.org/wiki/Pi_bond

    Ethylene (ethene), a small organic molecule containing a pi bond, shown in green.. In chemistry, pi bondsbonds) are covalent chemical bonds, in each of which two lobes of an orbital on one atom overlap with two lobes of an orbital on another atom, and in which this overlap occurs laterally.

  4. List of counties in Tennessee - Wikipedia

    en.wikipedia.org/wiki/List_of_counties_in_Tennessee

    Counties of Tennessee Location State of Tennessee Number 95 Populations 5,128 (Pickett) - 910,042 (Shelby) Areas 114 sq mi (300 km 2) (Trousdale) -755 sq mi (1,960 km 2) (Shelby) Government County government Subdivisions cities, towns, unincorporated communities, census designated place There are 95 counties in the U.S. State of Tennessee. As of 2023, Shelby County was both Tennessee's most ...

  5. Covalent bond - Wikipedia

    en.wikipedia.org/wiki/Covalent_bond

    In organic chemistry, covalent bonding is much more common than ionic bonding. Covalent bonding also includes many kinds of interactions, including σ-bonding, π-bonding, metal-to-metal bonding, agostic interactions, bent bonds, three-center two-electron bonds and three-center four-electron bonds. [2] [3] The term covalent bond dates from 1939 ...

  6. Bent bond - Wikipedia

    en.wikipedia.org/wiki/Bent_bond

    This is because according to Bent's rule, the C–F bond gains p-orbital character leading to high s-character in the C–H bonds, and H–C–H bond angles approaching those of sp 2 orbitals – e.g. 120° – leaving less for the F–C–H bond angle. The difference is again explained in terms of bent bonds. [3]

  7. Molecular orbital diagram - Wikipedia

    en.wikipedia.org/wiki/Molecular_orbital_diagram

    The σ from the 2p is more non-bonding due to mixing, and same with the 2s σ. This also causes a large jump in energy in the 2p σ* orbital. The bond order of diatomic nitrogen is three, and it is a diamagnetic molecule. [12] The bond order for dinitrogen (1σ g 2 1σ u 2 2σ g 2 2σ u 2 1π u 4 3σ g 2) is three because two electrons are now ...

  8. Bent's rule - Wikipedia

    en.wikipedia.org/wiki/Bent's_rule

    The inductive effect is the transmission of charge through covalent bonds and Bent's rule provides a mechanism for such results via differences in hybridisation. In the table below, [ 26 ] as the groups bonded to the central carbon become more electronegative, the central carbon becomes more electron-withdrawing as measured by the polar ...

  9. Dewar–Chatt–Duncanson model - Wikipedia

    en.wikipedia.org/wiki/Dewar–Chatt–Duncanson...

    H 2 O the C−C bond length has increased to 134 picometres from 133 pm for ethylene. In the nickel compound Ni(C 2 H 4)(PPh 3) 2 the value is 143 pm. The interaction also causes carbon atoms to "rehybridise" from sp 2 towards sp 3, which is indicated by the bending of the hydrogen atoms on the ethylene back away from the metal. [4]