Blake Lecture 11-3-08 - Blake Chemistry Ex 1 If 2 atoms and...

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Blake 11-3-08 Chemistry Ex 1: If 2 atoms and one lone pair attached to the central atom, the hybridization is 1. Sp 2. Sp 2 – ANSWER (Trigonal Planar) 3. Sp 3 4. Sp 3 d Hybridization If you know the electronic geometry of a central atom you now it’s hybridization 2 things – linear sp 3 things – Trigonal planar sp 2 4 things – tetrahedral sp 3 5 things Trigonal pyramidal sp 3 d 6 things – octahedral sp 3 d 2 Electronic Geometries and Shapes For each electronic geometry, list the possible molecule shapes Depends on number atoms and lone pairs Suggested exercises: Molecules in Table 8.10 in book Tetrahedral Ideal bond angle of 109.5 degrees Derivative shapes: tetrahedral, Trigonal pyramidal and bent Real bond angles: methane, ammonia, water Sp 3 4 things on central atom NH NH 3 – 107 degrees and Trigonal pyramidal CH 4 – tetrahedral and 109.5 degrees H 2 O – Bent & 104.5 degrees Trigonal Bipyramidal
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  • Spring '09
  • Electron, Molecule, trigonal bipyramidal, Chemical polarity, Trigonal pyramidal sp3d

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