Compound Review

Compound Review - Compound Review Are all covalent bonds...

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Compound Review Are all covalent bonds the same? What info. Can you get from a Lewis structure? How do you quantify compounds? Text: Sections 5.5, 5.2, 5.9, 1.5, Appendix A.8 – A.9 A.        Bond Lengths and Energies      (Sec 5.5) 1. Bonding e-like “glue” that holds the atoms together 2. Single Double Triple --------------------------------------------------- Less “glue” more “glue” Weaker bond stronger bond Smaller bond E larger bond E Longer bond shorter bond 3. Fractional bond orders in between B.        Bond Polarity     1. Up to now: o Covalent bond/e -  equally shared 2. Ex. HCL Cl has bigger EN e pair pulled towards Cl S+  = partial (+) charge (~0.2+) “(+) Pole” A polar molecule/a dipole 3. Continuum of bonds o Covalent/polar/ionic Atom: H Cl F Na EN: 2.1 3.0 4.0 0.9 4. Reality: a continuum of “ionic character” and “covalent character.”
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This note was uploaded on 03/30/2008 for the course CH 101 taught by Professor Bigham during the Fall '08 term at N.C. State.

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Compound Review - Compound Review Are all covalent bonds...

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