Chem - Lewis Dot Structures gen

Chem - Lewis Dot Structures gen - filled with both e-before...

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Lewis Dot Structure Allows us to see the placement of e - used in bonding Steps to Constructing Lewis Dot Structures 1. Write the symbol of the subject element. 2. Construct the short hand electron configuration 3. Determine the number of valence e - Valence e - highest energy level “s” and “p” electrons which are the only electrons used in chemical bonding 4. Distribute the valence electrons around the symbol as dots Picture the symbol as a box with 4 sides (Actually each side is an orbital, 1 “s” orbital and 3 “p” orbitals) Each side of the “box” receives only 2 e - (This is according to Hund’s Rule.) The right side of the box is the “s” orbital and is completely
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Unformatted text preview: filled with both e-before any e-are placed into the other sides of the box (“p” orbitals) If there are any more than 2 valence e-which are to be placed in the “p” orbitals, then each side of the box (orbital) gets one e-before any orbital receives two e-Ex: Phosphorous 1. P 2. [Ne]3s 2 3p 3 3. 5 valence e-Answer P Ex: Calcium 1. Ca 2. [Ar]4s 2 3. 2 valence e-Answer Ca Ex: Germanium 1. Ge 2. [Ar]4s 2 3d 10 4p 2 3. 4 valence e-(Remember valence e-only come from s and p orbitals) Answer Ge Ex: Oxygen 1. O 2. [He]2s 2 2p 4 3. 6 valence e-Answer O...
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This note was uploaded on 02/28/2008 for the course CHEM 1021 taught by Professor Hoenigman, during the Fall '07 term at Colorado.

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Chem - Lewis Dot Structures gen - filled with both e-before...

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